BuiltWith vs TechnologyChecker

BuiltWith profiles websites to help users research technology adoption, ecommerce activity, web usage trends, and potential sales leads. The platform says it tracks 127,671 web technologies and provides usage lists covering more than 370 million active domains, with over 18 years of usage history available through its plans. Users can find ecommerce websites and products, filter reports by category, region, or technology, and export results. Uploaded website lists can be analyzed, with report metadata and technology-use matrices exportable to Excel or CSV. Future Customers uses technology overlap to recommend potential leads. BuiltWith offers API access with XML and JSON feeds, browser extensions for Chrome, Firefox, and Edge, and CRM integrations including Salesforce, HubSpot, Pardot, Zoho CRM, Close.io, and Microsoft Dynamics 365. Individual website lookups are free; the Free plan permits 10 detailed lookups per day. Advanced costs $144 a year. Monthly plans have a one-month minimum and yearly plans a one-year minimum, and plans can be canceled at any time. The maker was founded in 2007 and is based in Sydney, Australia.

TechnologyChecker is a technology intelligence platform for B2B sales, go-to-market, and market analysis teams. It detects technologies across 29.9M live business domains, with coverage stated as 40,000+ technologies. Detection uses signals including HTTP headers, JavaScript fingerprinting, HTML parsing, and DNS lookups, and can identify backend infrastructure as well as standalone tools. Historical technology timelines reach roughly 20 years, while real-time signals cover adoption, churn, and replacement changes. The platform also offers verified decision-maker contacts matched to technology signals and audience exports for LinkedIn, Facebook, and Google Ads. Its API describes 29 REST endpoints for detection, company data, category share, and adoption, churn, and switch signals. Access is available through web, API, and a Chrome extension. The Free plan provides 100 lookups per month, six months of history, single-result CSV export, and basic company enrichment. Pro is $89 a month, billed $890 a year; Scale is $249 a month, billed $2,490 a year. Lookups pause when the monthly limit is reached until renewal or upgrade.