Browserside Tools

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Network Tools

SPF Checker

Find SPF records and included domains for an email-sending domain.

Read the SPF Record Examples

Input

Runs as you type · ⌘⏎ to force a run

Result

Fill in the form — the answer appears here.

More in Network Tools

  1. DNS Lookup network Look up common DNS records for a domain.
  2. MX Lookup network Check mail exchanger records for a domain.
  3. CIDR Calculator network Break down a CIDR block into network, mask, and usable host range.
  4. Subnet Calculator network Calculate subnet details from an IP address and mask.