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 |
|---|---|---|---|
| getgobot.com | #71,177 | AWS Lambda, Amazon (ACM), Amazon CloudFront + 16 more | Find emails |
| thecitizen.co.tz | #71,192 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 8 more | Find emails |
| microhost.pl | #71,197 | Google Tag Manager, LiteSpeed | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| korzik.net |
| #71,199 |
| AdRiver, DataLife Engine, Google AdSense + 11 more |
| Find emails |
| fnu.ac.fj | #71,210 | AOS, Apache, Bootstrap + 8 more | Find emails |
| nakanune.ru | #71,214 | Bootstrap, Google Analytics, Google Hosted Libraries + 10 more | Find emails |
| meendo.net | #71,223 | Bootstrap, Cloudflare, Google Analytics + 6 more | Find emails |
| amazonforum.com | #71,226 | Adobe Advertising Cloud, Adobe Analytics, Adobe Audience Manager + 13 more | Find emails |
| febas.de | #71,232 | Apache, Bootstrap, Font Awesome + 6 more | Find emails |
| hb.se | #71,243 | ASP.NET, Cookiebot, Fancybox + 6 more | Find emails |
| logishotels.com | #71,247 | Cloudflare, Cloudflare edge/CDN, Google Maps + 6 more | Find emails |
| planbookedu.com | #71,273 | Google Ads Conversion, Google Analytics, Google Fonts + 6 more | Find emails |
| in.canon | #71,297 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| aosom.co.uk | #71,298 | Akamai edge/CDN, Akamai mPulse, Amazon Route 53 + 5 more | Find emails |
| peachmode.com | #71,305 | Amazon Route 53, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| erail.in | #71,342 | ASP.NET, Google AdSense, Google Analytics + 9 more | Find emails |
| el-clan.com | #71,347 | Cloudflare edge/CDN, Judge.me, Let's Encrypt + 4 more | Find emails |
| fox13memphis.com | #71,348 | Blockthrough, DoubleClick (Google Ads), Google Fonts + 7 more | Find emails |
| relevantmagazine.com | #71,377 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 14 more | Find emails |
| hgsbs.com | #71,381 | AOS, ASP.NET, Bootstrap + 8 more | Find emails |
| brudam.com.br | #71,382 | Amazon Route 53, Elementor, Google Fonts + 10 more | Find emails |
| plotaroute.com | #71,384 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 8 more | Find emails |
| ataaof.edu.tr | #71,439 | Font Awesome, Google Ads Conversion, Google Analytics + 17 more | Find emails |
| foursixty.com | #71,460 | Adobe Fonts (Typekit), BambooHR, Cloudflare + 18 more | Find emails |
| hobbydb.com | #71,470 | Awin, CJ Affiliate, Cloudflare + 11 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 →