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 |
|---|---|---|---|
| ma-kko.com | #88,295 | Google Fonts, Google Tag Manager, Let's Encrypt + 6 more | Find emails |
| budzdorov.ru | #88,315 | Google Tag Manager, Mindbox, PHP + 2 more | Find emails |
| lining.studio | #88,339 | Cloudflare edge/CDN, GoKwik, Judge.me + 5 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| finanzen2.net |
| #88,348 |
| Amazon Advertising, Amazon CloudFront, Amazon S3 + 20 more |
| Find emails |
| meltingme.com | #88,351 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| claus.ro | #88,352 | Bootstrap, Google Analytics, Google Tag Manager + 10 more | Find emails |
| almirah.com.pk | #88,356 | AdRoll, Amazon Route 53, Cloudflare edge/CDN + 12 more | Find emails |
| prpack.ru | #88,405 | DataLife Engine, Google Analytics, JivoChat + 8 more | Find emails |
| latticesemi.com | #88,457 | ASP.NET, AddThis, Akamai Edge DNS + 14 more | Find emails |
| arihantbooks.com | #88,477 | Cloudflare edge/CDN, Google Fonts, Google Tag Manager + 7 more | Find emails |
| shaposh.com | #88,500 | Cloudflare edge/CDN, Google Analytics, Google Tag Manager + 9 more | Find emails |
| thebrief.ai | #88,501 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| ozonee.pl | #88,508 | Criteo, Google Analytics, Google Fonts + 5 more | Find emails |
| milbstore.com | #88,512 | Amazon Route 53, Cloudflare edge/CDN, CrazyEgg + 17 more | Find emails |
| samdu.uz | #88,519 | AOS, Bootstrap, Font Awesome + 19 more | Find emails |
| maluzen.com | #88,523 | Cloudflare Web Analytics, Cloudflare edge/CDN, Font Awesome + 12 more | Find emails |
| thefreshmarket.com | #88,542 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| ajptour.com | #88,556 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 7 more | Find emails |
| nodechef.com | #88,557 | Font Awesome, Google Analytics, Let's Encrypt + 2 more | Find emails |
| myvirtua.org | #88,579 | ASP.NET, Azure API Management, DigiCert + 6 more | Find emails |
| go4schools.com | #88,593 | ASP.NET, Azure DNS, Bootstrap + 11 more | Find emails |
| kurumsaleposta.com | #88,602 | Bootstrap, DoubleClick (Google Ads), Fancybox + 12 more | Find emails |
| wowtv.co.kr | #88,609 | ASP.NET, Criteo, DigiCert + 11 more | Find emails |
| cimory.com | #88,612 | AddThis, Apache, Bootstrap + 15 more | Find emails |
| qqdq.ru | #88,637 | Google Fonts, Nginx, Yandex Metrica + 1 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →