# Authelia > Publicly sourced profile assembled by Optimly, in the Optimly AI Brand Index. Last refreshed 2026-10-04. - **Business Profile:** https://optimly.ai/brand/authelia - **Dataset:** https://optimly.ai/brand/authelia.json - **Markdown:** https://optimly.ai/brand/authelia/llms.txt - **Official website:** https://authelia.com - **Slug:** authelia - **Categories:** cybersecurity ## Overview - **Tagline:** Extremely lightweight (container < 20MB, memory < 30MB); blazing fast performance (Go & React, milliseconds for auth policies, 100ms login times); highly efficient (low CPU usage); security-by-design principles; comprehensive login regulation (brute force prevention); built-in password reset functionality; versatile single sign-on via session cookie, OpenID Connect, or Trusted Headers; granular authorization policies; user identity validation; high availability and scalability (Kubernetes support); support for multi-factor and passwordless authentication (Passkeys, OTP, Mobile Push, WebAuthn); OpenID Certified™. Source: Brand's website (https://authelia.com) · 2026-10-04 - **Description:** Authelia is an open-source, Apache 2.0 licensed authentication and authorization server and web portal. It provides multi-factor authentication (MFA) and single sign-on (SSO) for applications, acting as an OpenID Connect 1.0 Provider and companion for common reverse proxies. It is designed to be lightweight, fast, efficient, secure by design, and scalable. Source: Brand's website (https://authelia.com) · 2026-10-04 ## Offerings - **Core capabilities:** Open-source authentication and authorization server; Multi-factor authentication (MFA) and single sign-on (SSO) portal; OpenID Connect 1.0 Provider. Source: Brand's website (https://authelia.com) · 2026-10-04 - **Pricing:** Open-source (Apache 2.0 Licensed); community-supported, with financial contributions accepted for security audits. Source: Brand's website (https://authelia.com) · 2026-10-04 ## Audience - **Target industry:** Organizations and businesses seeking to secure their applications with robust authentication and authorization; developers integrating IAM solutions; small to large scale application deployments. Source: Brand's website (https://authelia.com) · 2026-10-04 Page last updated 2026-10-17.