Your DNS needs rehab.
Enter a domain. Get a graded audit — nameservers, mail authentication, blacklists, LLM policy — with every verdict explained and every problem priced to fix. No false alarms on managed DNS; we know a Cloudflare serial when we see one.
The deep audit
Delegation, SOA timers, open recursion, glue — the intodns-class walk, provider-aware.
SPF
The RFC 7208 walk with the 10-lookup budget counted as it is spent.
DMARC
Policy, alignment and rua — the none → quarantine → reject ladder.
DKIM
Selector probing and key strength.
Blacklists
A curated list of the zones that matter, each with its delisting path.
MTA-STS + TLSRPT
Enforce TLS for inbound mail and get failure reports.
llms.txt
The file AI agents read about you — graded against the spec.
AI crawler policy
GPTBot, ClaudeBot, Google-Extended: choose instead of drifting.
Header analyzer
Why is my mail in spam? Paste headers, read the answer.