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 |
|---|---|---|---|
| yogonet.com | #40,964 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 6 more | Find emails |
| boscovs.com | #40,971 | Amazon CloudFront, Bazaarvoice, Bootstrap + 11 more | Find emails |
| portsmouth.co.uk | #40,981 | Cloudflare Bot Management, Cloudflare edge/CDN, DoubleClick (Google Ads) + 9 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| proporn.com | #40,986 | Cloudflare, Google Analytics, Let's Encrypt + 3 more | Find emails |
| tributecenteronline.com | #40,987 | ASP.NET, Amazon (ACM), Amazon Route 53 + 8 more | Find emails |
| arhaus.com | #41,000 | Bloomreach, Bread Financial (Comenity), Clarip + 10 more | Find emails |
| fastspring.com | #41,010 | Algolia, Amazon CloudFront, Amazon Route 53 + 17 more | Find emails |
| starapps.studio | #41,018 | AWS Lambda, Cloudflare edge/CDN, Google Analytics + 10 more | Find emails |
| callofwar.com | #41,022 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| catholiccompany.com | #41,025 | Adobe Fonts (Typekit), Attentive, Cloudflare + 8 more | Find emails |
| candidthemes.com | #41,027 | Font Awesome, Google Analytics, Google Fonts + 13 more | Find emails |
| databridgemarketresearch.com | #41,038 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| online-stopwatch.com | #41,042 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 8 more | Find emails |
| smartolt.com | #41,043 | Apache, Bootstrap, Cookiebot + 6 more | Find emails |
| writeupcafe.com | #41,049 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| ipipe.ru | #41,055 | Let's Encrypt, Nginx, Webflow + 1 more | Find emails |
| zona.media | #41,061 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 4 more | Find emails |
| yosmart.com | #41,074 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 11 more | Find emails |
| dmsolutions.de | #41,121 | Consentmanager.net, Font Awesome, Google Tag Manager + 9 more | Find emails |
| grizly.com | #41,139 | Amazon API Gateway, Amazon Advertising, Cloudflare + 6 more | Find emails |
| kwalee.com | #41,152 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| switch-bot.com | #41,169 | Cloudflare edge/CDN, Google Fonts, Google Hosted Libraries + 9 more | Find emails |
| syngenta.com | #41,176 | CSC (Digital Brand Services), Drupal, Fastly + 7 more | Find emails |
| easydns.ca | #41,193 | AddToAny, Adobe Fonts (Typekit), Apache + 8 more | Find emails |
| libraryjournal.com | #41,230 | Amazon (ACM), Amazon Route 53, BlueConic + 16 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 →