Websites Using reCAPTCHA

reCAPTCHA is a security service developed by Google that protects websites from spam and abuse by distinguishing human users from automated bots. It uses risk analysis and interactive challenges to verify legitimate users without requiring traditional CAPTCHA tests.

Categories: Security

Official website: https://www.google.com/recaptcha/

31334 websites using reCAPTCHA

reCAPTCHA is ranked #4 of 316 in Security by website adoption.

Security alternatives ranked by popularity

HSTS — 127,643 websites
Cloudflare WAF — 52,384 websites
Cloudflare Bot Management — 32,541 websites
Cloudflare DDoS Protection — 24,882 websites
reCAPTCHA Enterprise — 17,344 websites
hCaptcha — 7,159 websites
Akamai Kona Site Defender — 5,720 websites
Cloudflare Turnstile — 5,485 websites
DDoS-Guard — 2,925 websites
Imperva — 2,451 websites

Technologies commonly used with reCAPTCHA

Open Graph — 79% co-occurrence
Schema.org — 61% co-occurrence
PHP — 59% co-occurrence
Google — 56% co-occurrence
reCAPTCHA Enterprise — 55% co-occurrence
Google Analytics — 52% co-occurrence
HSTS — 51% co-occurrence
Google Tag Manager — 50% co-occurrence

How WhatStack detects reCAPTCHA

WhatStack detects reCAPTCHA by analyzing HTTP headers, HTML source code, JavaScript globals, meta tags, cookies, DNS records, and ads.txt entries using signature-based pattern matching across 10 different analyzers.

Frequently Asked Questions

What is reCAPTCHA?: reCAPTCHA is a security service developed by Google that protects websites from spam and abuse by distinguishing human users from automated bots. It uses risk analysis and interactive challenges to verify legitimate users without requiring traditional CAPTCHA tests.
How many websites use reCAPTCHA?: WhatStack has detected reCAPTCHA on 31334 websites in our database.
How do you detect reCAPTCHA?: We analyze HTTP headers, HTML source, JavaScript globals, meta tags, cookies, DNS records, and ads.txt entries to identify reCAPTCHA with high accuracy using signature-based pattern matching.