Security & WAF
51,718 of the 965,200 top sites in our Tranco top-1M census run Cloudflare Bot Management (5.4%). Cloudflare's product for detecting and mitigating automated bot traffic on a site. Detection is homepage-level HTML/header fingerprinting, so a site can run Cloudflare Bot Management on other pages without it showing here.
Other security & waf
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | cloudflare.com | #3 (Tranco) | Find emails |
| 2 | twitter.com | #17 (Tranco) | Find emails |
| 3 | linkedin.com | #18 (Tranco) | Find emails |
| 4 | x.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| cloudflare.com | #3 | Astro, Cloudflare edge/CDN, Google Tag Manager + 2 more | Find emails |
| twitter.com | #17 | Cloudflare edge/CDN, Envoy, Let's Encrypt | Find emails |
| linkedin.com | #18 | AppNexus (Xandr), Azure DNS, Cloudflare edge/CDN + 2 more | Find emails |
| #54 (Tranco) |
| Find emails |
| 5 | chatgpt.com | #70 (Tranco) | Find emails |
| x.com |
| #54 |
| Cloudflare edge/CDN, Envoy, Let's Encrypt |
| Find emails |
| chatgpt.com | #70 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| vimeo.com | #71 | Amazon Route 53, Cloudflare edge/CDN, Fastly + 8 more | Find emails |
| roblox.com | #73 | Cloudflare Web Analytics, Cloudflare edge/CDN, Sectigo + 1 more | Find emails |
| zoom.us | #76 | Amazon Route 53, BrightEdge, Cloudflare edge/CDN + 4 more | Find emails |
| workers.dev | #86 | Astro, Cloudflare, Cloudflare edge/CDN + 3 more | Find emails |
| epicgames.com | #121 | Amazon Route 53, Cloudflare edge/CDN, Google Trust Services | Find emails |
| nih.gov | #126 | Cloudflare Web Analytics, Cloudflare edge/CDN, ConsentMo + 7 more | Find emails |
| w3.org | #184 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| rubiconproject.com | #190 | Amazon Route 53, Cloudflare edge/CDN, Fastly + 5 more | Find emails |
| vungle.com | #194 | Akamai Edge DNS, Cloudflare edge/CDN, Font Awesome + 9 more | Find emails |
| cpanel.net | #209 | Cloudflare edge/CDN, ConsentMo, Font Awesome + 5 more | Find emails |
| sciencedirect.com | #216 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 1 more | Find emails |
| t.co | #219 | Cloudflare edge/CDN, Envoy, Let's Encrypt | Find emails |
| researchgate.net | #221 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| sourceforge.net | #229 | Cloudflare edge/CDN, Let's Encrypt, Matomo | Find emails |
| nist.gov | #231 | Cloudflare Stream, Cloudflare edge/CDN, ConsentMo + 7 more | Find emails |
| canva.com | #233 | Amazon (ACM), Amazon Route 53, Cloudflare edge/CDN | Find emails |
| roku.com | #245 | Amazon Route 53, Cloudflare edge/CDN, Google Analytics + 5 more | Find emails |
| hubspot.com | #249 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| openai.com | #251 | Azure DNS, Cloudflare edge/CDN, Let's Encrypt | Find emails |
| forter.com | #259 | 6sense, Cloudflare edge/CDN, Forter + 7 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 965,200-domain Tranco top-1M census (run top1m-2026-08-20-full), snapshot August 21, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →