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 |
|---|---|---|---|
| cartalk.com | #54,456 | Amazon (ACM), Amazon Route 53, Apache + 11 more | Find emails |
| gameguardian.net | #54,462 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| gazi.edu.tr | #54,480 | AOS, Bootstrap, Font Awesome + 10 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| naciodigital.cat | #54,487 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 15 more | Find emails |
| dooney.com | #54,492 | Cloudflare edge/CDN, Global-e, Google Tag Manager + 7 more | Find emails |
| rainbowshops.com | #54,494 | Attentive, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| beyondmeat.com | #54,503 | Amazon CloudFront, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| vitacoco.com | #54,532 | Bazaarvoice, Cloudflare edge/CDN, ConsentMo + 7 more | Find emails |
| gamedesire.com | #54,560 | Amazon (ACM), Font Awesome, Google Tag Manager + 2 more | Find emails |
| pprune.org | #54,564 | Amazon Advertising, Cloudflare, Cloudflare Web Analytics + 17 more | Find emails |
| lexulous.com | #54,591 | Blockthrough, Cloudflare, Cloudflare edge/CDN + 17 more | Find emails |
| aaha.org | #54,608 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| burodecredito.com.mx | #54,617 | Cloudflare Bot Management, Cloudflare edge/CDN, DigiCert + 2 more | Find emails |
| sexu.name | #54,618 | Cloudflare, Cloudflare Turnstile, Cloudflare Web Analytics + 6 more | Find emails |
| peppermayo.com | #54,628 | Cloudflare edge/CDN, Klaviyo, Let's Encrypt + 7 more | Find emails |
| sanfordhealth.org | #54,653 | Axios, Azure API Management, Azure Front Door + 23 more | Find emails |
| liujo.com | #54,660 | Amazon Pay, Cloudflare edge/CDN, Cookiebot + 13 more | Find emails |
| asphaltgold.com | #54,665 | Amazon Route 53, Cloudflare edge/CDN, Let's Encrypt + 6 more | Find emails |
| voicefive.com | #54,685 | ASP.NET, Amazon Route 53, Google Tag Manager + 6 more | Find emails |
| arkadia.com | #54,720 | Google Analytics, Google Fonts, Google Tag Manager + 6 more | Find emails |
| hofer.at | #54,764 | Adobe Analytics, Adobe Audience Manager, Adobe Experience Cloud (Launch) + 24 more | Find emails |
| 24-7pressrelease.com | #54,776 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| arquivo.pt | #54,783 | Apache, Express, Font Awesome + 8 more | Find emails |
| mybookie.ag | #54,812 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| ashleystewart.com | #54,819 | AdRoll, Cloudflare edge/CDN, Google Tag Manager + 5 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 →