Websites using Facebook Login
We detect Facebook Login on 3,087 websites, 0.02% of the 12.7 million live sites we have crawled — and 2.4% of the 12,113 most popular, from gofundme.com to mynavi.jp.
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Top sites using Facebook Login
Full list (3,087 sites) →Filter by rank and language. Contact pages and e-mails included.
Download a free sample →Where it is used
From the domain extension, not from where the site is hosted.
Country domains
- Japan.jp241
- Poland.pl81
- Italy.it53
- Brazil.br51
- Vietnam.vn42
- India.in41
Languages
- English
- Japanese
- Spanish
- French
- Portuguese
Facebook Login at a glance
We detect Facebook Login on 3,087 websites, 0.02% of the 12.7 million live sites we have crawled. It ranks 4th out of 29 in the Authentication category. It is more common among the most popular sites: 2.4% of the top 12,113 use it (289), and 0.23% of the top 1.3 million (3,092). Sites using it often also use Google Analytics, jQuery and Google Tag Manager. Its main alternatives in Authentication are Google Sign-in, Linkedin Sign-in and Apple Sign-in. The sites using it are most often in English, followed by Japanese and Spanish.
Most popular sites: domains in the top 10,000 or the top 1 million of at least one public ranking (Tranco, Majestic, Open PageRank).
Facebook Login is a social authentication service provided by Meta that allows users to sign into third-party websites and applications using their Facebook credentials instead of creating new accounts. The service implements OAuth 2.0 protocol to securely authenticate users and, with permission, provides access to user profile information like name, email, profile picture, and friends list. Facebook Login reduces friction in the registration process, potentially increasing conversion rates and user acquisition for applications. It provides developers with SDKs for web, iOS, and Android platforms with features like Login Button, Login Dialog, and Account Kit. The service includes permission management where users explicitly grant access to specific data categories, with developers requesting only necessary permissions. Facebook Login integrates with Facebook's social graph, enabling features like friend finding, social sharing, and personalized experiences based on Facebook data. The platform provides analytics on login methods, user demographics, and conversion metrics through Facebook Analytics and App Events.
Alternatives
Counts follow the sites we crawl. Our crawl grew sharply in October 2026, so part of that month's rise reflects coverage, not adoption.
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