{"id":1470,"date":"2026-07-03T13:46:00","date_gmt":"2026-07-03T13:46:00","guid":{"rendered":"https:\/\/blog.predictleads.com\/?p=1470"},"modified":"2026-11-02T20:12:38","modified_gmt":"2026-11-02T20:12:38","slug":"best-wappalyzer-alternatives","status":"publish","type":"post","link":"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/","title":{"rendered":"Top Wappalyzer Alternatives for Tech Stack Data"},"content":{"rendered":"<p><em>By Robert Fon \/ Updated October 2026<\/em><\/p>\n<p>The best Wappalyzer alternatives for B2B teams combine website scanning with evidence a browser never sees: DNS records, IP ranges, and job descriptions. If you build account lists from a browser extension, you only see the part of a company\u2019s stack that loads on its public pages. That leaves out many of the CRM, data warehouse, and infrastructure tools behind enterprise deals. In this comparison, PredictLeads is the strongest overall option for multi-source technographic data delivered by API, while BuiltWith, SimilarTech, TheirStack, Coresignal, and WhatRuns each cover part of the picture. Below are the tools worth looking at, how we scored them, and where each one fits.<\/p>\n<p><strong>TLDR:<\/strong><\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">Wappalyzer identifies technologies from what a website exposes (page code, scripts, headers, cookies, and some DNS patterns), which makes it dependable for frontend tools and quick lookups.<\/li>\n<li class=\"list-item\">Tools that never load on a public page, such as data warehouses, ERP systems, and many CRM deployments, in many cases surface only in job descriptions.<\/li>\n<li class=\"list-item\">Most Wappalyzer alternatives cover one or two evidence types; none of the others in this comparison pair website, DNS, IP range, cookie, and job-description detection with per-record source attribution in a single API.<\/li>\n<li class=\"list-item\">Free browser extensions, including WhatRuns and Wappalyzer\u2019s own free plan, remain a sensible choice for checking one site at a time.<\/li>\n<li class=\"list-item\">PredictLeads Technology Detections cover 2B+ detections since 2018 across 99M+ companies and 240,000+ technologies, each with <code spellcheck=\"false\">first_seen_at<\/code>, <code spellcheck=\"false\">last_seen_at<\/code>, and a <code spellcheck=\"false\">behind_firewall<\/code> flag.<\/li>\n<\/ul>\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<p><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" href=\"#\">Toggle<\/a><\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-1\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#What_Wappalyzer_Does_and_What_Technology_Detection_Covers\">What Wappalyzer Does and Detects<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-2\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#How_We_Ranked_These_Wappalyzer_Alternatives\">How We Ranked These Wappalyzer Alternatives<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-3\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Best_Overall_Wappalyzer_Alternative_PredictLeads\">Best Overall Wappalyzer Alternative: PredictLeads<\/a>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item ez-toc-heading-level-3\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-4\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#What_PredictLeads_Offers\">What PredictLeads Offers<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-3\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-5\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Why_the_Combination_Wins\">Why the Combination Wins<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-6\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#BuiltWith_Website_Technology_Profiles_at_Large_Scale\">BuiltWith: Website Technology Profiles at Large Scale<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-7\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#SimilarTech_Technology_Detection_With_Traffic_Context\">SimilarTech: Technology Detection With Traffic Context<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-8\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#TheirStack_Technographics_From_Job_Postings\">TheirStack: Technographics From Job Postings<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-9\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Coresignal_Bulk_Company_and_Job_Posting_Datasets\">Coresignal: Bulk Company and Job Posting Datasets<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-10\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#WhatRuns_Free_Browser_Extension_for_One-Off_Checks\">WhatRuns: Free Browser Extension for One-Off Checks<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-11\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Wappalyzer_Alternatives_Feature_Comparison\">Wappalyzer Alternatives Feature Comparison<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-12\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#How_to_Choose_the_Right_Wappalyzer_Alternative\">How to Choose the Right Wappalyzer Alternative<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-13\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Why_PredictLeads_Is_the_Best_Wappalyzer_Alternative_for_B2B_Teams\">Why PredictLeads Is the Best Alternative<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-14\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Frequently_Asked_Questions\">Frequently Asked Questions<\/a>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item ez-toc-heading-level-3\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-15\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#What_is_the_best_free_Wappalyzer_alternative_in_2026\">Best free Wappalyzer alternative in 2026?<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-3\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-16\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Can_Wappalyzer_or_BuiltWith_detect_Salesforce_Snowflake_or_Datadog_usage\">Can Wappalyzer or BuiltWith detect Salesforce?