Verify · Reconnaissance
Domain reconnaissance
Three complementary analyses of a DNS target: records, subdomain surface and TLS certificate. For a complete quick assessment also use the URL check.
← URL check (overview)
DNS
DNS records
Enumerate A, AAAA, MX, NS, TXT, CNAME and SOA records and run a WHOIS lookup to map the domain's infrastructure.
Open DNS and WHOIS → SurfaceSubdomains
Discover common subdomains and resolve their IPs to document the attack surface.
Open Subdomains → TLSTLS certificate
Validity, issuer, SAN and expiry of the certificate — useful for an in-depth HTTPS audit.
Open TLS certificate →