Free SEO Tools
SPF Checker
Enter a domain to find its SPF record and check for common configuration issues.
About this tool
This checks basic, well-established SPF issues — existence, duplicate records, a missing “all” mechanism, and an excessive DNS-lookup count — not a complete RFC 7208 compliance validator.
Frequently Asked Questions
- What does this tool check?
- Whether an SPF record exists, whether there are duplicates, and basic syntax issues like a missing 'all' mechanism.
- Is this a full RFC 7208 validator?
- No — it checks common, well-established issues, not complete RFC 7208 compliance.
- Why does having multiple SPF records matter?
- The SPF spec requires exactly one record per domain; multiple records can cause unpredictable mail validation.