Security & WAF
4,094 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA Enterprise (0.4%). Google's paid, enterprise-tier bot-detection and risk-scoring service for protecting sites from automated abuse. Detection is homepage-level HTML/header fingerprinting, so a site can run reCAPTCHA Enterprise on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | snapchat.com | #123 (Tranco) | Find emails |
| 2 | scorecardresearch.com | #242 (Tranco) | Find emails |
| 3 | duolingo.com | #472 (Tranco) | Find emails |
| 4 | time.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| hrmos.co | #40,391 | All in One SEO, Amazon (ACM), Amazon CloudFront + 16 more | Find emails |
| ops.co | #40,483 | Google Analytics, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| acomics.ru | #40,836 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| #526 (Tranco) |
| Find emails |
| 5 | ups.com | #658 (Tranco) | Find emails |
| sonnen.cloud |
| #40,901 |
| AWS Lambda, Cloudflare edge/CDN, Google Tag Manager + 7 more |
| Find emails |
| writeupcafe.com | #41,049 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| acvauctions.com | #41,332 | AWS Lambda, Adobe Fonts (Typekit), Amazon CloudFront + 19 more | Find emails |
| tenderly.co | #41,647 | Astro, Atlassian Statuspage, Bootstrap + 16 more | Find emails |
| fishbrain.com | #41,658 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| towson.edu | #41,681 | ASP.NET, Adobe Fonts (Typekit), Azure DNS + 15 more | Find emails |
| gov.hr | #41,803 | Google Analytics, Google Tag Manager, jQuery + 3 more | Find emails |
| journalnow.com | #41,823 | 33Across, Advertising.com, Amazon Advertising + 45 more | Find emails |
| bidspotter.com | #41,893 | ASP.NET, Amazon (ACM), Amazon CloudFront + 17 more | Find emails |
| simplenote.com | #42,220 | Google Trust Services, Nginx, WordPress + 3 more | Find emails |
| en-hyouban.com | #42,354 | Amazon (ACM), Amazon Route 53, Google Analytics + 3 more | Find emails |
| conad.it | #42,636 | Adobe Experience Cloud (Launch), Azure DNS, DigiCert + 4 more | Find emails |
| ikentoo.com | #42,774 | Amazon Route 53, Bizible, Bootstrap + 15 more | Find emails |
| game.es | #42,968 | ASP.NET, ConsentMo, Cookiebot + 6 more | Find emails |
| paxhistoria.co | #43,045 | Cloudflare, Let's Encrypt, Next.js + 4 more | Find emails |
| norma24.de | #43,229 | Akamai Edge DNS, DigiCert, Google Tag Manager + 7 more | Find emails |
| care.org | #43,262 | BrightEdge, Fastly, Google Tag Manager + 13 more | Find emails |
| wbcsd.org | #43,329 | All in One SEO, Cloudflare Turnstile, Cookiebot + 11 more | Find emails |
| xprize.org | #43,429 | ASP.NET, Azure API Management, Bootstrap + 9 more | Find emails |
| radioreference.com | #43,907 | AOS, Amazon (ACM), Amazon CloudFront + 11 more | Find emails |
| pickaweb.co.uk | #44,288 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| inyourarea.co.uk | #44,567 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
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 →