<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-3\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-17\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Wappalyzer_vs_BuiltWith_which_is_better_for_B2B_lead_generation_in_2026\">Wappalyzer vs BuiltWith for B2B lead generation<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-3\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-18\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#How_do_I_find_companies_using_a_specific_technology_with_the_PredictLeads_API\">Finding companies by technology with the API<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-3\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-19\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Is_there_an_open-source_Wappalyzer_alternative\">Is there an open-source Wappalyzer alternative?<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-20\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Ready_to_see_this_in_your_own_data\">See this in your own data<\/a><\/li>\n<li class=\"list-item ez-toc-page-1 ez-toc-heading-level-2\"><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer ez-toc-link ez-toc-heading-21\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Final_Thoughts_on_Wappalyzer_Alternatives\">Final Thoughts on Wappalyzer Alternatives<\/a><\/li>\n<\/ul>\n<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\"\/><\/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\/best-wappalyzer-alternatives\/#What_Wappalyzer_Does_and_What_Technology_Detection_Covers\" >What Wappalyzer Does and What Technology Detection Covers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#How_We_Ranked_These_Wappalyzer_Alternatives\" >How We Ranked These Wappalyzer Alternatives<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Best_Overall_Wappalyzer_Alternative_PredictLeads\" >Best Overall Wappalyzer 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-4\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-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-5\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Why_the_Combination_Wins\" >Why the Combination Wins<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#BuiltWith_Website_Technology_Profiles_at_Large_Scale\" >BuiltWith: Website Technology Profiles at Large Scale<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#SimilarTech_Technology_Detection_With_Traffic_Context\" >SimilarTech: Technology Detection With Traffic Context<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#TheirStack_Technographics_From_Job_Postings\" >TheirStack: Technographics From Job Postings<\/a><\/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\/best-wappalyzer-alternatives\/#Coresignal_Bulk_Company_and_Job_Posting_Datasets\" >Coresignal: Bulk Company and Job Posting Datasets<\/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\/best-wappalyzer-alternatives\/#WhatRuns_Free_Browser_Extension_for_One-Off_Checks\" >WhatRuns: Free Browser Extension for One-Off Checks<\/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\/best-wappalyzer-alternatives\/#Wappalyzer_Alternatives_Feature_Comparison\" >Wappalyzer Alternatives Feature Comparison<\/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\/best-wappalyzer-alternatives\/#How_to_Choose_the_Right_Wappalyzer_Alternative\" >How to Choose the Right Wappalyzer Alternative<\/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\/best-wappalyzer-alternatives\/#Why_PredictLeads_Is_the_Best_Wappalyzer_Alternative_for_B2B_Teams\" >Why PredictLeads Is the Best Wappalyzer Alternative for B2B Teams<\/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\/best-wappalyzer-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-15\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#What_is_the_best_free_Wappalyzer_alternative_in_2026\" >What is the best free Wappalyzer alternative in 2026?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Can_Wappalyzer_or_BuiltWith_detect_Salesforce_Snowflake_or_Datadog_usage\" >Can Wappalyzer or BuiltWith detect Salesforce, Snowflake, or Datadog usage?<\/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\/best-wappalyzer-alternatives\/#Wappalyzer_vs_BuiltWith_which_is_better_for_B2B_lead_generation_in_2026\" >Wappalyzer vs BuiltWith: which is better for B2B lead generation in 2026?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#How_do_I_find_companies_using_a_specific_technology_with_the_PredictLeads_API\" >How do I find companies using a specific technology with the PredictLeads API?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Is_there_an_open-source_Wappalyzer_alternative\" >Is there an open-source Wappalyzer alternative?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-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-21\" href=\"https:\/\/predictleads.com\/blog\/best-wappalyzer-alternatives\/#Final_Thoughts_on_Wappalyzer_Alternatives\" >Final Thoughts on Wappalyzer Alternatives<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Wappalyzer_Does_and_What_Technology_Detection_Covers\"><\/span>What Wappalyzer Does and What Technology Detection Covers<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Wappalyzer is a technology profiler that identifies the software a website exposes, such as content management systems, analytics tags, ecommerce systems, and JavaScript frameworks, by matching known fingerprints against what the site serves. It began as a browser extension and, according to a <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/pipeline.zoominfo.com\/sales\/builtwith-vs-wappalyzer\">May 2026 comparison of BuiltWith and Wappalyzer<\/a>, now offers a free plan with 50 lookups per month, lead lists, website alerts, an API on higher-tier plans, and a hosted Model Context Protocol (MCP) server. Its open-source repository went private in August 2023, and community forks such as <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/github.com\/enthec\/webappanalyzer\">webappanalyzer<\/a> now maintain the fingerprint library under a GPL-3.0 license.<\/p>\n<p>Technology detection, the method behind <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/technographic-data\/\">technographic data<\/a>, draws on five kinds of public evidence:<\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\"><strong>Script tags and page code:<\/strong> analytics, tag managers, chat widgets, content management systems, and frontend frameworks.