Five lookups, zero signup. DNS records, reverse DNS, HTTP security headers (graded A+→F), TLS certificate transparency search, and tech-stack detection. Powered by AssurePort's Cloudflare EU edge.
No login · 30 calls / hour / IP · Data residency: EU
Enter a hostname to look up A, AAAA, MX, NS, TXT, CNAME, SOA, CAA records.
Resolve a public IP back to its PTR records (hostname).
Score the target's HTTP security headers — HSTS, CSP, COOP, CORP, X-Content-Type, frame-ancestors, etc. Letter grade A+ to F.
Pulls every issued certificate from public Certificate Transparency logs (crt.sh). Shows issuer, expiry, SAN list, serial.
Identify CDN, web server, framework, analytics, payments, CMS — based on response headers + first 100 KB of HTML.
Run a real penetration test on the same target.
The free toolkit answers "what's exposed?" — but what about "what can be exploited?". AssurePort's 13-agent AI pipeline runs full pentests with PoC evidence + remediation code. From $99 starter pack, no card required to sign in.