SPF Record Checker

Enter a domain and this SPF tester will fetch TXT records from the server, extract SPF strings, analyze DNS lookup count, and give suggestions to improve email deliverability.

SPF Tester

Why use this SPF Checker

  • Server-side DNS lookups avoid browser CORS and are more reliable.
  • Detect multiple SPF records, excessive DNS lookups and long SPF strings.
  • Get actionable suggestions to improve deliverability and security.

About SPF

SPF (Sender Policy Framework) is a DNS TXT record that specifies which servers can send email for your domain. Use SPF together with DKIM and DMARC for best results.