⚡ Authentication in Estonia

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.

Estonia is a Northern European country with a population of around 1.3 million people.

According to our statistics, authentication services are detected on 0.6% of websites from Estonia.

⭐ Most Popular in 2026

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

The most popular is Google Identity, which dominates the market with a substantial 53.6% share.
It is followed by Facebook Login with 17.9% and Google Sign-In with 10.7%.

Google Identity 53.6%
Facebook Login 17.9%
Google Sign-In 10.7%
Sign In with Apple 10.7%
Firebase Authentication 7.1%
Keycloak 3.6%
Telegram Login 3.6%

🚀 Highlights

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

4. Sign In with Apple ^(-1)
5. Firebase Authentication ^(-5)
6. Keycloak ^(-3)
7. Telegram Login ^(-13)

✨ Best Authentication Services

Below is a more detailed list of 7 authentication services used on sites from Estonia, 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	53.6%
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	17.9%
3	Google Sign-In Mountain View, California, United States A deprecated JavaScript library that has been superseded by Google Identity Services for Web. FreeLegacy	10.7%
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	10.7%
5	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$$$	7.1%
6	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	3.6%
7	Telegram Login Dubai, United Arab Emirates An easy way to authorize users on your website via the Telegram instant messenger. Free	3.6%

👉 See Also

🌎 Authentication in other countries

Data is based on the analysis of 5,049 websites from Estonia.
Statistics were last calculated on March 21, 2026.
For details, see our methodology and disclaimer.