Authentication & Identity
1,704 of the 1,000,000 top sites in our Tranco top-1M census run Firebase Authentication (0.2%). Google Firebase's authentication service, providing sign-in via email, phone, and third-party identity providers. Detection is homepage-level HTML/header fingerprinting, so a site can run Firebase Authentication on other pages without it showing here.
Other authentication & identity
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | gazzetta.it | #1,234 (Tranco) | Find emails |
| 2 | myqnapcloud.com | #4,601 (Tranco) | Find emails |
| 3 | yna.co.kr | #5,125 (Tranco) | Find emails |
| 4 | author.today |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| gazzetta.it | #1,234 | DoubleClick (Google Ads), Fastly, Google Funding Choices + 6 more | Find emails |
| myqnapcloud.com | #4,601 | Amazon (ACM), Google Fonts, Google Tag Manager + 3 more | Find emails |
| yna.co.kr | #5,125 | Amazon CloudFront, Amazon S3, Citrix NetScaler + 12 more | Find emails |
| #6,372 (Tranco) |
| Find emails |
| 5 | europapress.es | #6,523 (Tranco) | Find emails |
| author.today | #6,372 | ASP.NET, Cloudflare, DDoS-Guard + 8 more | Find emails |
| europapress.es | #6,523 | Azure API Management, Didomi, Google Analytics + 6 more | Find emails |
| alison.com | #6,724 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 24 more | Find emails |
| ensonhaber.com | #6,938 | Cloudflare edge/CDN, DoubleClick (Google Ads), Google Fonts + 5 more | Find emails |
| portfolio.hu | #7,081 | DoubleClick (Google Ads), Gemius, Google Publisher Tag + 5 more | Find emails |
| otempo.com.br | #7,174 | Akamai Edge DNS, Algolia, Amazon Advertising + 13 more | Find emails |
| crowncoinscasino.com | #7,196 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 5 more | Find emails |
| komiku.org | #7,588 | Cloudflare, DDoS-Guard, Google Analytics + 6 more | Find emails |
| daily.co.jp | #7,916 | Amazon Advertising, DoubleClick (Google Ads), Fastly + 8 more | Find emails |
| pocketoption.com | #8,040 | AppsFlyer, Google Fonts, Google Tag Manager + 11 more | Find emails |
| radios.com.br | #8,095 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| trustedshops.com | #8,525 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| drikpanchang.com | #8,689 | Google AdSense, Google Analytics, Google Cloud DNS + 12 more | Find emails |
| rst.ua | #8,853 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| naurok.com.ua | #8,959 | Bootstrap, Cloudflare, Cloudflare Turnstile + 11 more | Find emails |
| servicewebly.com | #9,202 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| babel.com | #10,091 | Bootstrap, Consent Framework, Google AdSense + 10 more | Find emails |
| buffbuff.com | #10,580 | Apache APISIX, Cloudflare, Google Analytics + 7 more | Find emails |
| thejournal.ie | #11,631 | Amazon (ACM), Bugsnag, Cloudflare + 19 more | Find emails |
| ettoday.net | #12,831 | Google Analytics, Google Tag Manager, Meta Pixel + 3 more | Find emails |
| vevor.com | #12,975 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| stltoday.com | #12,984 | Bluesky, DoubleClick (Google Ads), Font Awesome + 14 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 →