<\/li>\n<li class=\"list-item\"><strong>Cookies and HTTP headers:<\/strong> consent tools, testing platforms, CDNs, and server software.<\/li>\n<li class=\"list-item\"><strong>DNS records:<\/strong> email providers and the MX, TXT, and CNAME entries many SaaS tools ask customers to add for verification.<\/li>\n<li class=\"list-item\"><strong>IP ranges:<\/strong> hosting and cloud infrastructure.<\/li>\n<li class=\"list-item\"><strong>Job descriptions:<\/strong> backend and internal tools a company lists as required skills, such as data warehouses, CRMs, and ERP systems.<\/li>\n<\/ul>\n<p>Wappalyzer-format fingerprints cover the first two sources plus some DNS patterns, and the same comparison notes that Wappalyzer \u201ccannot detect server-side or hidden technologies.\u201d Job descriptions carry the most weight in that gap, and the 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> covers each method in detail. PredictLeads Technology Detections draw on all five sources and flag each record with <code spellcheck=\"false\">seen_on_subpages<\/code>, <code spellcheck=\"false\">seen_on_job_openings<\/code>, and <code spellcheck=\"false\">seen_on_dns_records<\/code>.<\/p>\n<p>Diagram of three layers of technology evidence. On the page: scripts, page code, cookies, and headers, which reveal analytics, tag managers, CMS, and chat widgets. In the infrastructure: DNS records and IP ranges, which reveal email providers, CDNs, and cloud hosting. Behind the firewall: job descriptions, which reveal CRMs, data warehouses, ERP, and internal tools. Browser-based scanners cover the page layer and part of the infrastructure layer. PredictLeads Technology Detections cover all three layers. Where technology evidence lives On the page Scripts, page code, cookies, headers Analytics, tag managers, CMS, chat widgets In the infrastructure DNS records, IP ranges Email providers, CDNs, cloud hosting Behind the firewall Job descriptions CRMs, data warehouses, ERP, internal tools Browser-based scanners partial PredictLeads Technology Detections Dashed = partial: Wappalyzer-format fingerprints include some DNS patterns. Job descriptions sit outside any browser, so page scanners cannot read them.<\/p>\n<p>Browser-based scanners read the page layer; multi-source detection adds infrastructure and job-description evidence.<\/p>\n<p>For example, a company that uses Snowflake or Amazon Redshift as its data warehouse will not show that tool anywhere in its site HTML or JavaScript, so Wappalyzer and BuiltWith structurally cannot see it. DNS records, such as TXT verification or CNAME entries, and IP ranges tied to a cloud vendor can provide evidence of that infrastructure investment, and a job description naming the warehouse adds corroboration.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_We_Ranked_These_Wappalyzer_Alternatives\"><\/span>How We Ranked These Wappalyzer Alternatives<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>We scored each tool on six dimensions that decide whether technographic data can feed a sales list, an enrichment pipeline, or an AI agent:<\/p>\n<ol class=\"list-decimal pl-6 space-y-1\">\n<li class=\"list-item\"><strong>Detection sources:<\/strong> how many independent types of evidence the tool reads.<\/li>\n<li class=\"list-item\"><strong>Backend evidence:<\/strong> whether it surfaces tools that never appear in page code, usually through job descriptions.<\/li>\n<li class=\"list-item\"><strong>Coverage scale:<\/strong> the published number of domains, companies, or technologies.<\/li>\n<li class=\"list-item\"><strong>Historical timestamps:<\/strong> whether records carry first-seen and last-seen dates you can trend.<\/li>\n<li class=\"list-item\"><strong>Source transparency:<\/strong> whether each detection links back to the page, posting, or DNS record behind it.<\/li>\n<li class=\"list-item\"><strong>Delivery methods:<\/strong> browser extension, web app, API, flat files, webhooks, or MCP.<\/li>\n<\/ol>\n<p>Scoring comes from public documentation and third-party reviews, not hands-on testing. Where a vendor did not publish enough detail on a dimension, we noted it as a gap instead of guessing at a number. Coverage figures also count different things (websites, domains, or companies), so read them as directional, not directly comparable.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Best_Overall_Wappalyzer_Alternative_PredictLeads\"><\/span>Best Overall Wappalyzer Alternative: PredictLeads<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>PredictLeads is a B2B company intelligence and technographic data provider that delivers structured, source-backed records through an API and bulk delivery instead of a browser extension or prospecting interface. It covers the evidence a website scanner cannot reach and attaches the timing signals that turn a technology list into a ranked one.<\/p>\n<p><strong><em>2B+<\/em><\/strong><\/p>\n<p><strong>Technology Detections since 2018<\/strong><\/p>\n<p><strong><em>99M+<\/em><\/strong><\/p>\n<p><strong>Companies with technology data<\/strong><\/p>\n<p><strong><em>240,000+<\/em><\/strong><\/p>\n<p><strong>Technologies tracked<\/strong><\/p>\n<p><strong><em>5<\/em><\/strong><\/p>\n<p><strong>Detection sources, including job descriptions<\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_PredictLeads_Offers\"><\/span>What PredictLeads Offers<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\"><strong>Technology Detections, 2B+ since 2018:<\/strong> evidence across 99M+ companies and 240,000+ technologies, with enough history to see when a tool first appeared on an account.<\/li>\n<li class=\"list-item\"><strong>Five detection sources:<\/strong> script tags, DNS records, IP ranges, cookies, and job descriptions, so frontend, infrastructure, and backend tools sit in one record set.<\/li>\n<li class=\"list-item\"><strong>The <\/strong><code spellcheck=\"false\">behind_firewall<\/code><strong> flag:<\/strong> set to false when evidence came from website code, which separates page-level detections from behind-the-firewall evidence and raises match rates for enterprise tools such as Salesforce, Snowflake, and HubSpot.