SPF RECORD CHECKER
Inspect a domain’s published SPF policy, common syntax and policy risks, approximate DNS lookup use, and bounded include or redirect paths.
SPF analysis
Enter a public domain to analyse its SPF policy.
Scope and limits
The checker reads controlled DNS TXT responses, parses common SPF mechanisms and modifiers, follows includes and redirects with cycle detection, and stops at strict nesting and total-query limits.
The displayed DNS-triggering count is approximate. SPF macros, receiver-specific processing, void-lookup limits and every edge case in the SPF specification are not fully evaluated; incomplete analysis is labelled.
Diagnostic guidance only. Test authorised mail flows and receiver behaviour before changing or tightening a production SPF policy.