{"id":1493,"date":"2026-06-30T13:10:00","date_gmt":"2026-06-30T13:10:00","guid":{"rendered":"https:\/\/blog.predictleads.com\/?p=1493"},"modified":"2026-11-02T20:14:38","modified_gmt":"2026-11-02T20:14:38","slug":"similartech-alternatives","status":"publish","type":"post","link":"https:\/\/predictleads.com\/blog\/similartech-alternatives\/","title":{"rendered":"SimilarTech Alternatives: November 2026 Picks"},"content":{"rendered":"<p><em>By Robert Fon \/ October 21, 2026<\/em><\/p>\n\n<p>If you are a sales operations, growth, or RevOps team building automated prospecting or enrichment pipelines, running SimilarTech lookups one site at a time, or waiting on a Similarweb sales conversation to unlock a bundled Sales Intelligence seat, leaves you with signals you cannot easily automate into your own lists. This guide is for buyers deciding between a self-serve technographic API and a traditional web-app tool like SimilarTech, so you can confirm quickly whether it matches your situation. A self-serve, multi-source API closes that gap: it surfaces backend evidence a website crawl cannot see and ships data where your CRM, warehouse, or AI agent can use it. Below are the SimilarTech alternatives worth a look in October 2026, scored on six public criteria, with PredictLeads as the strongest overall option for teams that need more than a web app.<\/p><p><strong>TLDR:<\/strong><\/p>\n<ul class=\"list-disc pl-6\"><li class=\"list-item\">SimilarTech detects technologies from a website crawl and layers on Similarweb\u2019s traffic and geographic data, which is useful for ranking adopters by audience size.<\/li><li class=\"list-item\">It is sold as part of Similarweb\u2019s enterprise Sales Intelligence suite instead of as a self-serve, pay-as-you-go API, so public pricing and detection documentation are limited.<\/li><li class=\"list-item\">Most SimilarTech alternatives in this comparison cover one or two evidence types; none of the others pairs five-source technology detection, including job descriptions, with self-serve API, flat file, webhook, and MCP delivery.<\/li><li class=\"list-item\">BuiltWith and Wappalyzer suit fast, large-scale or single-site website lookups, while MixRank, TheirStack, and HG Insights each add a narrower specialty such as ad intelligence, job postings, or enterprise IT spend.<\/li><li class=\"list-item\">PredictLeads Technology Detections cover 2B+ detections since 2018 across 99M+ companies and 240,000+ technologies, delivered through API, flat files, webhooks, and MCP.<\/li><\/ul><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"><\/path><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1 \"><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#What_Is_SimilarTech\">What Is SimilarTech?<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#What_SimilarTech_Does_Well\">What SimilarTech Does Well<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Why_Teams_Look_for_SimilarTech_Alternatives\">Why Teams Look for SimilarTech Alternatives<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#How_We_Ranked_These_SimilarTech_Alternatives\">How We Ranked These SimilarTech Alternatives<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Best_Overall_SimilarTech_Alternative_PredictLeads\">Best Overall SimilarTech Alternative: PredictLeads<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#What_PredictLeads_Offers\">What PredictLeads Offers<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Why_the_Combination_Wins\">Why the Combination Wins<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Keep_in_Mind\">Keep in Mind<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#BuiltWith_Website_Technology_Index_at_Scale\">BuiltWith: Website Technology Index at Scale<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Wappalyzer_Browser-Based_Lookups_for_Individual_Sites\">Wappalyzer: Browser-Based Lookups for Individual Sites<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#MixRank_Web_Technology_Paired_With_Ad_and_App_Intelligence\">MixRank: Web Technology Paired With Ad and App Intelligence<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#TheirStack_Technology_Evidence_From_Job_Postings\">TheirStack: Technology Evidence From Job Postings<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#HG_Insights_Enterprise_Technographics_and_IT_Spend\">HG Insights: Enterprise Technographics and IT Spend<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#SimilarTech_Alternatives_Feature_Comparison\">SimilarTech Alternatives Feature Comparison<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Why_PredictLeads_Is_the_Best_SimilarTech_Alternative\">Why PredictLeads Is the Best SimilarTech Alternative<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#A_Worked_Example\">A Worked Example<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Built_for_Data_Builders_and_AI_Agents\">Built for Data Builders and AI Agents<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Frequently_Asked_Questions\">Frequently Asked Questions<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#What_is_the_best_SimilarTech_alternative_in_October_2026\">What is the best SimilarTech alternative in October 2026?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Does_SimilarTech_detect_backend_or_infrastructure_technologies_or_only_front-end_website_tools\">Does SimilarTech detect backend or infrastructure technologies, or only front-end website tools?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Can_I_get_SimilarTech-style_technology_alerts_without_an_enterprise_Similarweb_contract\">Can I get SimilarTech-style technology alerts without an enterprise Similarweb contract?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#How_is_PredictLeads_different_from_SimilarTech_and_BuiltWith\">How is PredictLeads different from SimilarTech and BuiltWith?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Which_SimilarTech_alternative_works_best_for_marketing_and_competitive_intelligence_teams\">Which SimilarTech alternative works best for marketing and competitive intelligence teams?<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Ready_to_see_this_in_your_own_data\">Ready to see this in your own data?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/#Final_Thoughts_on_Choosing_a_SimilarTech_Alternative\">Final Thoughts on Choosing a SimilarTech Alternative<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_SimilarTech\"><\/span><span class=\"ez-toc-section\" id=\"What_Is_SimilarTech\"><\/span>What Is SimilarTech?<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>SimilarTech is Similarweb\u2019s website technology detection product. It identifies the technologies a site uses from a crawl of its public pages, then layers on Similarweb\u2019s traffic and geographic data so you can rank technology adopters by audience size instead of by company count alone. A <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/techcrunch.com\/2016\/05\/25\/similartech-tells-you-whats-powering-any-website-alerts-web-companies-to-new-leads\">2016 TechCrunch profile of the product<\/a> described it as telling you what is powering any website and alerting web companies to new leads when a tracked technology appears on a new site. A <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/salesforge.ai\/directory\/sales-tools\/similartech\">sales-tools directory listing<\/a> and <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/www.g2.com\/products\/similartech\/reviews\">G2 reviewer summaries<\/a> both describe technology lookups, lead lists, and website monitoring alerts for stack changes among its core features.<\/p><figure class=\"wp-block-image\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1672\" height=\"941\" src=\"https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/78NiAAn4eTMnh5IMTUTtO.png\" alt=\"A clean, modern digital illustration showing a web browser window with a magnifying glass scanning over abstract website code blocks and technology icons (gears, chips, network nodes), with faint data signal waves radiating outward, symbolizing website technology detection. Flat design, blue and teal color palette, minimal and professional, no text or letters anywhere in the image.