SPF Checker — Test Your SPF Record

Test your SPF record: lookup chain, include depth, and avoid “too many DNS lookups.” Understand softfail vs fail.

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What we check

  • SPF record presence and syntax
  • Lookup chain and include depth
  • Too many DNS lookups (10-lookup limit)
  • Mechanisms: softfail (~) vs fail (-)
  • Common mistakes (missing records, invalid syntax)

How it works

  1. Enter your domain in the box above.
  2. We fetch the SPF TXT record and resolve includes.
  3. You see the full lookup chain and any errors.

How to read results

  • SPF record and mechanism list
  • Lookup count and depth
  • Softfail vs fail meaning
  • Common mistakes and fixes

FAQ