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 |
|---|---|---|---|
| explorajourneys.com | #81,931 | Adobe Experience Cloud (Launch), Adobe Experience Manager Edge Delivery (Helix RUM), Amazon Route 53 + 7 more | Find emails |
| testgorilla.com | #81,934 | Amazon Route 53, Contentful, Cookiebot + 7 more | Find emails |
| naijapornsite.com | #81,935 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 7 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| tramasmas.com | #81,949 | Cloudflare, Cloudflare edge/CDN, ConsentMo + 8 more | Find emails |
| wcfcourier.com | #81,954 | 33Across, Advertising.com, Amazon Advertising + 45 more | Find emails |
| amizone.net | #81,971 | ASP.NET, Azure DNS, Bootstrap + 5 more | Find emails |
| myxplora.com | #82,029 | Bazaarvoice, Cloudflare edge/CDN, Klaviyo + 6 more | Find emails |
| zouk.co.in | #82,052 | Cloudflare edge/CDN, GoAffPro, GoKwik + 11 more | Find emails |
| idahopress.com | #82,068 | Blockthrough, Cloudflare edge/CDN, Google Fonts + 9 more | Find emails |
| adm-nao.ru | #82,081 | Bootstrap, Google Fonts, Moment.js + 6 more | Find emails |
| backiee.com | #82,084 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| ulefone.com | #82,088 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 6 more | Find emails |
| homecenter.co.il | #82,091 | Bootstrap, Cloudflare edge/CDN, Google Tag Manager + 8 more | Find emails |
| kaia.io | #82,094 | AWS Lambda, Adobe Fonts (Typekit), Amazon CloudFront + 19 more | Find emails |
| lt-nn.net | #82,099 | Backbone.js, Bootstrap, DDoS-Guard + 14 more | Find emails |
| fcw.com | #82,112 | Adobe Fonts (Typekit), Azure DNS, Azure Front Door + 13 more | Find emails |
| dogepick.io | #82,132 | Bootstrap, Chart.js, Cloudflare + 8 more | Find emails |
| diariohuarpe.com | #82,136 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 11 more | Find emails |
| rudoramtv.org | #82,137 | DataLife Engine, Let's Encrypt, Nginx + 2 more | Find emails |
| tuttoannunci.org | #82,138 | ASP.NET, DigiCert, Google AdSense + 6 more | Find emails |
| inmanga.com | #82,139 | ASP.NET, Bootstrap, Cloudflare + 11 more | Find emails |
| icewarp.com | #82,144 | AOS, Braintree, DigitalOcean Spaces + 26 more | Find emails |
| wexphotovideo.com | #82,170 | ASP.NET, Azure API Management, Bootstrap + 14 more | Find emails |
| amarstock.com | #82,183 | AddThis, Bootstrap, Font Awesome + 15 more | Find emails |
| climate-kic.org | #82,192 | Apache, CookieYes, CrazyEgg + 15 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 →