Knowledge Center
A curated overview of all documentation pages, grouped by category. Use this page as a quick “jump menu” to find the right guide.
Security
- SSL / TLS – certificates, expiry, chain validation and ciphers.
- HTTP Headers – response headers + common security headers.
- Redirect Trace – hop-by-hop redirects and final destination.
- Security Score – combined hygiene score (0–100) + grade.
DNS
- DNS Lookup – A/AAAA/MX/NS/TXT/CNAME lookups.
- PTR / Reverse DNS – IP → hostname mapping.
- DNS Health – summary checks for common record types.
- DNSSEC – visibility check for DNSKEY/RRSIG.
- Email Authentication – SPF, DMARC and CAA presence.
- SPF – syntax validation + common mistakes.
- Mail Check – MX, IP resolution, PTR, SPF and DMARC overview.
- DMARC – check policy and parse tags.
- DMARC Generator – generate a recommended DMARC record.
Monitoring & Info
Troubleshooting (Fix guides)
These pages focus on interpreting “fail” results and what to change in DNS or mail configuration.
Tip
Most tools support an Advanced view that shows the raw JSON response from the backend. That can be useful for debugging or building your own automation.