BuiltWith vs Explorium

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.

Explorium provides B2B data and infrastructure for AI agents and go-to-market workflows, including account discovery, enrichment, event tracking and research. Its Generate Accounts & Prospects API builds targeted lists using filters such as company size, website keywords and technologies. Enrichment APIs cover firmographics, workforce trends, professional profiles, and company and personal contact information. The Events API tracks real-time developments such as partnerships and product launches; the AI Research API accepts natural-language queries to generate ideal customer profiles and insights. Listed coverage includes 146M+ business entities, 767M+ professional profiles, 90M+ geospatial datapoints and 4000+ data signals. Delivery options include native integrations, API or MCP access, and customized bulk data drops. AgentSource v2 includes matching, enrichment, research, events, webhooks, asynchronous jobs and credit-usage endpoints. A free trial provides 100 credits valid for 90 days. Paid packages include Lite at $29.99, paid once, with 500 credits valid for 12 months and no rollover.