CAPTCHA & Bot Protection
91,344 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA (9.1%). Google's CAPTCHA/bot-scoring widget, the most widely deployed CAPTCHA by far. Detection is homepage-level HTML/header fingerprinting, so a site can run reCAPTCHA on other pages without it showing here.
Other captcha & bot protection
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | snapchat.com | #123 (Tranco) | Find emails |
| 2 | apache.org | #125 (Tranco) | Find emails |
| 3 | one.one | #160 (Tranco) | Find emails |
| 4 | w3.org |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| mimao.eu | #134,826 | Cloudflare, Cloudflare edge/CDN, ConsentMo + 6 more | Find emails |
| godville.net | #134,830 | Cloudflare, Feedburner, jQuery | Find emails |
| goldbroker.com | #134,842 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| geckoengage.com |
| #134,846 |
| AOS, Amazon CloudFront, Amazon Route 53 + 14 more |
| Find emails |
| banquetrecords.com | #134,850 | Apache, Bootstrap, Cloudflare + 8 more | Find emails |
| servidoresseguros.com | #134,851 | Cloudflare, Cloudflare Turnstile, Cloudflare Web Analytics + 11 more | Find emails |
| ebonyline.com | #134,867 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 3 more | Find emails |
| betnow.eu | #134,881 | Bootstrap, Cloudflare, Cloudflare Turnstile + 7 more | Find emails |
| privratnik.net | #134,891 | Let's Encrypt, Nginx, PHP + 2 more | Find emails |
| bobevans.com | #134,902 | ASP.NET, Apple Pay, Azure API Management + 8 more | Find emails |
| slickpic.com | #134,907 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 13 more | Find emails |
| mailshake.com | #134,917 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 22 more | Find emails |
| slamdunk.ru | #134,940 | Cloudflare, Google Analytics, Google Tag Manager + 11 more | Find emails |
| 1spin4win.com | #134,942 | AWS Lambda, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| allthelyrics.com | #134,949 | Bunny CDN, BunnyCDN, Drupal + 7 more | Find emails |
| hifi-forum.de | #134,950 | Amazon Advertising, AppNexus, Casale Media + 16 more | Find emails |
| easel.com | #134,952 | AWS Lambda, Amazon (ACM), Amazon Route 53 + 14 more | Find emails |
| selfmade.com | #134,979 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 3 more | Find emails |
| analyticum.pro | #135,014 | JivoChat, Let's Encrypt, Nginx + 2 more | Find emails |
| udst.edu.qa | #135,051 | Bootstrap, Cloudflare edge/CDN, ConsentMo + 14 more | Find emails |
| huntworld.ru | #135,103 | Bitrix, DDoS-Guard, Google Maps + 4 more | Find emails |
| rxlocal.com | #135,110 | AWS Lambda, Adobe Fonts (Typekit), Azure DNS + 8 more | Find emails |
| sourcesecurity.com | #135,112 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 18 more | Find emails |
| enxx.ru | #135,141 | Google Fonts, Nginx, Yandex Metrica + 1 more | Find emails |
| ezpassva.com | #135,151 | ASP.NET, Amazon CloudFront, Amazon S3 + 14 more | Find emails |
Showing the first 10,000matches — add a filter to narrow.
From the Crawlora Website Tech Stack Dataset, a homepage-level fingerprint of a 1,000,000-domain Tranco top-1M census (run top1m-2026-08-25-full-v2), snapshot August 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →