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 |
|---|---|---|---|
| mawartotovinales.com | #86,803 | Cloudflare, Cloudflare edge/CDN, Google Hosted Libraries + 5 more | Find emails |
| ballys.com | #86,817 | AOS, ASP.NET, Algolia + 9 more | Find emails |
| vgdl.ir | #86,819 | Let's Encrypt, LiteSpeed | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| careerist.ru |
| #86,825 |
| Bootstrap, Cloudflare, Google AdSense + 12 more |
| Find emails |
| brabu.ac.in | #86,840 | ASP.NET, Bootstrap, DataTables + 18 more | Find emails |
| bugaboo.com | #86,848 | Affirm, Amazon Route 53, Cloudflare edge/CDN + 10 more | Find emails |
| homeswapper.co.uk | #86,849 | ASP.NET, Azure API Management, Cloudflare + 9 more | Find emails |
| top-webtoons.org | #86,854 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| rande.cz | #86,867 | ASP.NET, Ahrefs Analytics, Bootstrap + 6 more | Find emails |
| guilford.com | #86,893 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| belmeta.com | #86,907 | ASP.NET, ConsentMo, Contentful + 4 more | Find emails |
| nadaguides.com | #86,917 | Amazon Route 53, Drupal, Fastly + 9 more | Find emails |
| factory54.co.il | #86,947 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 5 more | Find emails |
| gulfstream.ru | #86,952 | Bitrix, Fancybox, Google Analytics + 12 more | Find emails |
| domestico24.es | #86,958 | Cloudflare, ConsentMo, Cookiebot + 6 more | Find emails |
| grubiks.com | #86,976 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| crepdogcrew.com | #86,981 | Cloudflare edge/CDN, Google Tag Manager, Klaviyo + 12 more | Find emails |
| km.se | #87,001 | Azure DNS, Azure Front Door, DigiCert + 5 more | Find emails |
| krishnaayurved.com | #87,010 | Cloudflare edge/CDN, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| bolsadeleiloes.com.br | #87,015 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| blic.net | #87,053 | Brevo, Cookiebot, DigiCert + 7 more | Find emails |
| ho.ua | #87,062 | Apache, Bootstrap, Google Analytics + 8 more | Find emails |
| binkdate.nl | #87,063 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 11 more | Find emails |
| datacheap.ru | #87,069 | Fancybox, Google Fonts, Nginx + 7 more | Find emails |
| beauty-istanbul.com | #87,079 | CDN Fonts, Cloudflare Bot Management, Cloudflare edge/CDN + 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →