Domain Reputation Check

Check a domain against public blacklists and analyze its DNS setup.

Combines DNSBL lookups for the domain with its MX, SPF, DKIM and DMARC configuration to give a defensive reputation overview.

Queries public DNS-based blacklists. Intended for legitimate diagnostics.

Related tools

Frequently asked questions

Does a blacklist hit mean the domain is bad?

Not necessarily — listings can be outdated or false positives, but they should be investigated.