Domain / IP Blacklist Checker
Check whether a domain or IPv4 address appears on a selection of common mail-related blocklists.
Results
What this tool does
This tool performs best-effort blacklist checks against a small set of common mail-related blocklists. If you enter a domain, it also checks resolved IPv4 addresses where possible.
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Learn how to check whether an IP address or domain is blacklisted, what DNSBL results really mean, and how to interpret blocklist findings before escalating.
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