Boosted Check

LESS GUESSWORK. CLEARER ANSWERS.

SPF checker

Inspect the published SPF record, supported syntax and visible policy. Recursive SPF evaluation is not included in this checker.

01 Choose what to check

Use a domain only, without https:// or a page address.

Ready when you are.

What happens when you check

Your domain is sent to our server and Google Public DNS. SSL checks also make a TLS connection to one public server on port 443. We do not save a report history.

02 Your findings

A clear view of your configuration

Run a check to see what was found, when it was checked and what needs attention.

PassedReviewNot checked

A snapshot, with context

Results reflect one resolver and, for SSL, one server. Network failures are shown separately from missing or invalid records. Checked times display in your timezone.

Know what a check can tell you

One resolver and one TLS endpoint do not prove global DNS propagation, overall security or email deliverability. Certificate revocation is not checked. Email-record inspection is limited: no recursive SPF evaluation, organizational-domain DMARC fallback, external reporting authorization or signed-message DKIM verification. A 12-second deadline, bounded DNS responses, four concurrent server checks and request limits apply. Cancelling hides a report; already-started server work may finish within its deadline.