BuiltWith vs TechStackIntel

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.

TechStackIntel is a technographics API for curated company technology-stack snapshots and taxonomy-backed lookups. Its launch catalog contains 200 curated company domains. GET /v1/lookup handles one domain, while POST /v1/batch/lookup accepts multiple domains through the same lookup pipeline. Responses include company data, cache status, schema version, evidence, and possibly product data. Anonymous access allows 60 requests per hour per IP. Free API keys allow 120 requests per hour, with grace up to 160 before the cap returns. Signup begins with an email magic link; keys can be sent using X-Api-Key or Authorization: Bearer, and GET /v1/usage reports usage. Canonical taxonomy slugs cover company.stack, with schema version 1.1.0 and confidence from 0 to 1. Research submissions accept taxonomy slugs, evidence, and optional products. Coverage is not guaranteed for every domain; missing snapshots return not-found. Curl commands, a thin CLI wrapper, JSON previews, and batch lookup are provided.