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 |
|---|---|---|---|
| vendhq.com | #15,827 | Amazon Route 53, Bizible, Bootstrap + 15 more | Find emails |
| azuredatabricks.net | #15,875 | Azure DNS, DigiCert, OneTrust + 1 more | Find emails |
| buffalonews.com | #15,910 | 33Across, Advertising.com, Amazon Advertising + 40 more | Find emails |
| #526 (Tranco) |
| Find emails |
| 5 | ups.com | #658 (Tranco) | Find emails |
| allmylinks.com | #16,265 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 11 more | Find emails |
| honto.jp | #16,335 | A8.net, Adobe Analytics, DoubleClick (Google Ads) + 14 more | Find emails |
| devtodev.com | #16,353 | AdRoll, Amazon (ACM), Amazon Route 53 + 15 more | Find emails |
| postandcourier.com | #16,443 | Adobe Fonts, Adobe Fonts (Typekit), DoubleClick (Google Ads) + 13 more | Find emails |
| hyundaiusa.com | #16,577 | Bambuser, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| zennioptical.com | #16,652 | Akamai Bot Manager, Akamai edge/CDN, Botify + 14 more | Find emails |
| flashback.org | #16,899 | Bootstrap, Google Analytics, Google Tag Manager + 4 more | Find emails |
| policybazaar.com | #16,918 | Akamai Bot Manager, Akamai edge/CDN, Amazon Route 53 + 10 more | Find emails |
| dwell.com | #17,008 | Amazon (ACM), Amazon Route 53, cdnjs + 1 more | Find emails |
| creema.jp | #17,115 | Amazon (ACM), Cloudflare, Font Awesome + 6 more | Find emails |
| milesplit.com | #17,125 | Amazon (ACM), Amazon Route 53, Bootstrap + 14 more | Find emails |
| hallmark.com | #17,130 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Cloudflare edge/CDN + 7 more | Find emails |
| nwf.org | #17,138 | Bootstrap, Cloudflare, CrazyEgg + 17 more | Find emails |
| plus.net | #17,172 | Apache, DigiCert, Dynatrace + 8 more | Find emails |
| masters.com | #17,234 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai Edge DNS + 5 more | Find emails |
| umb.edu | #17,280 | Amazon (ACM), Amazon CloudFront, Apache + 8 more | Find emails |
| is.co.za | #17,303 | Akamai edge/CDN, Akamai mPulse, DigiCert + 5 more | Find emails |
| tucson.com | #17,490 | 33Across, Advertising.com, Amazon Advertising + 44 more | Find emails |
| nova.edu | #17,800 | Apache, Bootstrap, Citrix NetScaler + 14 more | Find emails |
| roberthalf.com | #17,920 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| worten.pt | #18,053 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 2 more | Find emails |
| eurobet.it | #18,147 | Adobe Experience Cloud (Launch), AppsFlyer, Cloudflare Bot Management + 9 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 →