⚡ Authentication in the United Kingdom

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 United Kingdom of Great Britain and Northern Ireland (UK) is a Western European country with a population of over 67 million people.

According to our statistics, authentication services are detected on 0.8% of websites from the United Kingdom.

Statistics based on 159K+ analyzed websites. About this data

⭐ Most Popular in 2026

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

The most popular is Google Identity with an impressive share of 42%, followed by Amazon Cognito with 15.8% and Facebook Login with 8.4%.

Google Identity 42%
Amazon Cognito 15.8%
Facebook Login 8.4%
Auth0 8%
Google Sign-In 6.2%
Supabase 4.6%
Microsoft Identity Platform 4.3%
Sign In with Apple 3.3%
Microsoft Entra ID 3%
Firebase Authentication 2.1%
Netlify Identity 1.7%
Keycloak 1.4%
Okta 1.2%
Sign In with LinkedIn 1.1%
Clerk 0.7%

🚀 Highlights

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

2. Amazon Cognito ^(-6)
9. Microsoft Entra ID ^(-4)
11. Netlify Identity ^(-4)
14. Sign In with LinkedIn ^(-2)
15. Clerk ^(-2)
16. Shibboleth ^(-2)
18. Login with Discord ^(-1)

✨ Best Authentication Services

Below is a more detailed list of 18 authentication services used on sites from the United Kingdom, 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	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$$$	15.8%
3	Facebook Login Menlo Park, California, United States A convenient way for Facebook's billions of global users to log into your app or website. Free	8.4%
4	Auth0 San Francisco, California, United States A cloud-based identity and authentication management platform that allows developers to add authentication to their applications. Free$35+/month	8%
5	Google Sign-In Mountain View, California, United States A deprecated JavaScript library that has been superseded by Google Identity Services for Web. FreeLegacy	6.2%
6	Supabase Singapore An open-source backend-as-a-service platform based on PostgreSQL. FreeOpen source$25+/month	4.6%
7	Microsoft Identity Platform Redmond, Washington, United States A cloud identity service that allows your users and customers to sign in to your applications using their Microsoft identities or social accounts. Free$6+/user/month	4.3%
8	Sign In with Apple Cupertino, California, United States A service provided by Apple that allows users to sign in to apps and websites using their Apple IDs. $99/year	3.3%
9	Microsoft Entra ID Redmond, Washington, United States A cloud-based identity and access management solution. Free$6+/user/month	3%
10	Firebase Authentication Mountain View, California, United States A backend authentication service that enables applications to sign in users using email and password, third-party identity providers, email links, and phone numbers. Free tier$$$	2.1%
11	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	1.7%
12	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	1.4%
13	Okta San Francisco, California, United States A cloud-based identity and access management platform built around a centralized directory of user and customer profiles. $1,500+/year	1.2%
14	Sign In with LinkedIn Mountain View, California, United States An authentication service that allows sites and applications to use the LinkedIn sign-in feature. Free	1.1%
15	Clerk San Francisco, California, United States An authentication and user management service for Next.js, Remix, Nuxt, React, Vue.js, and other frameworks that provides prebuilt interfaces and APIs to handle user identity, sessions, and access control. Free$25+/month	0.7%
16	Shibboleth Bristol, United Kingdom A SAML-based single sign-on web application that is widely used in academic organizations. FreeOpen source€2,750+/year	0.7%
17	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	0.4%
18	Login with Discord San Francisco, California, United States User authentication with Discord credentials. Free	0.08%

👉 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 159,035 websites from the United Kingdom.
We currently track the presence of 20 authentication services across the web.
Of these, 18 were detected on websites from the United Kingdom.
Statistics were last calculated on April 6, 2026.
For more details, see our methodology and disclaimer.