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 |
|---|---|---|---|
| fredaldous.co.uk | #108,201 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 5 more | Find emails |
| onlinebookclub.org | #108,212 | Apache, Cloudflare, Font Awesome + 9 more | Find emails |
| rarewaves.com | #108,214 | Bootstrap, Cloudflare edge/CDN, ConsentMo + 9 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| indra.com | #108,240 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| christianscience.com | #108,256 | Adobe Experience Cloud (Launch), Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| vivatube.com | #108,264 | Cloudflare, Google Analytics, Google Fonts + 4 more | Find emails |
| springfieldnewssun.com | #108,283 | Blockthrough, Google Fonts, Google Tag Manager + 5 more | Find emails |
| xcraft.ru | #108,325 | Cloudflare, Google Analytics, Let's Encrypt + 9 more | Find emails |
| qbe.com | #108,329 | Akamai Edge DNS, Amazon CloudFront, Azure API Management + 15 more | Find emails |
| spydialer.com | #108,338 | ASP.NET, Amazon (ACM), Amazon Route 53 + 16 more | Find emails |
| adexone.com | #108,344 | Bootstrap, Express, Font Awesome + 7 more | Find emails |
| krasview.ru | #108,369 | Google Tag Manager, Let's Encrypt, Mail.ru Analytics (Top100) + 4 more | Find emails |
| badgerandblade.com | #108,375 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 11 more | Find emails |
| aptiv.com | #108,376 | ASP.NET, Azure API Management, Azure DNS + 7 more | Find emails |
| businessyab.com | #108,409 | Google AdSense, Let's Encrypt, Nginx + 3 more | Find emails |
| theroar.com.au | #108,426 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| ardetamedia.com | #108,428 | Bootstrap, Cloudflare, Font Awesome + 11 more | Find emails |
| alkante.com | #108,451 | Bootstrap, Font Awesome, Google Fonts + 8 more | Find emails |
| ncrvoyix.com | #108,461 | AWS Lambda, Cloudflare Bot Management, Cloudflare edge/CDN + 5 more | Find emails |
| gempages.net | #108,510 | Cloudflare edge/CDN, CookieYes, Google Fonts + 11 more | Find emails |
| vegasystems.de | #108,523 | Bootstrap, ConsentMo, DigiCert + 8 more | Find emails |
| local3news.com | #108,525 | DoubleClick (Google Ads), Google Fonts, Google Publisher Tag + 7 more | Find emails |
| ziftsolutions.com | #108,537 | Amazon Route 53, DoubleClick (Google Ads), Fastly + 5 more | Find emails |
| linguise.com | #108,546 | Cloudflare, Cloudflare edge/CDN, Google Hosted Libraries + 5 more | Find emails |
| veerotech.net | #108,568 | AddToAny, Bootstrap, Cloudflare + 17 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 →