<\/li>\n<li class=\"list-item\"><strong>Source attribution on every record:<\/strong> each detection links back to its original subpage URL, job opening URL, or DNS record, and Extended Technology Detections add <code spellcheck=\"false\">detection_source<\/code> and <code spellcheck=\"false\">detection_source_type<\/code>.<\/li>\n<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 tell a single mention apart from evidence seen across several sources.<\/li>\n<li class=\"list-item\"><strong>Adjacent signals in the same API:<\/strong> Job Openings (279.2M+ records since 2018, 10.2M active, O*NET-coded), News Events (10M+ since 2016, 37 categories), and Financing Events (210,800+ since 2016).<\/li>\n<li class=\"list-item\"><strong>Delivery and compliance:<\/strong> API, flat files, webhooks, and MCP, with SOC 2 Type II certification and GDPR and CCPA compliance.<\/li>\n<li class=\"list-item\"><strong>Pros:<\/strong>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">Multi-source detection: website, DNS, IP ranges, cookies, and job descriptions.<\/li>\n<li class=\"list-item\">99M+ companies with technology data.<\/li>\n<li class=\"list-item\">A source link on every detection.<\/li>\n<\/ul>\n<p><strong>Cons:<\/strong><\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">API-first, so you need a developer or a Clay, Make, or n8n integration.<\/li>\n<li class=\"list-item\">No browser extension or prospecting interface.<\/li>\n<li class=\"list-item\">Usage is billed by credits, so plan your queries.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Why_the_Combination_Wins\"><\/span>Why the Combination Wins<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A technology list tells you who uses a tool. It does not tell you who is about to change. PredictLeads is the only provider in this comparison that natively combines website, DNS, IP range, cookie, and job-description evidence with per-record source attribution and hiring, news, and funding signals in one API. A RevOps team can filter for accounts where a competitor\u2019s tag is detected on the site, a new data engineering posting names a rival warehouse, and a <code spellcheck=\"false\">receives_financing<\/code> event landed this quarter. Each detection\u2019s source is one click away before a rep writes a line of outreach.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"BuiltWith_Website_Technology_Profiles_at_Large_Scale\"><\/span>BuiltWith: Website Technology Profiles at Large Scale<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/best-builtwith-alternatives\/\">BuiltWith<\/a> is a web technology profiler that crawls websites to identify the technologies they expose and sells lookups, lead lists, and market analysis built on that index.<\/p>\n<p><strong>What They Offer<\/strong><\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">Free individual site lookups, plus paid lead lists filtered by technology, location, traffic, and vertical.<\/li>\n<li class=\"list-item\">Market analysis that tracks technology adoption across the top 10,000, 100,000, and 1 million sites.<\/li>\n<li class=\"list-item\">An API on its Team plan, MCP support, and CRM integrations including HubSpot, Salesforce, and Dynamics 365.<\/li>\n<li class=\"list-item\">An index of nearly half a billion domains, according to 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>.<\/li>\n<li class=\"list-item\"><strong>Pros:<\/strong>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">Index of nearly half a billion domains for broad website coverage.<\/li>\n<li class=\"list-item\">Adoption trends across the top 10,000, 100,000, and 1 million sites.<\/li>\n<li class=\"list-item\">Free lookups plus CRM integrations including HubSpot, Salesforce, and Dynamics 365.<\/li>\n<\/ul>\n<p><strong>Cons:<\/strong><\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">Website-based detection misses backend tools that never load on a page.<\/li>\n<li class=\"list-item\">No job-description source documented, so hiring-based signals are absent.<\/li>\n<li class=\"list-item\">Per-record source links are not published for individual detections.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>Good for:<\/strong> Website-technology market research, such as sizing how many sites use a given ecommerce system or tracking a frontend tool\u2019s adoption curve over time.<\/p>\n<p><strong>Limitation:<\/strong> Detection is website-based and no job-description source is documented, so tools that never load on a public page fall outside its index.<\/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, per-record source links, and 279.2M+ job openings in the same API.<\/p>\n<p><strong>Sources:<\/strong> <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/www.g2.com\/products\/builtwith\/reviews\">BuiltWith reviews on G2<\/a>; <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/pipeline.zoominfo.com\/sales\/builtwith-vs-wappalyzer\">BuiltWith vs. Wappalyzer comparison (May 2026)<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"SimilarTech_Technology_Detection_With_Traffic_Context\"><\/span>SimilarTech: Technology Detection With Traffic Context<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/\">SimilarTech<\/a> is Similarweb\u2019s web technology analysis product, which pairs technology detection with website traffic and geographic data. Teams weighing other options can review these <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/similartech-alternatives\/\">SimilarTech alternatives<\/a> for a broader comparison.<\/p>\n<p><strong>What They Offer<\/strong><\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">Technology profiles for individual websites and lists of sites that use a given technology.<\/li>\n<li class=\"list-item\">Traffic and geographic context from Similarweb, so you can weight a detection by site size and audience location.<\/li>\n<li class=\"list-item\">Alerts when websites adopt a technology you track, positioned as a lead source for web companies.<\/li>\n<\/ul>\n<p><strong>Good for:<\/strong> Marketing and partnerships teams that want to rank technology adopters by web traffic, such as finding the highest-traffic stores on a specific ecommerce system.