SPF Record Checker: Catch the Errors Breaking Delivery
Look up your SPF record in seconds, catch syntax mistakes and the 10 DNS lookup limit, and get plain fixes so your email keeps reaching inboxes.
Free with a Brainito account. No credit card required.
Catch Silent Failures
A stray character or one include too many can void your whole record. Spot problems before inboxes do.
Count DNS Lookups
SPF allows only 10 DNS lookups. The checker counts yours and shows which includes push you over the limit.
Plain Language Fixes
Every issue comes with a clear explanation and a suggested fix, no DNS expertise or guesswork needed.
Frequently Asked Questions
What does the SPF Record Checker look for?
It fetches the SPF record published on your domain, validates the syntax, counts DNS lookups against the 10 lookup limit, and flags issues like multiple records or a missing all mechanism that cause receiving servers to mistrust your mail.
Why does the 10 DNS lookup limit matter?
SPF fails when evaluating a record requires more than 10 DNS lookups, and many senders hit that by stacking includes from different tools. When it happens, receiving servers can treat your mail as unauthenticated and filter it.
Is the SPF Record Checker free?
Yes, it is free after creating a Brainito account. It is worth rechecking whenever you add a sending service, since inbox providers keep tightening authentication requirements in 2026.
Check your SPF record in seconds and stop silent delivery failures
One account unlocks spf record checker plus 340+ marketing tools, weekly audits, and your action plan.