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.
| # | 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 |
|---|---|---|---|
| getmodpc.net | #84,651 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 3 more | Find emails |
| i2i.jp | #84,657 | Amazon (ACM), Amazon Route 53, Apache + 4 more | Find emails |
| boomlearning.com | #84,664 | AOS, Amazon Route 53, Bunny Fonts + 15 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| parcelpanel.com |
| #84,679 |
| Axios, Cloudflare, Cloudflare edge/CDN + 9 more |
| Find emails |
| aileen-novel.online | #84,721 | AOS, Bootstrap, Cloudflare + 12 more | Find emails |
| bata.com.pk | #84,740 | ClickTale (Contentsquare), Cloudflare edge/CDN, Google Hosted Libraries + 8 more | Find emails |
| celestino.gr | #84,758 | ASP.NET, Adman, Cloudflare + 9 more | Find emails |
| cinex.com.ve | #84,767 | Apache, Bootstrap, Font Awesome + 12 more | Find emails |
| cklass.com | #84,768 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 8 more | Find emails |
| crocs.com.mx | #84,776 | Azure DNS, Cloudflare edge/CDN, Google Tag Manager + 10 more | Find emails |
| deruedas.com.ar | #84,785 | ASP.NET, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| dreamchance.net | #84,795 | Amazon (ACM), Google Tag Manager, Ruby on Rails + 1 more | Find emails |
| drugcomparison.co.uk | #84,798 | Google Analytics, Google Fonts, Google Tag Manager + 2 more | Find emails |
| ecampuslife.ca | #84,800 | Amazon (ACM), Amazon Route 53, Apache + 5 more | Find emails |
| fcseoulite.me | #84,809 | Cloudflare, Font Awesome, Google AdSense + 9 more | Find emails |
| highfy.pk | #84,836 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 7 more | Find emails |
| hospedin.com | #84,839 | Amazon Route 53, Crisp, Font Awesome + 12 more | Find emails |
| k-hentai.org | #84,864 | Bootstrap, Cloudflare Turnstile, Google Analytics + 5 more | Find emails |
| leonisa.co | #84,878 | Amazon Route 53, Cloudflare edge/CDN, Google Hosted Libraries + 8 more | Find emails |
| limonada.cl | #84,882 | Cloudflare edge/CDN, Google Tag Manager, Judge.me + 6 more | Find emails |
| loandisk.com | #84,887 | Amazon (ACM), Bootstrap, Cloudflare + 7 more | Find emails |
| mallikamanivannan.com | #84,890 | Click.io CMP, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| mercantilandina.com.ar | #84,898 | Azure DNS, Bootstrap, Cloudflare Web Analytics + 10 more | Find emails |
| meupc.net | #84,901 | Awin, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| opaycheckout.com | #84,933 | Amazon Route 53, Cloudflare edge/CDN, DigiCert + 11 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 →