Insights on Identity, Security & Keycloak
Tutorials, deep dives, and best practices from the Skycloak team.
Keycloak ‘Account Already Exists’ During Identity Brokering
Fix the Keycloak 'account already exists' error during social login and identity brokering: the first-login flow, account linking, and trusting…
10 min read
Keycloak Theme Not Loading: Causes and Fixes
Fix Keycloak custom themes not loading: theme caching, the themes directory and provider structure, theme selection, and Quarkus dev vs…
9 min read
Keycloak Not Sending Emails? How to Fix It
Fix Keycloak email problems: SMTP configuration, TLS/SSL ports, authentication, the 'from' address, app passwords, and testing the connection in the…
10 min read
Is Keycloak Right for Your B2B SaaS? A Decision Guide
Is Keycloak right for your B2B SaaS? An honest decision guide on multi-tenancy, enterprise SSO, SCIM, flat pricing, and the…
11 min read
Fixing Keycloak 502 Bad Gateway Errors
Fix Keycloak 502 Bad Gateway errors behind a reverse proxy: proxy headers, timeouts, health checks, hostname configuration, and startup timing…
10 min read
Fixing CORS Errors with Keycloak
Fix Keycloak CORS errors: configure Web Origins on the client, understand preflight requests, and resolve 'blocked by CORS policy' issues…
10 min read
Zitadel Alternatives for Developers
Compare the best Zitadel alternatives for developers: Keycloak, Authentik, Ory, FusionAuth, SuperTokens, Auth0, and WorkOS, by license, deployment, and protocols.
13 min read
Token Introspection vs Local JWT Validation in Keycloak
Keycloak token introspection vs local JWT validation: how each works, the latency and revocation trade-offs, and which to use for…
10 min read
Keycloak vs Authelia: Self-Hosted Auth Comparison
Keycloak vs Authelia compared across architecture, protocols, MFA, federation, and footprint. A fair, honest guide to picking the right self-hosted…
11 min read
Keycloak Offline Tokens Explained
What Keycloak offline tokens are, how the offline_access scope works, how they differ from regular refresh tokens, and when to…
11 min read
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