\" class=\"wp-image-2354\" srcset=\"https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/78NiAAn4eTMnh5IMTUTtO.png 1672w, https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/78NiAAn4eTMnh5IMTUTtO-300x169.png 300w, https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/78NiAAn4eTMnh5IMTUTtO-1024x576.png 1024w, https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/78NiAAn4eTMnh5IMTUTtO-768x432.png 768w, https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/78NiAAn4eTMnh5IMTUTtO-1536x864.png 1536w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/figure><p>When you look at SimilarTech, you are typically weighing:<\/p><ul class=\"list-disc pl-6\"><li class=\"list-item\"><strong>Technology detection:<\/strong> which tools a tracked site uses, based on a crawl of its public website.<\/li><li class=\"list-item\"><strong>Traffic-weighted lead lists:<\/strong> sites running a given technology, ranked using Similarweb\u2019s traffic and geographic data.<\/li><li class=\"list-item\"><strong>Stack-change alerts:<\/strong> notifications when a tracked site adopts or drops a technology.<\/li><\/ul><h3><span class=\"ez-toc-section\" id=\"What_SimilarTech_Does_Well\"><\/span><span class=\"ez-toc-section\" id=\"What_SimilarTech_Does_Well\"><\/span>What SimilarTech Does Well<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Pairing a technology detection with traffic size answers a specific question: which high-traffic sites run a given platform, or how large an audience a technology reaches. Teams already paying for Similarweb\u2019s traffic and marketing intelligence products gain a technographic layer without adding a separate vendor relationship.<\/p>\n\n<h3><span class=\"ez-toc-section\" id=\"Why_Teams_Look_for_SimilarTech_Alternatives\"><\/span><span class=\"ez-toc-section\" id=\"Why_Teams_Look_for_SimilarTech_Alternatives\"><\/span>Why Teams Look for SimilarTech Alternatives<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>SimilarTech\u2019s documented method relies on a website crawl, so it shares the core limitation of every browser- and crawler-based scanner: a tool that never shows up in a site\u2019s public code, such as a data warehouse or an internal ERP system, falls outside what it can see. It is also sold inside Similarweb\u2019s enterprise suite instead of as a standalone, self-serve product, and public materials omit per-record source attribution and historical first-seen and last-seen fields. That enterprise-bundled pricing model tends to fit larger organizations already invested in Similarweb\u2019s suite more than self-serve buyers or smaller teams. For the wider category, see our ranking of the <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/technographic-data-providers\/\">best technographic data providers<\/a>. PredictLeads reaches the same backend layer through the <code spellcheck=\"false\">seen_on_job_openings<\/code> field on Technology Detections.<\/p><h2><span class=\"ez-toc-section\" id=\"How_We_Ranked_These_SimilarTech_Alternatives\"><\/span><span class=\"ez-toc-section\" id=\"How_We_Ranked_These_SimilarTech_Alternatives\"><\/span>How We Ranked These SimilarTech Alternatives<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>We scored each tool on six dimensions that decide whether a technology detection is useful beyond a single website lookup:<\/p>\n<ol class=\"list-decimal pl-6 space-y-1\"><li class=\"list-item\"><strong>Detection sources:<\/strong> how many independent evidence types back a result, such as page code, DNS records, IP ranges, cookies, and job descriptions.<\/li><li class=\"list-item\"><strong>Backend evidence:<\/strong> whether the tool can see technologies that never render on a public page.<\/li><li class=\"list-item\"><strong>Coverage scale:<\/strong> the published count of websites, companies, or tracked technologies.<\/li><li class=\"list-item\"><strong>Historical timestamps:<\/strong> whether a record carries first-seen and last-seen dates you can use to trend adoption.<\/li><li class=\"list-item\"><strong>Source transparency:<\/strong> whether a detection links back to the page, record, or posting that produced it.<\/li><li class=\"list-item\"><strong>Delivery methods:<\/strong> web app, browser extension, API, flat files, webhooks, or MCP.<\/li><\/ol><p>Scores come from public documentation and neutral third-party reviews available in October 2026, not hands-on testing, following the same method we recommend for <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/evaluate-technographic-data-provider-b2b-enrichment\/\">weighing a technographic data provider<\/a>. Where a vendor did not publish enough detail to score a dimension, we marked it as a gap instead of guessing at a number. Coverage figures also count different things, such as websites versus companies, so read scale numbers as directional and not directly comparable.<\/p><figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1672\" height=\"941\" src=\"https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/YasHerlEvk6pKrxjYDT4F.png\" alt=\"A clean, modern flat digital illustration of an abstract evaluation scorecard: a vertical checklist panel with six distinct checkmark icons and small gauge or meter dials beside stacked layers of database and network nodes, symbolizing scoring criteria like data sources, coverage, and timestamps. Blue and teal color palette, minimal and professional, no text or letters anywhere in the image.\" class=\"wp-image-2355\" srcset=\"https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/YasHerlEvk6pKrxjYDT4F.png 1672w, https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/YasHerlEvk6pKrxjYDT4F-300x169.png 300w, https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/YasHerlEvk6pKrxjYDT4F-1024x576.png 1024w, https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/YasHerlEvk6pKrxjYDT4F-768x432.png 768w, https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/YasHerlEvk6pKrxjYDT4F-1536x864.png 1536w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/figure><h2><span class=\"ez-toc-section\" id=\"Best_Overall_SimilarTech_Alternative_PredictLeads\"><\/span><span class=\"ez-toc-section\" id=\"Best_Overall_SimilarTech_Alternative_PredictLeads\"><\/span>Best Overall SimilarTech Alternative: PredictLeads<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>PredictLeads is a B2B company intelligence and technographic data provider. It delivers structured, source-backed Technology Detections through a <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/technographic-data-api-for-b2b-enrichment\/\">technographic data API<\/a>, flat files, webhooks, and MCP, not a web app or a bundled enterprise seat, so it fits teams that want the data flowing into their own CRM, warehouse, or AI agent.<\/p><h3><span class=\"ez-toc-section\" id=\"What_PredictLeads_Offers\"><\/span><span class=\"ez-toc-section\" id=\"What_PredictLeads_Offers\"><\/span>What PredictLeads Offers<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul class=\"list-disc pl-6\"><li class=\"list-item\"><strong>Technology Detections:<\/strong> 2B+ detections since 2018 across 99M+ companies and 240,000+ technologies, from script tags, DNS records, IP ranges, cookies, and job descriptions, as detailed in our <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/technographics-dataset\/\">technographics dataset breakdown<\/a>.<\/li><li class=\"list-item\"><strong>Five detection sources, job descriptions included:<\/strong> covers the backend and internal tools a website crawl cannot see.<\/li><li class=\"list-item\"><strong>The <\/strong><code spellcheck=\"false\">behind_firewall<\/code><strong> flag:<\/strong> separates page-level detections from evidence found outside the public website.<\/li><li class=\"list-item\"><strong>Source attribution on every record:<\/strong> each detection links to its subpage URL, job opening URL, or DNS record; Extended Technology Detections add <code spellcheck=\"false\">detection_source<\/code> and <code spellcheck=\"false\">detection_source_type<\/code>.<\/li><li class=\"list-item\"><strong>Timestamps and corroboration:<\/strong> <code spellcheck=\"false\">first_seen_at<\/code>, <code spellcheck=\"false\">last_seen_at<\/code>, and <code spellcheck=\"false\">source_count<\/code> let you trend adoption and weigh a single mention against corroborated evidence.<\/li><li class=\"list-item\"><strong>Adjacent signals in the same API:<\/strong> Job Openings (279.2M+ records since 2018), News Events (10M+ since 2016, 37 categories), and Financing Events (210,800+ since 2016).