Free Security Tools

Check your SSL, security headers, and DNS records — no signup, no limits.

SSL Certificate Checker

Check certificate validity, issuer, expiry date, and chain status.

Checking certificate...

Security Headers Analyzer

Scan any URL for missing HTTP security headers and get a grade.

Scanning headers...

DNS Lookup

Query DNS records for any domain — A, AAAA, MX, TXT, NS, CNAME, SOA.

Looking up records...
FREE PDF

Server Hardening Checklist — 47 steps, 1 page

The exact checklist I run on every new VPS. SSH, firewall, kernel, Docker, monitoring, backups. Drop your email and I'll send the PDF plus one practical tutorial each week.

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