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Consent & security

Websites Using reCAPTCHA

Google reCAPTCHA protects forms and logins from bots and spam.

4,231,836 sites detected across 97,179,967 indexed domains refreshed monthly · July 2026

The source-code fingerprint

recaptcha/api.js Search all 4,231,836 results →

The reCAPTCHA library is loaded from www.google.com/recaptcha/api.js.

Likely false positives: Reliable indicator of reCAPTCHA v2/v3 on a page.

Example websites using reCAPTCHA

These domains all contain the recaptcha/api.js fingerprint in their homepage source right now. A match is a verified substring of the live page, so confidence is high — the false positives noted above are the main caveat.

Showing 30 of 4,231,836 matching sites. Open the full ranked list, inspect the matched source, and export the domain list →

Related technologies

hCaptchaOneTrust

How this works

SearchWebCode indexes the raw HTML, CSS and JavaScript source of public web pages. To find sites using reCAPTCHA we match the literal fingerprint recaptcha/api.js — the code reCAPTCHA ships — against that index, then verify each match against the raw source. Counts reflect the current index (97,179,967 domains, refreshed monthly, last built July 2026) and grow as we scale toward the whole web. Run the search yourself to see every match, view the full page source for any result, filter by TLD or regex, and export the domain list.