<\/li><\/ul><h3><span class=\"ez-toc-section\" id=\"Example_Use_Cases\"><\/span>Example Use Cases<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"list-disc pl-6\"><li class=\"list-item\">Pull companies where a competitor&#8217;s technology shows a recent <code spellcheck=\"false\">first_seen_at<\/code> date from script tag or DNS evidence, then build a targeted outbound list around the switch.<\/li><li class=\"list-item\">Filter Job Openings for roles naming a specific tool as a required skill, then time outreach to land before the account&#8217;s next contract renewal.<\/li><li class=\"list-item\">Join Technology Detections with Financing Events tagged <code spellcheck=\"false\">receives_financing<\/code> to rank newly funded accounts that are likely to expand their stack.<\/li><li class=\"list-item\">Feed <code spellcheck=\"false\">behind_firewall<\/code> detections into a CRM field to flag enterprise accounts running internal tools a website crawl would never surface.<\/li><\/ul><figure style=\"margin:28px 0;\">\n<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 880 240\" role=\"img\" aria-labelledby=\"stStatsTitle stStatsDesc\" style=\"width:100%;height:auto;display:block;\">\n<title id=\"stStatsTitle\">PredictLeads Technology Detections by the numbers<\/title>\n<desc id=\"stStatsDesc\">Four stat tiles: 2B+ technology detections since 2018, 99M+ companies with detections, 240,000+ technologies tracked, and 5 detection sources including job descriptions.<\/desc>\n<rect x=\"0\" y=\"0\" width=\"880\" height=\"240\" rx=\"18\" fill=\"#f3ecf8\"><\/rect>\n<text x=\"40\" y=\"46\" font-family=\"'Poppins','Segoe UI',system-ui,sans-serif\" font-size=\"20\" font-weight=\"800\" font-style=\"italic\" fill=\"#5b3d70\">PredictLeads Technology Detections by the numbers<\/text>\n<g font-family=\"'Poppins','Segoe UI',system-ui,sans-serif\" text-anchor=\"middle\">\n<rect x=\"40\" y=\"70\" width=\"188\" height=\"130\" rx=\"14\" fill=\"#ffffff\" stroke=\"#ece0f5\" stroke-width=\"2\"><\/rect>\n<rect x=\"114\" y=\"70\" width=\"40\" height=\"6\" rx=\"3\" fill=\"#76508e\"><\/rect>\n<text x=\"134\" y=\"132\" font-size=\"36\" font-weight=\"800\" fill=\"#76508e\">2B+<\/text>\n<text x=\"134\" y=\"162\" font-size=\"14\" font-weight=\"600\" fill=\"#3a2f4d\">technology detections<\/text>\n<text x=\"134\" y=\"182\" font-size=\"14\" font-weight=\"600\" fill=\"#3a2f4d\">since 2018<\/text>\n<rect x=\"244\" y=\"70\" width=\"188\" height=\"130\" rx=\"14\" fill=\"#ffffff\" stroke=\"#ece0f5\" stroke-width=\"2\"><\/rect>\n<rect x=\"318\" y=\"70\" width=\"40\" height=\"6\" rx=\"3\" fill=\"#76508e\"><\/rect>\n<text x=\"338\" y=\"132\" font-size=\"36\" font-weight=\"800\" fill=\"#76508e\">99M+<\/text>\n<text x=\"338\" y=\"162\" font-size=\"14\" font-weight=\"600\" fill=\"#3a2f4d\">companies with<\/text>\n<text x=\"338\" y=\"182\" font-size=\"14\" font-weight=\"600\" fill=\"#3a2f4d\">detections<\/text>\n<rect x=\"448\" y=\"70\" width=\"188\" height=\"130\" rx=\"14\" fill=\"#ffffff\" stroke=\"#ece0f5\" stroke-width=\"2\"><\/rect>\n<rect x=\"522\" y=\"70\" width=\"40\" height=\"6\" rx=\"3\" fill=\"#76508e\"><\/rect>\n<text x=\"542\" y=\"132\" font-size=\"36\" font-weight=\"800\" fill=\"#76508e\">240,000+<\/text>\n<text x=\"542\" y=\"162\" font-size=\"14\" font-weight=\"600\" fill=\"#3a2f4d\">technologies<\/text>\n<text x=\"542\" y=\"182\" font-size=\"14\" font-weight=\"600\" fill=\"#3a2f4d\">tracked<\/text>\n<rect x=\"652\" y=\"70\" width=\"188\" height=\"130\" rx=\"14\" fill=\"#ffffff\" stroke=\"#ece0f5\" stroke-width=\"2\"><\/rect>\n<rect x=\"726\" y=\"70\" width=\"40\" height=\"6\" rx=\"3\" fill=\"#76508e\"><\/rect>\n<text x=\"746\" y=\"132\" font-size=\"36\" font-weight=\"800\" fill=\"#76508e\">5<\/text>\n<text x=\"746\" y=\"162\" font-size=\"14\" font-weight=\"600\" fill=\"#3a2f4d\">detection sources,<\/text>\n<text x=\"746\" y=\"182\" font-size=\"14\" font-weight=\"600\" fill=\"#3a2f4d\">incl. job descriptions<\/text>\n<\/g>\n<text x=\"40\" y=\"226\" font-family=\"'Poppins','Segoe UI',system-ui,sans-serif\" font-size=\"12\" fill=\"#5b3d70\">Source: PredictLeads dataset figures, October 2026. Figures are rounded.<\/text>\n<\/svg>\n<figcaption style=\"font-size:13px;color:#5b3d70;margin-top:8px;\">PredictLeads Technology Detections at a glance.<\/figcaption>\n<\/figure>\n\n<h3><span class=\"ez-toc-section\" id=\"Why_the_Combination_Wins\"><\/span><span class=\"ez-toc-section\" id=\"Why_the_Combination_Wins\"><\/span>Why the Combination Wins<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>A traffic-weighted lead list tells you which high-traffic sites use a tool today. It does not tell you when that changed, whether another source corroborates it, or whether the account is hiring for a related skill or just raised funding. PredictLeads is the only provider in this comparison that natively combines five-source technology detection, job descriptions included, with timestamps, source attribution, and hiring, funding, and news signals in a single, self-serve API. Our guide to <a href=\"https:\/\/predictleads.com\/blog\/job-openings-data-technographics\/\">combining job openings data with technographics<\/a> walks through the method.<\/p>\n\n<h3><span class=\"ez-toc-section\" id=\"Keep_in_Mind\"><\/span><span class=\"ez-toc-section\" id=\"Keep_in_Mind\"><\/span>Keep in Mind<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>PredictLeads skips website traffic and audience data, browser extensions, and lead-list web apps, delivering instead through the API, flat files, webhooks, or MCP, with native integrations for Clay, Make, and n8n. It best fits data, RevOps, and growth teams at startups through mid-market companies that want to pipe technographic data into their own systems. Teams needing traffic context alongside technology evidence usually keep a dedicated analytics tool for that layer.<\/p><h2><span class=\"ez-toc-section\" id=\"BuiltWith_Website_Technology_Index_at_Scale\"><\/span><span class=\"ez-toc-section\" id=\"BuiltWith_Website_Technology_Index_at_Scale\"><\/span>BuiltWith: Website Technology Index at Scale<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>BuiltWith crawls websites at scale to build a technology index and lead lists, with history you can use to track an adoption curve over time.<\/p><p><strong>What They Offer<\/strong><\/p>\n<ul class=\"list-disc pl-6\"><li class=\"list-item\">Single-domain lookups plus bulk lead lists filtered by technology, industry, and location.<\/li><li class=\"list-item\">An index cited at nearly half a billion domains in a <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/pipeline.zoominfo.com\/sales\/builtwith-vs-wappalyzer\">May 2026 third-party comparison<\/a>, with historical detection dates for trend tracking.<\/li><li class=\"list-item\">API access on higher tiers, plus CRM integrations.<\/li><\/ul><p><strong>Good for:<\/strong> website-technology market research, such as sizing how many sites run a specific e-commerce platform.<\/p>\n<p><strong>Limitation:<\/strong> detection is website-based, so backend tools that never load in a browser, the same gap SimilarTech has, fall outside its documented method.<\/p>\n<p><strong>Bottom line:<\/strong> BuiltWith indexes more domains than PredictLeads covers with technology data (99M+ companies), while PredictLeads adds job-description evidence and 279.2M+ job openings in the same API.<\/p>\n<p><strong>Sources:<\/strong> <a href=\"https:\/\/www.g2.com\/products\/builtwith\/reviews\" target=\"_blank\" rel=\"noopener\">BuiltWith reviews on G2<\/a>; <a href=\"https:\/\/pipeline.zoominfo.com\/sales\/builtwith-vs-wappalyzer\" target=\"_blank\" rel=\"noopener\">BuiltWith vs. Wappalyzer comparison (May 2026)<\/a>.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"Wappalyzer_Browser-Based_Lookups_for_Individual_Sites\"><\/span><span class=\"ez-toc-section\" id=\"Wappalyzer_Browser-Based_Lookups_for_Individual_Sites\"><\/span>Wappalyzer: Browser-Based Lookups for Individual Sites<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>Wappalyzer is best known for a browser extension that profiles a site\u2019s stack in one click.<\/p><p><strong>What They Offer<\/strong><\/p>\n<ul class=\"list-disc pl-6\"><li class=\"list-item\">A free plan with a capped number of monthly lookups, plus lead lists and website alerts.<\/li><li class=\"list-item\">A paid API and, per the same May 2026 comparison, a hosted MCP server on higher tiers.