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 |
|---|---|---|---|
| gofundme.com | #1,110 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 22 more | Find emails |
| hltv.org | #1,123 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| fc2.com | #1,135 | Amazon Route 53, DigiCert, Google Analytics + 10 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| dafont.com |
| #1,140 |
| Apache, Consent Framework, Google AdSense + 4 more |
| Find emails |
| pornpics.com | #1,196 | Google Analytics, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| yomiuri.co.jp | #1,200 | Adingo, DoubleClick (Google Ads), Fastly + 8 more | Find emails |
| medallia.com | #1,210 | Adobe Experience Cloud (Launch), Adyen, Amazon Route 53 + 30 more | Find emails |
| lequipe.fr | #1,216 | Let's Encrypt, Permutive | Find emails |
| donga.com | #1,224 | AnyMind Group, Apache, DoubleClick (Google Ads) + 6 more | Find emails |
| parklogic.com | #1,237 | DataTables, Font Awesome, Google Fonts + 11 more | Find emails |
| youporn.com | #1,263 | Amazon Route 53, DebugBear, DoubleClick (Google Ads) + 5 more | Find emails |
| blooket.com | #1,303 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 10 more | Find emails |
| redtube.com | #1,305 | Amazon Route 53, DebugBear, Feedburner + 4 more | Find emails |
| dantri.com.vn | #1,322 | Google Tag Manager, Matomo, Nginx + 1 more | Find emails |
| thisvid.com | #1,347 | Cloudflare, Cloudflare Turnstile, ExoClick + 9 more | Find emails |
| ruliweb.com | #1,350 | Amazon Route 53, Criteo, Daum + 5 more | Find emails |
| gcash.com | #1,356 | AWS Lambda, Adobe Fonts (Typekit), Amazon Route 53 + 15 more | Find emails |
| aznude.com | #1,360 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| fdown.net | #1,373 | Bootstrap, Cloudflare, Cloudflare Turnstile + 8 more | Find emails |
| missav.live | #1,399 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 5 more | Find emails |
| imagefap.com | #1,428 | ExoClick, Google Analytics, Google Tag Manager + 5 more | Find emails |
| rat.xxx | #1,489 | Cloudflare, ExoClick, Google Analytics + 4 more | Find emails |
| sondakika.com | #1,499 | ASP.NET, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| porn300.com | #1,512 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 4 more | Find emails |
| missav123.com | #1,516 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 4 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 →