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 on checkout pages. That is normal across the industry.
Scale
We track 450M+ websites and 30,000+ technologies, with ongoing updates.
What to do next
- Data accuracy
Last reviewed: 2026-07-10