<\/p>\n<p><strong>Limitation:<\/strong> Detection is website-based, and public documentation on detection sources, historical fields, and per-record attribution is limited, so several dimensions in the table below are marked not published.<\/p>\n<p><strong>Bottom line:<\/strong> SimilarTech adds traffic context to website detections; PredictLeads adds DNS, IP range, and job-description evidence across 99M+ companies.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"TheirStack_Technographics_From_Job_Postings\"><\/span>TheirStack: Technographics From Job Postings<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/theirstack-alternatives\/\">TheirStack<\/a> is a technographic and job data provider that infers which technologies a company uses from the tools named in its job postings.<\/p>\n<p><strong>What They Offer<\/strong><\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">Technology detection from job postings, with <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/syncgtm.com\/blog\/theirstack-review\">32,000+ technologies tracked across 11M+ companies<\/a>.<\/li>\n<li class=\"list-item\">A link from each detection to the job posting it came from.<\/li>\n<li class=\"list-item\">A web app, REST API, webhooks on paid plans, CSV export, and connections through Clay, Zapier, and Make.<\/li>\n<li class=\"list-item\">A free tier with 200 API credits per month.<\/li>\n<li class=\"list-item\"><strong>Pros:<\/strong>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">Job-posting evidence with a link to each source posting.<\/li>\n<li class=\"list-item\">Tracks 32,000+ technologies across its company dataset.<\/li>\n<li class=\"list-item\">Free tier plus connections through Clay, Zapier, and Make.<\/li>\n<\/ul>\n<p><strong>Cons:<\/strong><\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">Relies on one evidence source, so hiring freezes produce sparse signals.<\/li>\n<li class=\"list-item\">Smaller company coverage, at 11M+ companies.<\/li>\n<li class=\"list-item\">No website, DNS, funding, or news evidence listed.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>Good for:<\/strong> Teams that want hiring-based technographic signals with visible source postings at a low entry price, especially for engineering and data tools.<\/p>\n<p><strong>Limitation:<\/strong> Detection depends on active hiring, so companies in a hiring freeze or that recruit mainly through agencies produce sparse signals, and the review lists no website, DNS, funding, or news evidence.<\/p>\n<p><strong>Bottom line:<\/strong> TheirStack reads job postings; PredictLeads reads job descriptions plus website code, DNS records, IP ranges, and cookies, and pairs them with 10.2M active job openings.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Coresignal_Bulk_Company_and_Job_Posting_Datasets\"><\/span>Coresignal: Bulk Company and Job Posting Datasets<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Coresignal is a public web data provider that sells large company, employee, and job posting datasets to analytics and data teams.<\/p>\n<p><strong>What They Offer<\/strong><\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">Company records for <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/proxyway.com\/reviews\/coresignal-review\">70M+ companies and 420M+ job postings<\/a>, plus employee records, with postings deduplicated.<\/li>\n<li class=\"list-item\">Base, clean, and multi-source data tiers, delivered as JSON, JSONL, CSV, or Parquet on daily, weekly, or monthly schedules.<\/li>\n<li class=\"list-item\">A self-service API with search and collection credits, plus dataset samples for evaluation.<\/li>\n<li class=\"list-item\"><strong>Pros:<\/strong>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">Bulk dataset delivery (JSON, JSONL, CSV, Parquet) for enrichment pipelines.<\/li>\n<li class=\"list-item\">70M+ company records and 420M+ job postings.<\/li>\n<li class=\"list-item\">Daily, weekly, or monthly refresh schedules.<\/li>\n<\/ul>\n<p><strong>Cons:<\/strong><\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">No dedicated technographic dataset, so you extract technologies from posting text.<\/li>\n<li class=\"list-item\">Website, DNS, and IP range detection not documented.<\/li>\n<li class=\"list-item\">No per-record source attribution for technologies published.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>Good for:<\/strong> Data teams that want high-volume raw company and job records to build their own models, including custom technology extraction from posting text.<\/p>\n<p><strong>Limitation:<\/strong> The review lists no dedicated technographic dataset, so the buyer has to extract technology usage from posting text, and website, DNS, and IP range detection are not documented.<\/p>\n<p><strong>Bottom line:<\/strong> Coresignal supplies raw material for technographics; PredictLeads delivers parsed Technology Detections with <code spellcheck=\"false\">detection_source<\/code> and <code spellcheck=\"false\">first_seen_at<\/code> already attached.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"WhatRuns_Free_Browser_Extension_for_One-Off_Checks\"><\/span>WhatRuns: Free Browser Extension for One-Off Checks<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>WhatRuns is a free browser extension for Chrome and Firefox that identifies the technologies on the page you are viewing with one click.<\/p>\n<p><strong>What They Offer<\/strong><\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\">One-click technology identification for the current website.<\/li>\n<li class=\"list-item\">Listings on the Chrome Web Store and Firefox Add-ons, where its <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/addons.mozilla.org\/firefox\/addon\/whatruns\/\">Firefox Add-ons listing<\/a> shows a rating of 4 out of 5 from more than 60 reviews.<\/li>\n<\/ul>\n<p><strong>Good for:<\/strong> Reps, marketers, and developers who want a quick, no-cost look at a single site while browsing, much like Wappalyzer\u2019s free extension.<\/p>\n<p><strong>Limitation:<\/strong> It works one page at a time inside the browser, with no documented API, bulk lists, historical data, or backend evidence.<\/p>\n<p><strong>Bottom line:<\/strong> WhatRuns answers \u201cwhat is on this page?