CAPTCHA & Bot Protection
56,649 of the 965,200 top sites in our Tranco top-1M census run reCAPTCHA (5.9%). 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.
Other captcha & bot protection
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | one.one | #160 (Tranco) | Find emails |
| 2 | pki.goog | #218 (Tranco) | Find emails |
| 3 | t-online.de | #220 (Tranco) | Find emails |
| 4 | dnsmadeeasy.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| metacontratas.com | #196,269 | Font Awesome, Google Fonts, Google Tag Manager + 7 more | Find emails |
| scentoria.co.in | #196,296 | Cloudflare edge/CDN, Google Fonts, Let's Encrypt + 4 more | Find emails |
| astawear.com | #196,342 | Cloudflare edge/CDN, Let's Encrypt, Shopify + 2 more | Find emails |
| #291 (Tranco) |
| Find emails |
| 5 | duckdns.org | #295 (Tranco) | Find emails |
| thedigitalfiles.com | #196,343 | Cloudflare edge/CDN, Google AdSense, Google Cloud DNS + 4 more | Find emails |
| mashini.cl | #196,372 | Cloudflare edge/CDN, Google Fonts, Google Workspace + 7 more | Find emails |
| leolabs.space | #196,385 | Amazon Route 53, ConsentMo, Google Fonts + 5 more | Find emails |
| webnode.gr | #196,389 | Amazon Route 53, Convert, Envoy + 5 more | Find emails |
| pupsik.sg | #196,412 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 4 more | Find emails |
| gundigest.com | #196,430 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 14 more | Find emails |
| athleticbrewing.com | #196,451 | Cloudflare edge/CDN, Google Fonts, Klaviyo + 8 more | Find emails |
| cmhc-schl.gc.ca | #196,463 | Cloudflare, Coveo, DigiCert + 9 more | Find emails |
| vagyaim.hu | #196,473 | ConsentMo, Google Analytics, Google Tag Manager + 6 more | Find emails |
| citroen-aspec.ru | #196,476 | Let's Encrypt, OpenResty | Find emails |
| itv-tuvrheinland.es | #196,491 | Cookiebot | Find emails |
| bravado.de | #196,509 | AB Tasty, Adobe Fonts (Typekit), Cloudflare edge/CDN + 5 more | Find emails |
| gentechat.net | #196,532 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| shomiz.com | #196,566 | Bootstrap, Cloudflare edge/CDN, Font Awesome + 15 more | Find emails |
| aah.co.uk | #196,699 | AB Tasty, Adyen, Brightcove + 16 more | Find emails |
| ambraneindia.com | #196,720 | Axios, Cloudflare edge/CDN, Let's Encrypt + 8 more | Find emails |
| apothema.gr | #196,727 | ASP.NET, Bootstrap, Font Awesome + 7 more | Find emails |
| bblunt.com | #196,751 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 10 more | Find emails |
| bimani.com | #196,758 | Amazon Route 53, Cloudflare edge/CDN, ConsentMo + 11 more | Find emails |
| canellalane.ie | #196,774 | Cloudflare edge/CDN, Let's Encrypt, Shopify + 2 more | Find emails |
| chat.hu | #196,781 | Cloudflare, Font Awesome, Google AdSense + 12 more | Find emails |
| croydon.com.co | #196,800 | Cloudflare edge/CDN, Google Trust Services, Shopify + 3 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 965,200-domain Tranco top-1M census (run top1m-2026-08-20-full), snapshot August 21, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →