Free Website Tools
Diagnose, check, and monitor your websites — no signup required.
Full Website Audit
Scan SSL, DNS, security headers, open ports, subdomains, email, and more — complete audit in 30 seconds.
SSL Certificate Checker
Check SSL/TLS certificate expiry, issuer, and chain validity for any domain.
DNS Lookup
Query A, AAAA, MX, NS, TXT, CNAME, SOA, and CAA records for any domain.
WHOIS & Domain Expiry
Look up registrar, registration date, expiry date, and days remaining.
Security Headers Checker
Scan 8 security headers (HSTS, CSP, X-Frame-Options, ...) and get an A-F grade.
HTTP Status Checker
Check HTTP status codes, response time, server headers, and redirect chains.
Ping / Latency Test
Ping any host and measure round-trip time, min/max latency, and packet loss.
Port Checker
Check if a TCP port is open or closed. Quick-select SSH, HTTP, MySQL, Redis, and more.
Want continuous monitoring with alerts? Set up automated checks in seconds.
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