Website X-Ray

Put any website under the microscope.
Performance, security, DNS and email — checked live.

Enter a website address and Stack2 runs a real external check across SSL, response time, security headers, DNS, email protection and more — then translates what it finds into plain English.

Safe, read-only scan · No changes made

The X-Ray runs eight real checks against the address you enter — a live TLS handshake for the SSL certificate, a timed HTTP request for response time and page weight, DNS and TXT record lookups for DNS health and email protection (SPF/DMARC), and a scan of the response headers and page for security protections and the underlying technology. Everything is external and read-only — nothing is installed, and nothing on your site is changed. Free, instant, no login.

You might also need

More free tools.

SSL Certificate Check

Check the SSL certificate for any domain — expiry date, issuer, SANs, and chain validity in full detail.

Check a certificate

DNS Lookup

Query every DNS record for a domain — A, AAAA, MX, TXT, CNAME, NS, SPF, DMARC and more, in full.

Run a lookup

WHOIS Lookup

Look up registrar details, registration and expiry dates, and nameservers for any domain.

Run a WHOIS lookup

Domain Checker

Check if a domain name is available to register across .com.au, .au, .com and more — then register it.

Check a domain

All Tools

See every free tool we've built for web professionals — no account, no rate limits.

View all tools