<\/li><li class=\"list-item\">Fingerprints that match page code, scripts, headers, cookies, and some DNS patterns.<\/li><\/ul><p><strong>Good for:<\/strong> developers, marketers, and SEO practitioners who want an instant check on a single site, no bulk list required.<\/p>\n<p><strong>Limitation:<\/strong> the same comparison notes it \u201ccannot detect server-side or hidden technologies,\u201d a gap job descriptions are built to close.<\/p>\n<p><strong>Bottom line:<\/strong> PredictLeads adds DNS, IP range, cookie, and job-description evidence across 99M+ companies, with history back to 2018.<\/p>\n<p><strong>Sources:<\/strong> <a href=\"https:\/\/www.g2.com\/products\/wappalyzer\/reviews\" target=\"_blank\" rel=\"noopener\">Wappalyzer reviews on G2<\/a>; <a href=\"https:\/\/pipeline.zoominfo.com\/sales\/builtwith-vs-wappalyzer\" target=\"_blank\" rel=\"noopener\">BuiltWith vs. Wappalyzer comparison (May 2026)<\/a>.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"MixRank_Web_Technology_Paired_With_Ad_and_App_Intelligence\"><\/span><span class=\"ez-toc-section\" id=\"MixRank_Web_Technology_Paired_With_Ad_and_App_Intelligence\"><\/span>MixRank: Web Technology Paired With Ad and App Intelligence<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>MixRank is a web, mobile app, and advertising intelligence provider that includes website technology detection alongside ad creative and app SDK tracking.<\/p>\n<p><strong>What They Offer<\/strong><\/p>\n<ul class=\"list-disc pl-6\"><li class=\"list-item\">A website crawl that G2 reviewers and a comparison published by ZoomInfo\u2019s Pipeline blog describe as covering hundreds of millions of sites for more than 4,000 hand-curated web technologies.<\/li><li class=\"list-item\">Ad creative and mobile app SDK intelligence alongside the technology data.<\/li><li class=\"list-item\">A self-service web app; <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/www.g2.com\/products\/mixrank\">G2 rates it 3.8 out of 5<\/a> across a dozen reviews.<\/li><\/ul><p><strong>Good for:<\/strong> teams that want web technology signals bundled with advertising and mobile-app intelligence in a single platform.<\/p>\n<p><strong>Limitation:<\/strong> historical first-seen and last-seen fields and a published source-attribution model are not documented in the materials we reviewed, and job-description or hiring evidence is not part of its public feature set.<\/p>\n<p><strong>Bottom line:<\/strong> PredictLeads publishes pay-as-you-go pricing and timestamps every detection with <code spellcheck=\"false\">first_seen_at<\/code> and <code spellcheck=\"false\">last_seen_at<\/code>, while MixRank\u2019s coverage and pricing are typically cited through third-party comparisons instead of a public rate card.<\/p><p><strong>Sources:<\/strong> <a href=\"https:\/\/www.g2.com\/products\/mixrank\" target=\"_blank\" rel=\"noopener\">MixRank on G2<\/a>; <a href=\"https:\/\/pipeline.zoominfo.com\/sales\/mixrank-alternatives\" target=\"_blank\" rel=\"noopener\">MixRank alternatives comparison, ZoomInfo Pipeline<\/a>.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"TheirStack_Technology_Evidence_From_Job_Postings\"><\/span><span class=\"ez-toc-section\" id=\"TheirStack_Technology_Evidence_From_Job_Postings\"><\/span>TheirStack: Technology Evidence From Job Postings<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>TheirStack takes the opposite approach from a website scanner: it infers technology usage from the tools named in job postings instead of crawling pages.<\/p><p><strong>What They Offer<\/strong><\/p>\n<ul class=\"list-disc pl-6\"><li class=\"list-item\">Technology detection from job descriptions, which a <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/syncgtm.com\/blog\/theirstack-review\">2026 third-party review<\/a> puts at 32,000+ technologies across 11M+ companies.<\/li><li class=\"list-item\">A link from each detection back to the job posting it came from.<\/li><li class=\"list-item\">A web app, REST API, webhooks on paid plans, and CSV export.<\/li><\/ul><p><strong>Good for:<\/strong> teams that want hiring-based evidence for backend and data tools that a website crawl, SimilarTech\u2019s included, would never catch.<\/p>\n<p><strong>Limitation:<\/strong> detection depends on active hiring, so a company in a hiring freeze produces sparse signals, and the review lists no website, DNS, or traffic evidence to corroborate a posting mention.<\/p>\n<p><strong>Bottom line:<\/strong> PredictLeads reads job descriptions as one of five sources and pairs them with 10.2M active job openings and a website-level scan, so neither evidence type has to stand alone.<\/p>\n<p><strong>Sources:<\/strong> <a href=\"https:\/\/syncgtm.com\/blog\/theirstack-review\" target=\"_blank\" rel=\"noopener\">TheirStack review by SyncGTM (2026)<\/a>.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"HG_Insights_Enterprise_Technographics_and_IT_Spend\"><\/span><span class=\"ez-toc-section\" id=\"HG_Insights_Enterprise_Technographics_and_IT_Spend\"><\/span>HG Insights: Enterprise Technographics and IT Spend<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>HG Insights sells technographic data paired with modeled IT spend to enterprise go-to-market teams planning territory and budget.<\/p>\n<p><strong>What They Offer<\/strong><\/p>\n<ul class=\"list-disc pl-6\"><li class=\"list-item\">Technographic data focused on enterprise accounts, plus cloud adoption data added when it <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/www.mrweb.com\/drno\/news33054.htm\">acquired Intricately in March 2022<\/a>.<\/li><li class=\"list-item\">Modeled IT spend estimates by technology category.<\/li><li class=\"list-item\">Account scoring and CRM integrations.<\/li><\/ul><p><strong>Good for:<\/strong> enterprise sellers whose territory planning depends on estimated technology budgets in categories such as cloud, security, and CRM.<\/p>\n<p><strong>Limitation:<\/strong> pricing is not published, access is geared toward the enterprise, and per-detection source attribution is not documented in the materials we reviewed.<\/p><p><strong>Bottom line:<\/strong> PredictLeads publishes self-serve, pay-as-you-go API pricing and covers 120M+ companies, well beyond the enterprise tier.<\/p><p><strong>Sources:<\/strong> <a href=\"https:\/\/www.mrweb.com\/drno\/news33054.htm\" target=\"_blank\" rel=\"noopener\">Mr Web coverage of the Intricately acquisition<\/a>; <a href=\"https:\/\/www.g2.com\/products\/hg-insights\/reviews\" target=\"_blank\" rel=\"noopener\">HG Insights reviews on G2<\/a>.<\/p>\n\n<h2><span class=\"ez-toc-section\" id=\"SimilarTech_Alternatives_Feature_Comparison\"><\/span><span class=\"ez-toc-section\" id=\"SimilarTech_Alternatives_Feature_Comparison\"><\/span>SimilarTech Alternatives Feature Comparison<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>The table scores each provider on the six ranking dimensions, with SimilarTech as the baseline. \u201cNot published\u201d marks a gap in public documentation, not a confirmed absence.<\/p>\n\n<table class=\"border-collapse table-fixed w-full max-w-full\" style=\"border-collapse: collapse; width: 100%; min-width: 150px\"><caption style=\"caption-side: top; text-align: left; color: #000000; padding: 0 0 8px; font-size: 14px\">SimilarTech alternatives scored on the six ranking dimensions<\/caption><tbody><tr class=\"\"><th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\"><p>Provider<\/p><\/th><th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\"><p>Detection Sources<\/p><\/th><th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\"><p>Backend Evidence<\/p><\/th><th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\"><p>Coverage Scale<\/p><\/th><th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\"><p>Historical Timestamps<\/p><\/th><th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\"><p>Source Transparency<\/p><\/th><th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\"><p>Delivery Methods<\/p><\/th><\/tr><tr class=\"\"><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>SimilarTech<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Website crawl only<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not documented<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published (traffic-weighted ranking via Similarweb)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Web