DNS topology + redundancy
Authoritative nameserver review (geographic spread, provider diversity, secondary-DNS coverage). Anycast adoption. TTL tuning audit. Resolver propagation analysis across global edges.
Free DNS Health Audit
Find out what your DNS looks like to the rest of the internet.
DNS topology, security records, hygiene, and performance — reviewed by a senior engineer with real lookups against your authoritative nameservers and a sample of global resolvers. PDF report inside two business days.
What the audit covers
Security records
SPF, DKIM, DMARC alignment. CAA records for certificate-authority allowlisting. DNSSEC chain validation. DNS-over-HTTPS / DNS-over-TLS support.
Record hygiene
Orphaned A/CNAME/MX records. Dangling subdomains (subdomain-takeover risk). Inconsistent record sets across providers. TXT-record sprawl.
Performance
Resolution time across global resolvers. Cache-hit rate analysis. CDN integration health. ALIAS/ANAME record optimization for apex domains.