Data Quality and Coverage
How does technology detection work?
Short answer
We analyze public website signals — scripts, headers, DNS, and page content — and match them against 30,000+ technology fingerprints.
Signals we use
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JavaScript and page HTML patterns
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HTTP headers and cookies
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DNS records where relevant
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Public assets and meta tags
Not magic
Some tools are invisible, removed, or only available on checkout pages. This is standard across the industry.
Scale
We track more than 450 million websites and 30,000+ technologies, with continuous updates.
Next steps
- Data accuracy
Last reviewed: 2026-07-10