app, bundled in Similarweb&#8217;s enterprise suite<\/p><\/td><\/tr><tr class=\"\"><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>PredictLeads<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Five sources: script tags, DNS records, IP ranges, cookies, job descriptions<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Yes, behind_firewall field<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>99M+ companies, 240,000+ technologies, 2B+ detections since 2018<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Yes, first_seen_at and last_seen_at<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Yes, links to subpage, job opening, or DNS record<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>API, flat files, webhooks, MCP<\/p><\/td><\/tr><tr class=\"\"><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>BuiltWith<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Website crawl<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not documented<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Nearly 500M domains indexed<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Yes, historical detection dates<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Web app, API on higher tiers, CRM integrations<\/p><\/td><\/tr><tr class=\"\"><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Wappalyzer<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Page code, scripts, headers, cookies, some DNS patterns<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>No, cannot detect server-side or hidden technologies<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Browser extension, web app, paid API, hosted MCP on higher tiers<\/p><\/td><\/tr><tr class=\"\"><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>MixRank<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Website crawl<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not documented<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Hundreds of millions of sites, 4,000+ technologies<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Self-service web app<\/p><\/td><\/tr><tr class=\"\"><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>TheirStack<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Job postings<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>No website, DNS, or traffic evidence<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>32,000+ technologies, 11M+ companies<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Yes, links to the job posting<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Web app, REST API, webhooks on paid plans, CSV export<\/p><\/td><\/tr><tr class=\"\"><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>HG Insights<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Technographic data plus modeled IT spend<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not documented<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published, enterprise accounts only<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Not published<\/p><\/td><td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\"><p>Account scoring, CRM integrations, enterprise access<\/p><\/td><\/tr><\/tbody><\/table><div style=\"overflow-x:auto;margin:24px 0;\">\n<table style=\"width:100%;min-width:860px;border-collapse:collapse;font-family:'Poppins','Segoe UI',system-ui,sans-serif;font-size:13px;line-height:1.45;color:#3a2f4d;border:1px solid #ece0f5;\">\n<caption style=\"caption-side:bottom;text-align:left;font-size:12px;color:#5b3d70;padding-top:10px;\">Figures marked * come from the third-party sources linked in each section, not from PredictLeads. PredictLeads figures are rounded and current as of October 2026.<\/caption>\n<thead>\n<tr style=\"background:#76508e;color:#ffffff;\">\n<th scope=\"col\" style=\"padding:10px;text-align:left;\">Tool<\/th>\n<th scope=\"col\" style=\"padding:10px;text-align:left;\">Detection sources<\/th>\n<th scope=\"col\" style=\"padding:10px;text-align:left;\">Backend evidence<\/th>\n<th scope=\"col\" style=\"padding:10px;text-align:left;\">Coverage scale<\/th>\n<th scope=\"col\" style=\"padding:10px;text-align:left;\">Historical timestamps<\/th>\n<th scope=\"col\" style=\"padding:10px;text-align:left;\">Source transparency<\/th>\n<th scope=\"col\" style=\"padding:10px;text-align:left;\">Delivery<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background:#efe4f6;\">\n<th scope=\"row\" style=\"padding:10px;text-align:left;border-left:4px solid #76508e;color:#4a3159;\">PredictLeads<\/th>\n<td style=\"padding:10px;vertical-align:top;\">Yes \u2013 5: script tags, DNS, IP ranges, cookies, job descriptions<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Yes \u2013 <code>behind_firewall<\/code> flag + job descriptions<\/td>\n<td style=\"padding:10px;vertical-align:top;\">99M+ companies; 240,000+ technologies<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Yes \u2013 <code>first_seen_at<\/code> \/ <code>last_seen_at<\/code> since 2018<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Yes \u2013 every detection links to its source<\/td>\n<td style=\"padding:10px;vertical-align:top;\">API, flat files, webhooks, MCP<\/td>\n<\/tr>\n<tr style=\"background:#ffffff;\">\n<th scope=\"row\" style=\"padding:10px;text-align:left;\">SimilarTech (baseline)<\/th>\n<td style=\"padding:10px;vertical-align:top;\">Partial \u2013 website crawl plus Similarweb traffic context<\/td>\n<td style=\"padding:10px;vertical-align:top;\">No \u2013 website-based only<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Web app, alerts, CRM integrations<\/td>\n<\/tr>\n<tr style=\"background:#f3ecf8;\">\n<th scope=\"row\" style=\"padding:10px;text-align:left;\">BuiltWith<\/th>\n<td style=\"padding:10px;vertical-align:top;\">Partial \u2013 website crawl<\/td>\n<td style=\"padding:10px;vertical-align:top;\">No \u2013 job-description source not documented<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Nearly half a billion domains*<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Yes \u2013 historical detection dates<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Web app, lists, API<\/td>\n<\/tr>\n<tr style=\"background:#ffffff;\">\n<th scope=\"row\" style=\"padding:10px;text-align:left;\">Wappalyzer<\/th>\n<td style=\"padding:10px;vertical-align:top;\">Partial \u2013 page code, scripts, headers, some DNS<\/td>\n<td style=\"padding:10px;vertical-align:top;\">No \u2013 \u201ccannot detect server-side or hidden technologies\u201d*<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published in sources reviewed<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Extension, lookups, lists, API, MCP<\/td>\n<\/tr>\n<tr style=\"background:#f3ecf8;\">\n<th scope=\"row\" style=\"padding:10px;text-align:left;\">MixRank<\/th>\n<td style=\"padding:10px;vertical-align:top;\">Partial \u2013 website crawl<\/td>\n<td style=\"padding:10px;vertical-align:top;\">No \u2013 not documented<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Hundreds of millions of sites; 4,000+ technologies*<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Web app<\/td>\n<\/tr>\n<tr style=\"background:#ffffff;\">\n<th scope=\"row\" style=\"padding:10px;text-align:left;\">TheirStack<\/th>\n<td style=\"padding:10px;vertical-align:top;\">Partial \u2013 job postings only<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Yes \u2013 job postings<\/td>\n<td style=\"padding:10px;vertical-align:top;\">11M+ companies; 32,000+ technologies*<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Yes \u2013 links to source posting<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Web app, API, webhooks, CSV<\/td>\n<\/tr>\n<tr style=\"background:#f3ecf8;\">\n<th scope=\"row\" style=\"padding:10px;text-align:left;\">HG Insights<\/th>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Partial \u2013 enterprise accounts<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Not published<\/td>\n<td style=\"padding:10px;vertical-align:top;\">Platform, CRM integrations<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\n<h2><span class=\"ez-toc-section\" id=\"Why_PredictLeads_Is_the_Best_SimilarTech_Alternative\"><\/span><span class=\"ez-toc-section\" id=\"Why_PredictLeads_Is_the_Best_SimilarTech_Alternative\"><\/span>Why PredictLeads Is the Best SimilarTech Alternative<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>A traffic-ranked crawl answers who uses a tool today. Teams replacing SimilarTech usually need three more answers: whether a company uses the tool at all, including behind its public website, when that evidence first appeared, and what else is happening at the account. PredictLeads answers all three from one self-serve API.