CAPTCHA & Bot Protection
90,376 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA (9%). 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.
| # | 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 |
|---|---|---|---|
| vnnic.vn | #36,051 | Apache, DigiCert, Drupal + 6 more | Find emails |
| um-surabaya.ac.id | #36,054 | Bootstrap, Font Awesome, Google Analytics + 10 more | Find emails |
| dimepkairos.com.br | #36,064 | Font Awesome, Google Analytics, Google Cloud DNS + 10 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| mingle2.com | #36,128 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 18 more | Find emails |
| augmentcode.com | #36,132 | Amazon CloudFront, Atlassian Statuspage, Auth0 + 17 more | Find emails |
| yito.ru | #36,168 | Bitrix, Font Awesome, Google Analytics + 10 more | Find emails |
| sportsline.com | #36,184 | Chartbeat, DoubleClick (Google Ads), Fastly + 9 more | Find emails |
| businessdailyafrica.com | #36,188 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| thegazette.com | #36,205 | Blockthrough, Cloudflare edge/CDN, Google Fonts + 7 more | Find emails |
| rugs.com | #36,222 | Affirm, ChatGPT Ads Pixel, Criteo + 12 more | Find emails |
| hashthemes.com | #36,225 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 13 more | Find emails |
| parler.com | #36,246 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 12 more | Find emails |
| unlimited.rs | #36,273 | AdRoll, Bootstrap, Cloudflare + 15 more | Find emails |
| yorkshireeveningpost.co.uk | #36,283 | Cloudflare Bot Management, Cloudflare edge/CDN, DoubleClick (Google Ads) + 9 more | Find emails |
| dickies.com | #36,285 | Cloudflare edge/CDN, Let's Encrypt, Noibu + 5 more | Find emails |
| dvdtalk.com | #36,287 | Amazon Advertising, Cloudflare, Cloudflare Web Analytics + 19 more | Find emails |
| nfoservers.com | #36,291 | Apache, Google Fonts, Meta Pixel + 1 more | Find emails |
| gevernova.com | #36,336 | Adobe Experience Cloud (Launch), Akamai edge/CDN, Bluesky + 11 more | Find emails |
| onegreenplanet.org | #36,344 | Bootstrap, Cloudflare, Font Awesome + 9 more | Find emails |
| everskies.com | #36,362 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| thecentersquare.com | #36,366 | DoubleClick (Google Ads), Google Fonts, Google Publisher Tag + 5 more | Find emails |
| pololu.com | #36,388 | Braintree, Font Awesome, Google Analytics + 9 more | Find emails |
| icmje.org | #36,401 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| mixlr.com | #36,429 | Amazon (ACM), Amazon Route 53, Google Fonts + 7 more | Find emails |
| kshb.com | #36,430 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →