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 |
|---|---|---|---|
| betha.com.br | #59,713 | Amazon Route 53, Apache, Gatsby + 3 more | Find emails |
| almanar.com.lb | #59,749 | Google Tag Manager, Nginx, Owl Carousel + 6 more | Find emails |
| salamair.com | #59,750 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| keychron.com | #59,767 | Cloudflare edge/CDN, GoAffPro, Google Fonts + 8 more | Find emails |
| cloudsfor.com | #59,772 | Font Awesome, Foundation, Let's Encrypt + 5 more | Find emails |
| nic.ge | #59,796 | DigiCert, Google Maps, Google Tag Manager + 3 more | Find emails |
| santander.pt | #59,799 | Adobe Experience Manager Edge Delivery (Helix RUM), Akamai Edge DNS, DoubleClick (Google Ads) + 11 more | Find emails |
| serverroom.net | #59,876 | Google Identity Services, Let's Encrypt, Nginx + 1 more | Find emails |
| honda-indonesia.com | #59,878 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 9 more | Find emails |
| spin.it | #59,888 | ASP.NET, Bootstrap, Cookiebot + 9 more | Find emails |
| drake.edu | #59,912 | Adobe Fonts (Typekit), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| pantagraph.com | #59,915 | 33Across, Advertising.com, Amazon Advertising + 45 more | Find emails |
| reebok.eu | #59,922 | Cloudflare edge/CDN, Judge.me, Let's Encrypt + 7 more | Find emails |
| gospelcom.net | #59,925 | Amazon (ACM), Amazon CloudFront, Elementor + 10 more | Find emails |
| fing.edu.uy | #59,934 | Apache, Drupal, Let's Encrypt + 3 more | Find emails |
| gamespress.com | #59,936 | ASP.NET, Bluesky, Bootstrap + 10 more | Find emails |
| homecredit.vn | #59,965 | Azure Front Door, Gatsby, Microsoft 365 + 2 more | Find emails |
| scribblemaps.com | #59,966 | Azure API Management, Cloudflare, Cloudflare Turnstile + 9 more | Find emails |
| rozetked.me | #59,976 | DDoS-Guard, Google Analytics, Google Hosted Libraries + 8 more | Find emails |
| puzzel.com | #59,978 | Cloudflare Bot Management, Cloudflare edge/CDN, ConsentMo + 11 more | Find emails |
| skillsyouneed.com | #59,992 | Google Analytics, Google Fonts, Google Hosted Libraries + 7 more | Find emails |
| gopetition.com | #60,026 | AddThis, Bootstrap, Cloudflare + 11 more | Find emails |
| fb.ru | #60,047 | Google Fonts, Let's Encrypt, LiveInternet (Yadro) + 5 more | Find emails |
| converse.co.jp | #60,093 | Cloudflare edge/CDN, Google Fonts, Google Hosted Libraries + 6 more | Find emails |
| gdrfad.gov.ae | #60,096 | Bootstrap, DigiCert, Drupal + 7 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 →