<\/p>\n\n<figure style=\"margin:28px 0;\">\n<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 960 400\" width=\"100%\" role=\"img\" aria-labelledby=\"stFlowTitle stFlowDesc\" style=\"max-width:960px;height:auto;display:block;font-family:'Poppins','Segoe UI',system-ui,sans-serif;\">\n<title id=\"stFlowTitle\">Two ways to prioritize technology adopters<\/title>\n<desc id=\"stFlowDesc\">Diagram comparing two approaches. Left panel: a website crawl and traffic rank approach, showing CMS, analytics, and ad pixels detected on a page, feeding a bar chart of sites ranked by audience size, with no published first-seen or last-seen dates and no job-posting or funding context. Right panel: five evidence sources, script tags, DNS records, IP ranges, cookies, and job descriptions, feeding one PredictLeads Technology Detection record with first_seen_at, last_seen_at, source_count, and behind_firewall fields, answering which companies show evidence, since when, corroborated by how many sources, and whether they are hiring or funded right now.<\/desc>\n<rect x=\"0\" y=\"0\" width=\"960\" height=\"400\" rx=\"18\" fill=\"#f3ecf8\"><\/rect>\n<text x=\"40\" y=\"46\" font-size=\"22\" font-weight=\"800\" font-style=\"italic\" fill=\"#76508e\">Two ways to prioritize technology adopters<\/text>\n<rect x=\"40\" y=\"70\" width=\"410\" height=\"300\" rx=\"16\" fill=\"#ffffff\" stroke=\"#ece0f5\" stroke-width=\"2\"><\/rect>\n<rect x=\"40\" y=\"70\" width=\"410\" height=\"42\" rx=\"16\" fill=\"#9a78b0\"><\/rect>\n<rect x=\"40\" y=\"96\" width=\"410\" height=\"16\" fill=\"#9a78b0\"><\/rect>\n<text x=\"245\" y=\"97\" text-anchor=\"middle\" font-size=\"15\" font-weight=\"800\" fill=\"#ffffff\">Website crawl + traffic rank<\/text>\n<rect x=\"64\" y=\"130\" width=\"362\" height=\"40\" rx=\"20\" fill=\"#efe4f6\"><\/rect>\n<text x=\"245\" y=\"155\" text-anchor=\"middle\" font-size=\"13\" font-weight=\"700\" fill=\"#5b3d70\">CMS, analytics, ad pixels detected on the page<\/text>\n<text x=\"64\" y=\"200\" font-size=\"13\" font-weight=\"700\" fill=\"#3a2f4d\">Ranked by audience size:<\/text>\n<rect x=\"64\" y=\"212\" width=\"320\" height=\"18\" rx=\"4\" fill=\"#b79fcb\"><\/rect>\n<rect x=\"64\" y=\"236\" width=\"220\" height=\"18\" rx=\"4\" fill=\"#b79fcb\"><\/rect>\n<rect x=\"64\" y=\"260\" width=\"140\" height=\"18\" rx=\"4\" fill=\"#b79fcb\"><\/rect>\n<text x=\"64\" y=\"300\" font-size=\"12\" font-weight=\"600\" fill=\"#4a3159\">Answers: which high-traffic sites run this tool today?<\/text>\n<text x=\"64\" y=\"322\" font-size=\"12\" font-weight=\"600\" fill=\"#4a3159\">No published first-seen or last-seen dates.<\/text>\n<text x=\"64\" y=\"344\" font-size=\"12\" font-weight=\"600\" fill=\"#4a3159\">No job-posting or funding context.<\/text>\n<rect x=\"510\" y=\"70\" width=\"410\" height=\"300\" rx=\"16\" fill=\"#ffffff\" stroke=\"#76508e\" stroke-width=\"2\"><\/rect>\n<rect x=\"510\" y=\"70\" width=\"410\" height=\"42\" rx=\"16\" fill=\"#76508e\"><\/rect>\n<rect x=\"510\" y=\"96\" width=\"410\" height=\"16\" fill=\"#76508e\"><\/rect>\n<text x=\"715\" y=\"97\" text-anchor=\"middle\" font-size=\"15\" font-weight=\"800\" fill=\"#ffffff\">Five-source evidence + timestamps<\/text>\n<g font-family=\"'Poppins','Segoe UI',system-ui,sans-serif\" font-size=\"12\" font-weight=\"700\" fill=\"#3a2f4d\">\n<rect x=\"530\" y=\"122\" width=\"110\" height=\"28\" rx=\"14\" fill=\"#efe4f6\"><\/rect>\n<text x=\"585\" y=\"140\" text-anchor=\"middle\">Scripts<\/text>\n<rect x=\"648\" y=\"122\" width=\"100\" height=\"28\" rx=\"14\" fill=\"#efe4f6\"><\/rect>\n<text x=\"698\" y=\"140\" text-anchor=\"middle\">DNS<\/text>\n<rect x=\"756\" y=\"122\" width=\"110\" height=\"28\" rx=\"14\" fill=\"#efe4f6\"><\/rect>\n<text x=\"811\" y=\"140\" text-anchor=\"middle\">IP ranges<\/text>\n<rect x=\"530\" y=\"156\" width=\"110\" height=\"28\" rx=\"14\" fill=\"#efe4f6\"><\/rect>\n<text x=\"585\" y=\"174\" text-anchor=\"middle\">Cookies<\/text>\n<rect x=\"648\" y=\"156\" width=\"218\" height=\"28\" rx=\"14\" fill=\"#76508e\"><\/rect>\n<text x=\"757\" y=\"174\" text-anchor=\"middle\" fill=\"#ffffff\">Job descriptions<\/text>\n<\/g>\n<rect x=\"530\" y=\"198\" width=\"360\" height=\"100\" rx=\"12\" fill=\"#f3ecf8\" stroke=\"#ece0f5\" stroke-width=\"1.5\"><\/rect>\n<g font-family=\"Consolas,'Courier New',monospace\" font-size=\"13\" font-weight=\"700\" fill=\"#3a2f4d\">\n<text x=\"546\" y=\"222\">first_seen_at \/ last_seen_at<\/text>\n<text x=\"546\" y=\"246\">source_count<\/text>\n<text x=\"546\" y=\"270\">behind_firewall: true | false<\/text>\n<\/g>\n<text x=\"530\" y=\"322\" font-size=\"12\" font-weight=\"600\" fill=\"#4a3159\">Answers: which companies show evidence, since when,<\/text>\n<text x=\"530\" y=\"344\" font-size=\"12\" font-weight=\"600\" fill=\"#4a3159\">corroborated by how many sources, and are they also<\/text>\n<text x=\"530\" y=\"366\" font-size=\"12\" font-weight=\"600\" fill=\"#4a3159\">hiring or funded right now?<\/text>\n<\/svg>\n<figcaption style=\"font-size:13px;color:#5b3d70;margin-top:8px;\">A traffic-ranked crawl answers who uses a tool today. Timestamped, multi-source evidence answers when, how certain, and what else is changing.<\/figcaption>\n<\/figure>\n\n<h3><span class=\"ez-toc-section\" id=\"A_Worked_Example\"><\/span><span class=\"ez-toc-section\" id=\"A_Worked_Example\"><\/span>A Worked Example<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Say you are mapping which companies use a competitor\u2019s analytics platform and might be ready to switch. A traffic-ranked list can start the search, but it stops there.<\/p>\n<ol class=\"list-decimal pl-6 space-y-1\"><li class=\"list-item\">Pull Technology Detections for the competitor\u2019s tag through the <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/docs.predictleads.com\/swagger\">technology discovery endpoint<\/a>. Keep records backed by more than one source (<code spellcheck=\"false\">source_count<\/code>).<\/li><li class=\"list-item\">Check whether the same accounts have active Job Openings naming your category as a required skill, using O*NET codes.<\/li><li class=\"list-item\">Layer on News Events such as <code spellcheck=\"false\">receives_financing<\/code> or <code spellcheck=\"false\">launches<\/code> to time the outreach.<\/li><\/ol><p>All three filters query the same company domain with one API key, which is what our guide to <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/find-companies-using-technology\/\">finding every company using a technology<\/a> walks through.<\/p><h3><span class=\"ez-toc-section\" id=\"Built_for_Data_Builders_and_AI_Agents\"><\/span><span class=\"ez-toc-section\" id=\"Built_for_Data_Builders_and_AI_Agents\"><\/span>Built for Data Builders and AI Agents<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>PredictLeads delivers its datasets four ways: the API for real-time lookups, flat files (typically JSONL via AWS S3, Google Cloud Storage, or SFTP) for warehouse loads, webhooks that push new detections for followed companies, and an MCP server at mcp.predictleads.com for AI agents. Our <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/company-data-api-flat-files-webhooks-mcp\/\">API, flat files, webhooks, and MCP comparison<\/a> covers which method fits which workflow, and the full detection method is in our breakdown of <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/technographic-data-collection-methods\/\">how technographic data is collected<\/a>.<\/p><p>Job openings refresh approximately every 36 hours, and high-traffic websites are crawled multiple times daily. PredictLeads is SOC 2 Type II certified, GDPR and CCPA compliant, and collects only publicly available information. Teams at Clay, Instantly, Common Room, and FactSet use PredictLeads data. For the detection-accuracy side of these claims, see our guide to <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/technographic-data-accuracy\/\">what providers get wrong about accuracy<\/a>.<\/p><h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<h3><span class=\"ez-toc-section\" id=\"Is_SimilarTech_free_to_use\"><\/span>Is SimilarTech free to use?