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 |
|---|---|---|---|
| onecommerce.io | #80,916 | AOS, Blogger, Bootstrap + 18 more | Find emails |
| oetkerhotels.com | #80,944 | Let's Encrypt, Nuxt.js, Vercel + 2 more | Find emails |
| solpick.io | #80,946 | Bootstrap, Chart.js, Cloudflare + 9 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| zekamashi.net |
| #80,960 |
| AnyMind Group, DoubleClick (Google Ads), Fancybox + 11 more |
| Find emails |
| lamaretail.com | #80,966 | Cloudflare edge/CDN, Let's Encrypt, Meta Pixel + 5 more | Find emails |
| eltelegrafo.com | #80,979 | Cloudflare Bot Management, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| bravisthemes.com | #80,995 | Crisp, Font Awesome, Google Fonts + 5 more | Find emails |
| digibi.ru | #81,031 | Apache, Google Analytics, Google Tag Manager + 4 more | Find emails |
| bnbpick.io | #81,036 | Bootstrap, Chart.js, Cloudflare + 8 more | Find emails |
| boobyday.com | #81,051 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| cloudsigma.com | #81,052 | Amazon CloudFront, Atlassian Cloud, Atlassian Statuspage + 9 more | Find emails |
| salomon.jp | #81,062 | Cloudflare edge/CDN, Google Fonts, Google Tag Manager + 6 more | Find emails |
| graduates24.com | #81,119 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| firewalla.com | #81,120 | Amazon Route 53, Cloudflare edge/CDN, Let's Encrypt + 3 more | Find emails |
| zapdicas.com | #81,127 | Cloudflare, Cloudflare edge/CDN, Google AdSense + 3 more | Find emails |
| fredericknewspost.com | #81,131 | DoubleClick (Google Ads), Google Fonts, Google Publisher Tag + 7 more | Find emails |
| adam4adamsfw.com | #81,154 | Cloudflare, Cloudflare edge/CDN, Google AdSense + 4 more | Find emails |
| taxjustice.net | #81,172 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| hostkey.ru | #81,188 | Cloudflare, DDoS-Guard, Google Analytics + 12 more | Find emails |
| unitiki.com | #81,191 | Amazon Route 53, BotFAQtor, JivoChat + 8 more | Find emails |
| indianets.com | #81,198 | Bootstrap, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| verkami.com | #81,212 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| lovingsiren.com | #81,218 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 6 more | Find emails |
| moov.com.ar | #81,223 | Bootstrap, Cloudflare edge/CDN, Font Awesome + 17 more | Find emails |
| durexindia.com | #81,224 | Cloudflare edge/CDN, GoKwik, Google Analytics + 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 →