DNS and domain
- DNS lookup — A, AAAA, CNAME, MX, TXT, NS, SOA, CAA and SRV answers.
- DNS propagation checker — live answers from probes in ten countries.
- WHOIS and RDAP lookup — registrar, dates, status and public contacts.
IP and web
- IP address lookup — network owner, route, reverse DNS and approximate region.
- ASN lookup — autonomous system, BGP prefix and RPKI state.
- SSL certificate checker — live certificate issuer, validity, names and fingerprint.
- Security header checker — browser protections from the final HTTPS response.
Email security
- Complete email security checker — one scored validation across all public controls.
- MX lookup — receiving mail routes and provider detection.
- SPF checker — sender authorization and lookup-limit risks.
- DMARC checker — policy enforcement, alignment and reporting.
- DKIM checker — selector and public-key validation.
- MTA-STS checker — DNS marker and live HTTPS policy.
- TLS-RPT checker — SMTP transport report destinations.
Reference
- Delivery platforms — the CDNs, security edges and hosts that answer a request, and the signals that identify each one.
- Application stack — the content management systems, frameworks and runtimes behind the response.
- Evidence model — how observed evidence is kept separate from inference.