<span class=\"ez-toc-section-end\"><\/span><\/h3><p>No. SimilarTech is sold as part of Similarweb\u2019s enterprise Sales Intelligence suite instead of as a standalone, self-serve product, so public pricing is limited. Accessing it typically starts with a Similarweb sales conversation instead of a self-serve signup.<\/p><h3><span class=\"ez-toc-section\" id=\"What_is_the_best_free_alternative_to_SimilarTech\"><\/span>What is the best free alternative to SimilarTech?<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Wappalyzer offers a free plan with a capped number of monthly lookups, plus lead lists and website alerts, which suits occasional single-site checks. BuiltWith also supports single-domain lookups at no cost, though its bulk lead lists and API access sit behind a paid tier.<\/p><h3><span class=\"ez-toc-section\" id=\"Can_SimilarTech_detect_backend_or_internal_technologies\"><\/span>Can SimilarTech detect backend or internal technologies?<span class=\"ez-toc-section-end\"><\/span><\/h3><p>SimilarTech\u2019s documented method is built around a website crawl, so it shares the core limitation of every browser- and crawler-based scanner. A tool that never shows up in a site\u2019s public code, such as a data warehouse or an internal ERP system, falls outside what it can see.<\/p><h3><span class=\"ez-toc-section\" id=\"Which_SimilarTech_alternative_offers_the_most_detection_sources\"><\/span>Which SimilarTech alternative offers the most detection sources?<span class=\"ez-toc-section-end\"><\/span><\/h3><p>PredictLeads detects technologies from five sources, including job descriptions, script tags, DNS records, IP ranges, and cookies, while most other alternatives in this comparison cover only one or two evidence types. The <code spellcheck=\"false\">behind_firewall<\/code> field separates page-level detections from evidence found outside the public website.<\/p><h3><span class=\"ez-toc-section\" id=\"How_is_PredictLeads_priced_compared_to_SimilarTech\"><\/span>How is PredictLeads priced compared to SimilarTech?<span class=\"ez-toc-section-end\"><\/span><\/h3><p>PredictLeads publishes self-serve, pay-as-you-go API pricing and gives new accounts 100 free API requests per month to test Technology Detections before paying. SimilarTech, by contrast, is bundled inside Similarweb\u2019s enterprise Sales Intelligence suite without a public rate card.<\/p><h3><span class=\"ez-toc-section\" id=\"What_is_the_best_API_for_detecting_technology_churn_when_a_company_drops_a_vendor\"><\/span>What is the best API for detecting technology churn, when a company drops a vendor?<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Look at timestamps and source corroboration, not a single missing detection. Each PredictLeads Technology Detections record includes a <code spellcheck=\"false\">first_seen_at<\/code> date, a <code spellcheck=\"false\">last_seen_at<\/code> date, and a <code spellcheck=\"false\">source_count<\/code> field that shows how many independent sources, among script tags, DNS records, IP ranges, cookies, and job descriptions, back the result. A technology with no detection since a given date is not confirmation that a company dropped it, since script changes, recrawl gaps, and signature changes can produce the same pattern. Treat a gap that holds across multiple sources, paired with a new technology&#8217;s <code spellcheck=\"false\">first_seen_at<\/code> date on the same domain, as stronger evidence of an actual vendor switch.<\/p><h2><span class=\"ez-toc-section\" id=\"Ready_to_see_this_in_your_own_data\"><\/span><span class=\"ez-toc-section\" id=\"Ready_to_see_this_in_your_own_data\"><\/span>Ready to see this in your own data?<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Get 100 free API requests per month with no credit card and no sales call.<\/p><p><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/sign_up\"><strong>Create your free account<\/strong><\/a><\/p><h2><span class=\"ez-toc-section\" id=\"Final_Thoughts_on_Choosing_a_SimilarTech_Alternative\"><\/span><span class=\"ez-toc-section\" id=\"Final_Thoughts_on_Choosing_a_SimilarTech_Alternative\"><\/span>Final Thoughts on Choosing a SimilarTech Alternative<span class=\"ez-toc-section-end\"><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>Stay with SimilarTech if your job is sizing a technology\u2019s reach by website traffic and you already pay for Similarweb\u2019s broader suite. Move to a multi-source provider when you need any of three things: evidence of backend tools a website crawl cannot see, a dated record of when each technology first appeared, or technology, hiring, and funding signals joined on one company domain. If you are also comparing browser-based scanners, our guides to <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/best-builtwith-alternatives\/\">BuiltWith alternatives<\/a> and <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/\">Wappalyzer alternatives<\/a> cover that side, and our <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/theirstack-alternatives\/\">TheirStack alternatives<\/a> guide covers the job-posting side. To compare on your own accounts, <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/sign_up\">create a free PredictLeads account<\/a> and run your current SimilarTech list through Technology Detections.<\/p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"BlogPosting\",\n  \"headline\": \"Best SimilarTech Alternatives for Website Technology Detection (October 2026)\",\n  \"description\": \"Best SimilarTech alternatives for October 2026: website technology detection tools compared for GTM teams, led by 2B+ detections across 99M+ companies.\",\n  \"datePublished\": \"2026-06-30\",\n  \"dateModified\": \"2026-10-21\",\n  \"author\": {\n    \"@type\": \"Organization\",\n    \"name\": \"PredictLeads\",\n    \"url\": \"https:\/\/predictleads.com\"\n  },\n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"PredictLeads\",\n    \"url\": \"https:\/\/predictleads.com\"\n  },\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/predictleads.com\/blog\/similartech-alternatives\/\"\n  },\n  \"url\": \"https:\/\/predictleads.com\/blog\/similartech-alternatives\/\",\n  \"wordCount\": 2650,\n  \"keywords\": [\n    \"similartech alternatives\",\n    \"similartech alternative\",\n    \"similartech vs builtwith\",\n    \"website technology detection\",\n    \"technographic data for marketing teams\",\n    \"technology detection api\",\n    \"builtwith alternatives\",\n    \"wappalyzer alternatives\",\n    \"behind the firewall technology detection\",\n    \"PredictLeads\"\n  ]\n}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the best SimilarTech alternative in October 2026?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"PredictLeads is the strongest overall SimilarTech alternative for teams that need technology evidence delivered through a self-serve API rather than a bundled enterprise seat. It detects technologies from five sources, including job descriptions that a website crawl cannot see, across 240,000+ technologies and 99M+ companies. Technology Detections also carry first_seen_at and last_seen_at timestamps and sit next to Job Openings, News Events, and Financing Events in the same API. Teams that only need traffic-weighted lead lists for marketing research may still find SimilarTech or BuiltWith sufficient.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does SimilarTech detect backend or infrastructure technologies, or only front-end website tools?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Public coverage of SimilarTech describes a website crawl that reads a site's public code, which surfaces front-end and marketing tools such as analytics, ad pixels, and content management systems. Tools that never render in page code, such as a data warehouse or an internal ERP system, fall outside that method. PredictLeads closes that gap with job-description evidence, flagged by the behind_firewall field, alongside script tags, DNS records, IP ranges, and cookies. The source_count field shows how many of those sources agree on a given detection.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I get SimilarTech-style technology alerts without an enterprise Similarweb contract?