methodology / Security & Infrastructure / #3

SPF record present and valid

live factor #3 · Security & Infrastructure · scoring impl: implemented · weight 1.3%

What we measure

SPF tells mail servers which IP addresses are allowed to send email from your domain.

How to improve your score

Publish a TXT record `v=spf1 include:<your-mail-provider> ~all`. Use `-all` for stricter enforcement once confident the list is complete.

Data source

Data source for this factor is not yet documented.

Scoring

Scoring formulas are versioned with the methodology. The current method (v1.1.0) maps raw measurements to pass, warn, fail. Factor weights determine how much each contributes to the composite — see the methodology index for the full table.

Version history

← back to methodology