>• ipconfig.is

Domain security audit

Grade a domain's security posture A to F in one report: the TLS certificate and protocol versions, the HTTPS redirect and security headers, SPF, DKIM and DMARC, CAA records and DNSSEC.

What it checks

• TLS certificate, chain and versions
• HTTPS redirect and security headers
• SPF, DKIM and DMARC
• CAA records and DNSSEC

The same check from the command line

curl "ipconfig.is/audit?domain=github.com"

All tools

• Domain security audit: TLS certificate, chain and versions
• DNS lookup: 20 record types, A to DNAME
• DNS propagation checker: 12 public resolvers worldwide
• TLS certificate checker: Validity and days remaining
• SPF, DKIM and DMARC checker: SPF with the 10-lookup limit
• HTTP redirect checker: Every redirect hop
• Domain WHOIS lookup: Registrar and registration date
• Subnet calculator: Network, broadcast and usable range

Every tool is also a key-free API call: see the API reference.