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"SimilarTech is sold as part of Similarweb's enterprise Sales Intelligence suite rather than as a standalone, self-serve product with public pricing. PredictLeads publishes pay-as-you-go API pricing and gives new accounts 100 free API requests per month to test Technology Detections before paying. Webhooks can then push new detections for the companies you follow, which functions like a stack-change alert without an enterprise contract. Flat files and an MCP server are also available for teams that want the data in a warehouse or an AI agent.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How is PredictLeads different from SimilarTech and BuiltWith?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"SimilarTech and BuiltWith both detect technologies through a website crawl and sell lead lists built on top of that index, with SimilarTech adding Similarweb's traffic and geographic context. PredictLeads reads the same public web but adds DNS records, IP ranges, cookies, and job descriptions, so backend tools that never load on a page still show up in Technology Detections. Every PredictLeads record carries first_seen_at, last_seen_at, and source_count, and the data ships through API, flat files, webhooks, and MCP instead of a web app alone. PredictLeads also pairs detections with Job Openings, News Events, and Financing Events in the same API.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Which SimilarTech alternative works best for marketing and competitive intelligence teams?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For sizing a technology's adoption by audience, SimilarTech and BuiltWith both weight or rank results using website-level data, which suits top-of-funnel market research. For account-level prioritization, such as flagging which specific companies adopted a tool recently and are also hiring or raising funds, PredictLeads pairs 2B+ technology detections since 2018 with Job Openings and Financing Events in the same API. Competitive intelligence teams that need both views in many cases run a traffic-based tool for market sizing and PredictLeads for account-level signals. Similar Companies, covering 18.9M+ companies with written similarity reasons, can also help build a comparable set around a tracked competitor.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does the behind_firewall field mean in PredictLeads Technology Detections?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"behind_firewall is a boolean on each Technology Detection showing whether the evidence came from outside the public website. A value of false means the technology was detected through website JavaScript or HTML tags, the same layer a crawler like SimilarTech's reads. A value of true means the evidence came from another source, such as a job description, which raises match rates for enterprise tools such as Salesforce, Snowflake, and HubSpot that rarely appear in page code.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How should I interpret a technology that is no longer detected by a website scanner?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A missing detection does not prove a company stopped using a tool. Script changes, recrawl gaps, and signature updates can all produce the same gap in a website-based scan. PredictLeads keeps the last_seen_at date on every detection, so you can describe a technology as no longer detected since a specific date rather than assume a cancellation. A new job posting naming a replacement tool is stronger supporting evidence of a possible transition, not confirmation.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does PredictLeads provide website traffic data like SimilarTech does?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. PredictLeads is a company intelligence and technographic data provider, and it does not publish website traffic, audience, or geographic reach data the way Similarweb and SimilarTech do. It focuses on structured signals such as Technology Detections, Job Openings, News Events, and Financing Events. Teams that need both traffic context and multi-source technology evidence typically keep a dedicated analytics tool alongside PredictLeads.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I find companies using a specific technology with the PredictLeads API?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Call GET \/discover\/technologies\/{technology_id_or_fuzzy_name}\/technology_detections with a technology name such as Snowflake or HubSpot, and results return ordered by first_seen_at, newest first. Discovery endpoints typically cost 1 credit per record returned, and you authenticate with the X-Api-Key and X-Api-Token headers. Full parameters are documented at docs.predictleads.com.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How fresh is PredictLeads Technology Detections data in 2026?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"High-traffic websites are crawled multiple times daily, and job openings refresh approximately every 36 hours. Every Technology Detection carries first_seen_at and last_seen_at, so you can see exactly when evidence first appeared and when it was last observed. Webhooks deliver new detections for followed companies as they are found, and flat-file exports run on scheduled cadences.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I access PredictLeads data as flat files or webhooks instead of API calls?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Flat files, typically delivered as JSONL to AWS S3, Google Cloud Storage, or SFTP, are arranged through the PredictLeads sales team and suit warehouse loads into Snowflake or BigQuery and backfills. Webhooks push new Technology Detections and Job Openings for the companies you follow as they are detected. The REST API remains self-serve with an API key and token for real-time lookups.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Which SimilarTech alternative supports AI agents through MCP?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"PredictLeads offers an MCP server at mcp.predictleads.com, so AI clients such as Cursor can query Technology Detections, Job Openings, News Events, and Financing Events in natural language using the same API credentials. An agent can ask which companies show evidence of a technology and are also hiring for a related role, then check recent funding for the same accounts. Setup takes an API key and token, documented at docs.predictleads.com\/mcp_integration\/introduction.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many technologies does PredictLeads track in 2026?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"PredictLeads tracks 240,000+ technologies in its Technologies catalog. Technology Detections, the dataset that links technologies to companies, holds 2B+ detections since 2018 across 99M+ companies. Each technology record includes categories, parent categories, and pricing_data where available, which supports spend-based account prioritization.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is PredictLeads SOC 2 and GDPR compliant?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. PredictLeads is SOC 2 Type II certified and is GDPR and CCPA compliant. 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[2],"tags":[36,34],"class_list":["post-1493","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-company","tag-data","tag-predictleads"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.8 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>SimilarTech Alternatives | PredictLeads<\/title>\n<meta name=\"description\" content=\"See how PredictLeads stacks up against SimilarTech and other technographic data providers in this October 2026 buyer&#039;s comparison.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SimilarTech Alternatives: November 2026 Picks\" \/>\n<meta property=\"og:description\" content=\"See how PredictLeads stacks up against SimilarTech and other technographic data providers in this October 2026 buyer&#039;s comparison.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/\" \/>\n<meta property=\"og:site_name\" content=\"PredictLeads\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-30T13:10:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-11-02T20:14:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/predictleads.com\/blog\/wp-content\/uploads\/2026\/10\/PredictLeads-4.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta 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