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SPF lookup counter

Explore the SPF include tree, DNS lookup count and void lookup findings.

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Your result will appear here.

Run the check to see structured findings, severity, evidence and next steps from the public diagnostics API.

The details

Count the full SPF evaluation path

Count the full SPF evaluation path

The counter follows DNS-querying SPF terms through nested includes and redirects. It also tracks void lookups and recursion loops that can affect evaluation.

Flattening has tradeoffs

Reducing lookup count by copying vendor IP addresses can become stale when a provider changes infrastructure. Prefer understanding the include tree and maintaining it safely.

A result is a point-in-time check

DNS can vary by resolver and change over time. Verify important changes with your DNS provider and mail platform. Public DNS checks cannot see every private report or sending configuration.

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Frequently asked questions

What does the SPF lookup counter do?

Explore the SPF include tree, DNS lookup count and void lookup findings.

Do I need an account?

No. This public tool is available without registration.