\u201d while PredictLeads answers \u201cwhich of 99M+ companies show evidence of this technology, and since when?\u201d<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Wappalyzer_Alternatives_Feature_Comparison\"><\/span>Wappalyzer Alternatives Feature Comparison<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The table scores each tool on the six dimensions above, with Wappalyzer included as the reference point. \u201cNot published\u201d means the sources reviewed did not document that dimension.<\/p>\n<table class=\"border-collapse table-fixed w-full max-w-full\" style=\"border-collapse: collapse; width: 100%; min-width: 150px\">\n<caption style=\"caption-side: top; text-align: left; color: #000000; padding: 0 0 8px; font-size: 14px\">Wappalyzer alternatives compared on six dimensions (October 2026)<\/caption>\n<tbody>\n<tr class=\"\">\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Tool<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Detection sources<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Backend evidence<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Published coverage<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Historical timestamps<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Source attribution<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Delivery<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Access Model<\/p>\n<\/th>\n<\/tr>\n<tr class=\"\">\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>PredictLeads<\/p>\n<\/th>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Yes: 5 sources (script tags, DNS, IP ranges, cookies, job descriptions)<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Yes: <code spellcheck=\"false\">behind_firewall<\/code> flag<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>99M+ companies; 240,000+ technologies<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Yes: <code spellcheck=\"false\">first_seen_at<\/code> \/ <code spellcheck=\"false\">last_seen_at<\/code> since 2018<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Yes: subpage, job, or DNS source per record<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>API, flat files, webhooks, MCP<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Pay-as-you-go, 100 free API requests<\/p>\n<\/td>\n<\/tr>\n<tr class=\"\">\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>BuiltWith<\/p>\n<\/th>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Partial: website-based crawling<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>No: job-description source not documented<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Nearly half a billion domains<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Partial: adoption trends; per-record fields not published<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Not published<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Lookups, lists, API, MCP, CRM integrations<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Free limited lookup, paid plans for full data<\/p>\n<\/td>\n<\/tr>\n<tr class=\"\">\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>SimilarTech<\/p>\n<\/th>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Partial: website-based, with traffic context<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>No<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Not published<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Not published<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Not published<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Web app, lists, alerts<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Not published<\/p>\n<\/td>\n<\/tr>\n<tr class=\"\">\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>TheirStack<\/p>\n<\/th>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Partial: job postings<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Yes: job postings<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>11M+ companies; 32,000+ technologies<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Not published<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Yes: link to source posting<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Web app, API, webhooks, CSV<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Free tier, paid API plans<\/p>\n<\/td>\n<\/tr>\n<tr class=\"\">\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Coresignal<\/p>\n<\/th>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Partial: raw job posting text<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Partial: buyer extracts from posting text<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>70M+ companies; 420M+ job postings<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Not published for technologies<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Not published<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Datasets (JSON, CSV, Parquet), API<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Paid bulk datasets, samples for evaluation<\/p>\n<\/td>\n<\/tr>\n<tr class=\"\">\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>WhatRuns<\/p>\n<\/th>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Partial: current page in browser<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>No<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Not published<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>No: current page only<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>No<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Browser extension<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Free browser extension<\/p>\n<\/td>\n<\/tr>\n<tr class=\"\">\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Wappalyzer (reference)<\/p>\n<\/th>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Partial: page code, scripts, headers, cookies, some DNS<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>No: \u201ccannot detect server-side or hidden technologies\u201d<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Not published in sources reviewed<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Not published<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Not published<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Extension, lookups, lists, API, MCP<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Free browser extension, paid lookup and API plans<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Choose_the_Right_Wappalyzer_Alternative\"><\/span>How to Choose the Right Wappalyzer Alternative<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Start from the question your workflow asks, then pick the evidence type that answers it.