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SPF Checker

SPF Checker

Parse and validate SPF, resolve includes and count DNS lookups.

Live query

Domain

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Related email tools

MX Lookup
DKIM Lookup
DMARC Checker

NETMATRIXSee Beyond The Network

Enterprise network intelligence and engineering toolkit. Free to use, with every query run against live infrastructure from our probe network.

DNS Tools

DNS Lookup
NSLookup
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WHOIS

IP Tools

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IP Lookup
Subnet Calculator
BGP Lookup
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Email Tools

MX Lookup
SPF Checker
DKIM Lookup
DMARC Checker

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SSL Certificate Checker
TLS Tester
Certificate Chain

Routing Tools

Ping
Traceroute
PathPing
Import Trace

Security Tools

Port Scanner
Security Headers
DNS Security
Reputation Lookup

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Use only against infrastructure you own or are authorised to test.