SPF record checker
Enter a domain to fetch its live SPF record from DNS and get a plain-English verdict: is the policy strict enough, and are you within the 10 DNS-lookup limit?
What this checker tells you
SPF (Sender Policy Framework) is a DNS record listing which servers may send mail for your domain. This tool fetches the live record and grades it: whether an SPF record exists, how many DNS lookups it triggers, and how strict the final policy is.
- Record present — a missing SPF record hurts deliverability
- Lookup count — SPF fails with a permerror above 10 DNS lookups
- Policy — '-all' is strict and recommended; '+all' is insecure
Fixing common SPF problems
- Too many lookups: flatten or remove unused 'include' statements
- Multiple SPF records: merge into a single TXT record
- Missing sender: add every legitimate sending service to the record
- Weak policy: move from '~all' to '-all' once you're confident
Frequently asked questions
Does this change my DNS?
No. The checker only reads your public DNS record — it's a read-only lookup and changes nothing.
Why does the lookup count matter?
SPF is limited to 10 DNS lookups. Exceed it and SPF returns a permerror, which many receivers treat as a failure — hurting deliverability.
SPF passes — am I fully protected?
SPF is one layer. Pair it with DKIM and a DMARC policy for real protection against spoofing. Check your DMARC record too.
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