<\/p>\n<table class=\"border-collapse table-fixed w-full max-w-full\" style=\"border-collapse: collapse; width: 100%; min-width: 150px\">\n<tbody>\n<tr class=\"\">\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Your question<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Evidence you need<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #f9fafb; color: #000000; padding: 12px; text-align: left; font-size: 14px\">\n<p>Tools in this comparison that fit<\/p>\n<\/th>\n<\/tr>\n<tr class=\"\">\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>What is on this one site?<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Page code, checked in a browser<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>WhatRuns, Wappalyzer free plan<\/p>\n<\/td>\n<\/tr>\n<tr class=\"\">\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>How many sites use this frontend tool?<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>A large website index with adoption trends<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>PredictLeads, BuiltWith, SimilarTech<\/p>\n<\/td>\n<\/tr>\n<tr class=\"\">\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Which accounts use this backend tool?<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Job-description evidence<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>PredictLeads, TheirStack<\/p>\n<\/td>\n<\/tr>\n<tr class=\"\">\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>What changed on my target accounts?<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Timestamps plus webhooks or alerts<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>PredictLeads (webhooks), Wappalyzer and SimilarTech (alerts)<\/p>\n<\/td>\n<\/tr>\n<tr class=\"\">\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Can I build models from raw records?<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Bulk files<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>PredictLeads flat files, Coresignal<\/p>\n<\/td>\n<\/tr>\n<tr class=\"\">\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>Can my AI agent look this up?<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>An MCP server<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" style=\"border: 1px solid #d1d5db; background-color: #ffffff; color: #000000; padding: 12px; font-size: 14px\">\n<p>PredictLeads, Wappalyzer, BuiltWith<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Some needs fall outside this table. Neither PredictLeads nor general profilers such as BuiltWith are optimized for these narrow jobs, because they report company-level technology evidence:<\/p>\n<ul class=\"list-disc pl-6\">\n<li class=\"list-item\"><strong>Shopify-powered stores:<\/strong> a specialized Shopify store detector fits better than a general technographic tool.<\/li>\n<li class=\"list-item\"><strong>WordPress plugins and themes at scale:<\/strong> a CMS-specific plugin detection tool is more precise.<\/li>\n<li class=\"list-item\"><strong>Code snippets or library versions:<\/strong> a source-code search tool fits better than company-level technographic data.<\/li>\n<\/ul>\n<p>PredictLeads is API-first, so teams without a developer can connect it through Clay, Make, or n8n. If your question includes timing, such as accounts that adopted a tool last quarter and are also hiring for it, you need timestamps and job data in one record set. The guide to <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/find-companies-using-technology\/\">finding companies using a technology<\/a> walks through that query, with results ordered by <code spellcheck=\"false\">first_seen_at<\/code> so recent adopters surface first. To turn detections into account lists, see how to build <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/technographic-data-abm-guide\/\">technographic ABM target lists<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_PredictLeads_Is_the_Best_Wappalyzer_Alternative_for_B2B_Teams\"><\/span>Why PredictLeads Is the Best Wappalyzer Alternative for B2B Teams<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Wappalyzer answers what a website shows today. B2B teams usually need three more answers: whether an account uses a tool anywhere in its stack, how long that evidence has existed, and whether anything around it is changing. PredictLeads covers all three because it reads five evidence sources, timestamps every detection with <code spellcheck=\"false\">first_seen_at<\/code> and <code spellcheck=\"false\">last_seen_at<\/code>, and sits next to Job Openings, News Events, and Financing Events in the same API. See what 2B+ detections look like <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/technographics-dataset\/\">inside a technographics dataset<\/a>.<\/p>\n<p>It also treats change carefully. When a technology is no longer detected, the record keeps its <code spellcheck=\"false\">last_seen_at<\/code> date and does not declare a cancellation, because script changes, recrawl gaps, and signature updates can all produce the same gap. A new job posting that names a replacement tool is stronger supporting evidence of a possible transition, not confirmation. The hiring side of that logic is covered in <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/job-openings-data-technographics\/\">job openings data and tech stack accuracy<\/a>. For the detection side, see <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/blog\/technographic-data-accuracy\/\">technographic data accuracy pitfalls<\/a>.