⚡ Authentication in the Czech Republic

Authentication services enable developers to integrate third-party authentication into their websites and applications, allowing users to sign in with accounts from identity providers such as Google, Facebook, Apple, Microsoft, and Discord.

The Czech Republic is a Central European country with a population of around 10.5 million people.

According to our statistics, authentication services are detected on 0.7% of websites from the Czech Republic.

Statistics based on 37K+ analyzed websites. About this data

⭐ Most Popular in 2026

The following chart shows the top authentication services in the Czech Republic in 2026, based on market share.

The most popular is Google Identity with an impressive share of 42.2%, followed by Facebook Login with 41.8% and Google Sign-In with 19.1%.

Google Identity 42.2%
Facebook Login 41.8%
Google Sign-In 19.1%
Sign In with Apple 8%
Supabase 2%
Auth0 1.6%
Auth.js 1.6%
Microsoft Identity Platform 1.2%
Keycloak 1.2%
Amazon Cognito 0.8%
Firebase Authentication 0.8%
Microsoft Entra ID 0.4%
Netlify Identity 0.4%

🚀 Highlights

Here is a list of the top services that are more popular in the Czech Republic than worldwide.
Differences between global and country rankings are shown in parentheses.

4. Sign In with Apple ^(-1)
5. Supabase ^(-1)
7. Auth.js ^(-7)
9. Keycloak ^(-1)
12. Microsoft Entra ID ^(-1)
13. Netlify Identity ^(-2)

✨ Best Authentication Services

Below is a more detailed list of 13 authentication services used on sites from the Czech Republic, ranked by their market share.

Rank	Name	Market share
1	Google Identity Mountain View, California, United States A suite of services and APIs from Google that handles user sign-up, sign-in, and authorization across web and mobile apps. Free	42.2%
2	Facebook Login Menlo Park, California, United States A convenient way for Facebook's billions of global users to log into your app or website. Free	41.8%
3	Google Sign-In Mountain View, California, United States A deprecated JavaScript library that has been superseded by Google Identity services for Web. FreeLegacy	19.1%
4	Sign In with Apple Cupertino, California, United States A service provided by Apple that allows users to sign in to apps and websites using their Apple IDs. $99/year	8%
5	Supabase Singapore An open-source backend-as-a-service platform based on PostgreSQL. FreeOpen source$25+/month	2%
6	Auth0 San Francisco, California, United States A cloud-based identity and authentication management platform that allows developers to add authentication to their applications. Free$35+/month	1.6%
7	Auth.js San Francisco, California, United States An open-source authentication solution that integrates with Next.js, Nuxt, Qwik, and other modern JavaScript frameworks to handle user sign-in, session management, and access control. FreeOpen source	1.6%
8	Microsoft Identity Platform Redmond, Washington, United States A cloud identity service that allows your users and customers to sign in to your applications using their Microsoft identities or social accounts. Free$6+/user/month	1.2%
9	Keycloak San Francisco, California, United States An open-source identity and access management solution that provides user federation, strong authentication, user management, fine-grained authorization, and more. FreeOpen source	1.2%
10	Amazon Cognito Seattle, Washington, United States A user identity service by Amazon Web Services that lets you add user sign-up, sign-in, and access control to your web and mobile apps. Free tier$$$	0.8%
11	Firebase Authentication Mountain View, California, United States A backend authentication service that enables applications to sign in users using email and password, third-party identity providers, email links, and phone numbers. Free tier$$$	0.8%
12	Microsoft Entra ID Redmond, Washington, United States A cloud-based identity and access management solution. Free$6+/user/month	0.4%
13	Netlify Identity San Francisco, California, United States A plug-and-play microservice for handling site functionalities like signups, logins, password recovery, user metadata, and roles. $99+/month	0.4%

👉 See Also

🌎 Authentication in other countries

🗃️ About This Data

We evaluate the popularity of technologies based on the number of websites where we detect their usage.
Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
This report is based on the analysis of 37,156 websites from the Czech Republic.
We currently track the presence of 20 authentication services across the web.
Of these, 13 were detected on websites from the Czech Republic.
Statistics were last calculated on May 5, 2026.
For more details, see our methodology and disclaimer.