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.
| # | 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 |
|---|---|---|---|
| urbact.eu | #134,194 | AddToAny, Drupal, Google Tag Manager + 9 more | Find emails |
| spyderco.com | #134,196 | Cloudflare, Cloudflare edge/CDN, ConsentMo + 15 more | Find emails |
| mivocloud.com | #134,209 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| retail-week.com | #134,217 | Adobe Experience Cloud (Launch), Amazon (ACM), Google AdSense + 10 more | Find emails |
| ku.edu.kw | #134,221 | Drupal, Google Analytics, Google Tag Manager + 3 more | Find emails |
| supersports.co.th | #134,227 | Azure DNS, Cloudflare edge/CDN, Google Analytics + 8 more | Find emails |
| intelbrascloud.com.br | #134,244 | Amazon (ACM), Amazon Route 53, Bootstrap + 2 more | Find emails |
| waveform.com | #134,251 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 12 more | Find emails |
| levelcredit.com | #134,261 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| springs.com.pk | #134,278 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 9 more | Find emails |
| luamaya.com | #134,279 | Cloudflare edge/CDN, ConsentMo, Google Tag Manager + 7 more | Find emails |
| clement.ca | #134,296 | AdRoll, Azure DNS, Bugsnag + 18 more | Find emails |
| obunsha.co.jp | #134,314 | Apache, Chart.js, Google Analytics + 11 more | Find emails |
| socialistworker.org | #134,339 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| thinkglobalhealth.org | #134,340 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 8 more | Find emails |
| truconversion.com | #134,349 | AddToAny, Amazon Route 53, Bootstrap + 19 more | Find emails |
| aerotek.com | #134,350 | ASP.NET, Adobe Experience Cloud (Launch), Adobe Fonts (Typekit) + 15 more | Find emails |
| union-bulletin.com | #134,388 | DoubleClick (Google Ads), Google Cloud DNS, Google Fonts + 7 more | Find emails |
| gearfrost.com | #134,396 | Cloudflare edge/CDN, Google Analytics, Google Tag Manager + 7 more | Find emails |
| azan.kz | #134,413 | Font Awesome, Google Analytics, Google Tag Manager + 10 more | Find emails |
| xxsliv.com | #134,415 | Bootstrap, Let's Encrypt, Nginx + 4 more | Find emails |
| everystudent.com | #134,437 | AddToAny, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| backbone.com | #134,459 | Cloudflare, Cloudflare edge/CDN, GSAP + 11 more | Find emails |
| euttaranchal.com | #134,468 | Apache, Bootstrap, DoubleClick (Google Ads) + 13 more | Find emails |
| matson.com | #134,490 | Amazon Route 53, Apache, BrightEdge + 10 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 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →