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 |
|---|---|---|---|
| mcdonalds.com.br | #118,296 | Adyen, Brightcove, Cloudflare + 14 more | Find emails |
| dineplan.com | #118,303 | AOS, Amazon (ACM), Amazon Route 53 + 17 more | Find emails |
| hotelsbarriere.com | #118,313 | DigiCert, Netlify, Storyblok | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| weareplanet.com |
| #118,316 |
| Apache, Azure DNS, DigiCert + 7 more |
| Find emails |
| bitcotasks.com | #118,318 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 7 more | Find emails |
| tnc.org | #118,325 | Adobe Experience Manager Edge Delivery (Helix RUM), Amazon Route 53, Apache + 9 more | Find emails |
| webnode.ru | #118,347 | Amazon Route 53, Convert, DoubleClick (Google Ads) + 7 more | Find emails |
| pollster.pl | #118,352 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| ket.org | #118,360 | Bootstrap, DoubleClick (Google Ads), Foundation + 12 more | Find emails |
| gaming1.com | #118,370 | ASP.NET, Cloudflare, Cloudflare Bot Management + 7 more | Find emails |
| flugladen.de | #118,376 | Akamai Edge DNS, Cloudflare Web Analytics, DigiCert + 6 more | Find emails |
| collcard.com | #118,377 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| careernet.gr | #118,393 | AOS, ASP.NET, Adman + 12 more | Find emails |
| grenade.com | #118,429 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 21 more | Find emails |
| clore.ai | #118,430 | Cloudflare, Cloudflare edge/CDN, Crisp + 13 more | Find emails |
| azko.fr | #118,465 | AWS Lambda, ClickTale (Contentsquare), Cloudflare edge/CDN + 10 more | Find emails |
| immihelp.com | #118,469 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 8 more | Find emails |
| cede.de | #118,489 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 2 more | Find emails |
| pussytorrents.org | #118,515 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 more | Find emails |
| tanglednetwork.com | #118,521 | AOS, Astro, Google Analytics + 6 more | Find emails |
| affilicon.net | #118,522 | Amazon Route 53, Bootstrap, Google Ads Conversion + 12 more | Find emails |
| mines.com.co | #118,525 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| bronxzoo.com | #118,528 | Amazon (ACM), Google Analytics, Google Tag Manager + 4 more | Find emails |
| taikoscan.io | #118,539 | ASP.NET, Bootstrap, Cloudflare + 9 more | Find emails |
| clip.mx | #118,574 | AWS Lambda, Amazon CloudFront, Amazon Route 53 + 25 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 →