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.
| # | 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 |
|---|---|---|---|
| esvacloud.com | #110,357 | Cloudflare, Cloudflare edge/CDN, GSAP + 12 more | Find emails |
| buildinggreen.com | #110,364 | Adobe Fonts (Typekit), AngularJS, Bootstrap + 14 more | Find emails |
| intellum.com | #110,370 | AWS Lambda, Adobe Fonts (Typekit), Amazon Route 53 + 9 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| paireyewear.com | #110,379 | Cloudflare, Cloudflare edge/CDN, ConsentMo + 8 more | Find emails |
| flashghetto.com | #110,388 | ExoClick, Let's Encrypt, Namecheap + 2 more | Find emails |
| mserwis.pl | #110,389 | Apache, CookieYes, DigiCert + 10 more | Find emails |
| carriageservices.com | #110,398 | AOS, Adobe Fonts (Typekit), Cloudflare Bot Management + 20 more | Find emails |
| coinpayments.net | #110,401 | ASP.NET, Bootstrap, Cloudflare + 20 more | Find emails |
| sheplers.com | #110,414 | Amazon Route 53, Cloudflare edge/CDN, Fastly + 11 more | Find emails |
| nic.ua | #110,449 | Font Awesome, Google Tag Manager, Modernizr + 3 more | Find emails |
| comlaude.co.uk | #110,467 | 6sense, Apache, CookieYes + 12 more | Find emails |
| gelisim.edu.tr | #110,472 | Ahrefs Analytics, Bootstrap, DigiCert + 7 more | Find emails |
| carolinas.org | #110,480 | ASP.NET, Azure API Management, Azure Front Door + 10 more | Find emails |
| collabornation.net | #110,481 | Amazon Route 53, Drupal, Google Analytics + 4 more | Find emails |
| passle.net | #110,509 | Amazon Route 53, Font Awesome, Let's Encrypt + 6 more | Find emails |
| indiegala.com | #110,519 | Bootstrap, ClickCease, Cloudflare + 17 more | Find emails |
| iem.sh | #110,526 | Let's Encrypt, Nginx, Ruby on Rails + 1 more | Find emails |
| celebuzz.com | #110,527 | All in One SEO, Amazon Advertising, Cloudflare + 14 more | Find emails |
| filmbooster.com | #110,536 | Didomi, Google Tag Manager, Let's Encrypt + 4 more | Find emails |
| quantumfiber.com | #110,537 | Adobe Fonts (Typekit), Adyen, Brightcove + 26 more | Find emails |
| bionika.ru | #110,543 | Bootstrap, Drupal, Font Awesome + 3 more | Find emails |
| propertybase.com | #110,563 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Trust Services + 1 more | Find emails |
| penelopechilvers.com | #110,564 | Cloudflare, Cloudflare edge/CDN, Judge.me + 5 more | Find emails |
| soldejaneiro.com | #110,570 | AB Tasty, ClickTale (Contentsquare), Cloudflare edge/CDN + 12 more | Find emails |
| rossignol.com | #110,576 | Adobe Fonts, Adobe Fonts (Typekit), Bazaarvoice + 8 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 →