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 |
|---|---|---|---|
| caeonline.com | #53,835 | ASP.NET, Adobe Fonts (Typekit), Azure API Management + 6 more | Find emails |
| dreamies.de | #53,868 | Apache, Google Identity Services, Let's Encrypt + 3 more | Find emails |
| shopakira.com | #53,881 | Attentive, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| adesignaward.com | #53,897 | Apache, Google Fonts, Let's Encrypt + 3 more | Find emails |
| reef.com | #53,898 | Attentive, Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| animeworld.ac | #53,901 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 15 more | Find emails |
| x10hosting.com | #53,908 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| oclean.com | #53,929 | Cloudflare edge/CDN, Google Hosted Libraries, Google Maps + 5 more | Find emails |
| moneyhouse.ch | #53,953 | Cloudflare Bot Management, Cloudflare edge/CDN, Consentmanager.net + 4 more | Find emails |
| jinfo.net | #53,956 | Apache, Google Analytics, Let's Encrypt + 4 more | Find emails |
| cloudabove.com | #53,963 | Cloudflare Turnstile, Crisp, Font Awesome + 10 more | Find emails |
| supremecourt.uk | #53,994 | Azure API Management, Azure DNS, Azure Front Door + 5 more | Find emails |
| onlinedoctranslator.com | #54,004 | AddToAny, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| smartbill.ro | #54,007 | AOS, Amazon (ACM), Amazon Route 53 + 21 more | Find emails |
| gxo.com | #54,009 | Cloudflare Bot Management, Cloudflare edge/CDN, DigiCert + 2 more | Find emails |
| basketusa.com | #54,010 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 3 more | Find emails |
| wyylde.com | #54,013 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| gnuvpn.com | #54,018 | Google Fonts, Google Tag Manager, Let's Encrypt + 6 more | Find emails |
| yuanta.com.tw | #54,021 | ASP.NET, Akamai Edge DNS, Bootstrap + 8 more | Find emails |
| ikea.com.tr | #54,031 | ASP.NET, CSC (Digital Brand Services), Google Tag Manager + 3 more | Find emails |
| bigblueview.com | #54,076 | Amazon Advertising, Amazon Route 53, DoubleClick (Google Ads) + 14 more | Find emails |
| adnimation.com | #54,146 | All in One SEO, Amazon Route 53, Cloudflare Bot Management + 8 more | Find emails |
| synchronybusiness.com | #54,160 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 12 more | Find emails |
| dday.it | #54,162 | Adobe Fonts, Adobe Fonts (Typekit), Bunny CDN + 15 more | Find emails |
| wielerflits.nl | #54,174 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 9 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 →