UUID inspector + generator

Identify a UUID's version (1, 4, 7, …) and decode its timestamp where applicable. Or grab a fresh v4 with a click.

Keep hardening your site

This is one check of many. Run the rest — every tool is free, no account.

Security headers scan

Grade your live response headers

TLS certificate scan

Grade chain, expiry, and key strength

Security headers builder

Emit a ready-to-paste header block

CSP analyzer

Grade your Content-Security-Policy

Cookie security audit

Check Secure, HttpOnly, SameSite

Mixed-content scanner

Find http:// assets on https pages

Open-redirect detector

Probe redirect params for abuse

HSTS preload checker

Grade against Chrome's preload list