security

Which companies use Google reCAPTCHA?

CipherCue tracks organisations observed running Google reCAPTCHA on their public infrastructure, detected through HTTP fingerprinting, response headers, and service banners. Sign up free, no credit card, to see the full list.

Show me everyone using Google reCAPTCHA

Free, no credit card. Filter and view every organisation observed running Google reCAPTCHA, alongside their full tech stack, hosting geography, and observed change history.

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How this is observed: CipherCue continuously probes the public-facing infrastructure of tracked organisations. Google reCAPTCHA is detected via HTTP response headers, HTML fingerprints, and TCP service banners. Each observation is timestamped and stored alongside its evidence. See the observation methodology for full detail.