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 |
|---|---|---|---|
| secretmeet.com | #56,354 | Cloudflare, Cloudflare edge/CDN, Fingerprint Pro + 7 more | Find emails |
| incomrealestate.com | #56,370 | Drupal, Elfsight, Google Ads Conversion + 7 more | Find emails |
| numero.wiki | #56,391 | Apache, Bootstrap, DoubleClick (Google Ads) + 5 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| interbank.pe | #56,405 | Adobe Experience Cloud (Launch), Azure DNS, Cloudflare Bot Management + 5 more | Find emails |
| mytrackman.com | #56,435 | ASP.NET, Azure API Management, Azure DNS + 9 more | Find emails |
| todostuslibros.com | #56,438 | Bootstrap, Font Awesome, Google Fonts + 10 more | Find emails |
| fujinkoron.jp | #56,450 | Amazon Advertising, DoubleClick (Google Ads), Google AMP + 16 more | Find emails |
| asiakastieto.fi | #56,451 | AddThis, Adform, Adobe Fonts (Typekit) + 15 more | Find emails |
| box.co.il | #56,454 | Bootstrap, Google Tag Manager, Hotjar + 8 more | Find emails |
| jazztel.com | #56,471 | Envoy, Google Fonts, Google Tag Manager + 7 more | Find emails |
| creamyfabrics.com | #56,487 | Cloudflare edge/CDN, Global-e, Google Tag Manager + 5 more | Find emails |
| nationalworld.com | #56,491 | Cloudflare Bot Management, Cloudflare edge/CDN, Dotmetrics + 9 more | Find emails |
| designhill.com | #56,514 | Amazon CloudFront, Amazon Route 53, Apache + 15 more | Find emails |
| mnsi.net | #56,524 | Apache, DigiCert, Google Analytics + 3 more | Find emails |
| cnb.cz | #56,530 | DigiCert, Google Analytics, Google Tag Manager + 2 more | Find emails |
| 3oaks.com | #56,534 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 1 more | Find emails |
| madgenius.com | #56,565 | Apache, Font Awesome, Foundation + 7 more | Find emails |
| stay-app.com | #56,572 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| field59.com | #56,584 | Cloudflare, DoubleClick (Google Ads), Google Publisher Tag + 6 more | Find emails |
| netfoundry.io | #56,618 | Adobe Fonts (Typekit), Amazon Route 53, ChatGPT Ads Pixel + 10 more | Find emails |
| contextsdk.com | #56,632 | AWS Lambda, Bluesky, Cloudflare + 19 more | Find emails |
| svethostingu.cz | #56,634 | Apache, Bootstrap, DigiCert + 9 more | Find emails |
| book2look.com | #56,645 | ASP.NET, DigiCert, Font Awesome + 9 more | Find emails |
| gostudiopro.com | #56,658 | AOS, Amazon Route 53, Cloudflare Bot Management + 18 more | Find emails |
| sherwood.news | #56,661 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 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 →