OAuth and OIDC Security Checklist for Web Apps: PKCE, state, nonce, Redirect URIs, and Token Validation
Review OAuth and OIDC web app security with PKCE, exact redirect URIs, state, nonce, issuer checks, token validation, and API authorization.
Expert articles on web security, vulnerabilities, and best practices
Review OAuth and OIDC web app security with PKCE, exact redirect URIs, state, nonce, issuer checks, token validation, and API authorization.
Secure webhook receivers and senders with signature verification, replay protection, idempotency, safe asynchronous processing, and SSRF controls.
Troubleshoot failed TLS certificate renewal by checking ACME challenge behavior, public DNS, CAA authorization, redirects, CDN rules, and certificate deployment.
Decode JWT fields without confusing readability with trust. Learn what common headers and claims mean, and which checks still require cryptographic verification.
Turn CSP violation reports into a useful remediation queue without adding unsafe-inline, broad wildcards, or unnecessary third-party sources.
Migrate email providers without breaking authentication by inventorying every sender, staging DKIM, controlling SPF overlap, and validating DMARC alignment.
Fix SPF PermError by tracing nested includes, removing stale senders, staying under the 10-DNS-lookup limit, and validating the published policy.
Decide which AI crawlers can access your site, separate search from training controls, and verify the public policy without treating robots.txt as access control.
Estimate entropy, crack time, and common-password warnings in the browser with Vulnify. The password is not sent to a scan server.
Put a Vulnify scan on a calendar, including Comprehensive. Pro includes up to 3 schedules and Team up to 10. Each run uses scan credits.