<\/p>\n<p>If you are comparing the wider market beyond Wappalyzer replacements, the roundup 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> covers more options in depth. Data builders can start in the <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/docs.predictleads.com\">PredictLeads API documentation<\/a>. AI agent builders can connect through the <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/docs.predictleads.com\/mcp_integration\/introduction\">PredictLeads MCP server<\/a>. For enrichment pipelines, read the guide to the <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 for B2B enrichment<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"What_is_the_best_free_Wappalyzer_alternative_in_2026\"><\/span>What is the best free Wappalyzer alternative in 2026?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>For checking a single site, WhatRuns is a free browser extension that works much like Wappalyzer\u2019s own free plan, which allows 50 lookups per month. Developers who want to self-host scanning can use open-source forks such as webappanalyzer, which maintain the Wappalyzer fingerprint library under GPL-3.0. None of these options read job descriptions, so backend tools stay out of view. To test multi-source detection at the account level, PredictLeads gives you 100 free API requests when you create an account, enough to pull Technology Detections for a short list of target domains.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_Wappalyzer_or_BuiltWith_detect_Salesforce_Snowflake_or_Datadog_usage\"><\/span>Can Wappalyzer or BuiltWith detect Salesforce, Snowflake, or Datadog usage?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sometimes, but only when the tool leaves a footprint on a public page, such as a Salesforce web-to-lead form or a Datadog browser monitoring script. A data warehouse like Snowflake rarely appears in page code, so website-based scanners usually miss it. Job descriptions fill that gap because companies name the tools their engineers and analysts need to know. PredictLeads Technology Detections combine both: page-level evidence carries <code spellcheck=\"false\">behind_firewall<\/code> set to false, and job-description evidence links back to the job opening URL it came from.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Wappalyzer_vs_BuiltWith_which_is_better_for_B2B_lead_generation_in_2026\"><\/span>Wappalyzer vs BuiltWith: which is better for B2B lead generation in 2026?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>It depends on the job. Wappalyzer\u2019s strengths are its browser extension and a free plan with 50 monthly lookups, while BuiltWith\u2019s are scale and market analysis, with an index of nearly half a billion domains. Both are website-based and neither documents job-description evidence, so both see frontend tools more clearly than backend ones. For B2B account lists that need backend coverage, timestamps, and hiring signals, PredictLeads pairs its Technology Detections with its Job Openings dataset in the same API.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_do_I_find_companies_using_a_specific_technology_with_the_PredictLeads_API\"><\/span>How do I find companies using a specific technology with the PredictLeads API?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Call <code spellcheck=\"false\">GET \/discover\/technologies\/{technology_id_or_fuzzy_name}\/technology_detections<\/code> with a technology name such as Snowflake or HubSpot. Results are ordered by <code spellcheck=\"false\">first_seen_at<\/code>, newest first, so recent adopters appear at the top, and discovery endpoints typically cost 1 credit per record returned. Authenticate with the <code spellcheck=\"false\">X-Api-Key<\/code> and <code spellcheck=\"false\">X-Api-Token<\/code> headers. Full parameters are in the <a target=\"_blank\" rel=\"noopener\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/docs.predictleads.com\">PredictLeads documentation<\/a>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Is_there_an_open-source_Wappalyzer_alternative\"><\/span>Is there an open-source Wappalyzer alternative?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Yes. After Wappalyzer\u2019s repository went private in August 2023, community forks such as webappanalyzer continued the fingerprint library under GPL-3.0 and kept its JSON structure. They suit developers and security teams that want to scan domains on their own infrastructure, but you maintain the crawling, storage, and fingerprint updates yourself. If you want that evidence as maintained data instead, PredictLeads Technology Detections deliver 2B+ detections since 2018 through API, flat files, webhooks, and MCP.<\/p>\n<h2><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><\/h2>\n<p>Get 100 free API requests when you <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/sign_up\">create an account<\/a> &#8211; no credit card, no sales call.<\/p>\n<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>\n<h2><span class=\"ez-toc-section\" id=\"Final_Thoughts_on_Wappalyzer_Alternatives\"><\/span>Final Thoughts on Wappalyzer Alternatives<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Wappalyzer and the free extensions in this list still check a single site in seconds. Once technographic data has to rank accounts, feed a CRM, or brief an AI agent, the questions change: which evidence supports the detection, when it first appeared, and what else is happening at the company. That is the work a multi-source data provider is built for. <a target=\"_blank\" rel=\"dofollow\" class=\"text-blue-500 underline cursor-pointer\" href=\"https:\/\/predictleads.com\/sign_up\">Use your free API requests<\/a> to pull Technology Detections for a handful of target domains, then compare them with what a browser extension shows on the same sites.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Compare the best Wappalyzer alternatives for B2B teams in October 2026, from multi-source technographic APIs to website scanners.<\/p>\n","protected":false},"author":8,"featured_media":2216,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[2,86],"tags":[36,34],"class_list":["post-1470","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-company","category-technology-dataset","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>Best Wappalyzer Alternatives Aug 2026 | PredictLeads<\/title>\n<meta name=\"description\" content=\"Explore the best Wappalyzer alternatives for August 2026. 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