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 |
|---|---|---|---|
| omoda-jaecoo.fr | #100,631 | Cloudflare edge/CDN, Cookiebot, Google Tag Manager + 4 more | Find emails |
| otaclub.jp | #100,640 | DigiCert, Font Awesome, Google Analytics + 7 more | Find emails |
| quiniela15.com | #100,686 | Amazon Route 53, DoubleClick (Google Ads), Google AdSense + 9 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| satsport.in | #100,723 | Bootstrap, Cloudflare, Cloudflare Turnstile + 8 more | Find emails |
| smsv.com.ar | #100,747 | Drupal, Google Tag Manager, Microsoft 365 + 7 more | Find emails |
| spag.com | #100,755 | ASP.NET, Google Analytics, Google Fonts + 4 more | Find emails |
| thedrchoice.com | #100,783 | Cloudflare edge/CDN, Font Awesome, GoKwik + 8 more | Find emails |
| topliker.net | #100,803 | Bootstrap, Font Awesome, Google AdSense + 12 more | Find emails |
| toykoo.in | #100,806 | AOS, Bootstrap, Cloudflare edge/CDN + 13 more | Find emails |
| trendzjewellery.com | #100,809 | Cloudflare edge/CDN, Let's Encrypt, Shopify + 2 more | Find emails |
| volta.com.tr | #100,846 | Cloudflare, Cloudflare edge/CDN, FlagCDN + 5 more | Find emails |
| xn--pckua2c4hla2f9421e4lya.com | #100,878 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| sdlegislature.gov | #100,902 | Azure API Management, Google Analytics, Google Tag Manager + 3 more | Find emails |
| ardis.ru | #100,909 | Bootstrap, Cloudflare, Font Awesome + 10 more | Find emails |
| getaroom.com | #100,953 | Amazon (ACM), Amazon Route 53, New Relic + 5 more | Find emails |
| pier1.com | #100,966 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 9 more | Find emails |
| hsj.co.uk | #100,979 | ASP.NET, Amazon (ACM), Amazon CloudFront + 14 more | Find emails |
| skyroam.com | #100,988 | Amazon Advertising, Amazon Route 53, Cloudflare edge/CDN + 9 more | Find emails |
| brighton.com | #100,989 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 15 more | Find emails |
| zekond.com | #101,023 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| chu-lan.ru | #101,025 | Apache, Bootstrap, Font Awesome + 6 more | Find emails |
| guardianlv.com | #101,050 | Cloudflare, Elementor, Font Awesome + 9 more | Find emails |
| datalogic.com | #101,070 | CSC (Digital Brand Services), Google Fonts, Google Tag Manager + 5 more | Find emails |
| egba.eu | #101,071 | Font Awesome, Google Analytics, Google Fonts + 12 more | Find emails |
| ast.ru | #101,072 | Bitrix, Cloudflare, DDoS-Guard + 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 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →