Reputation check

Domain · IP · phone · multi-source · no account

What this is. A quick look at public blocklists and malware feeds (Spamhaus, OpenPhish, abuse.ch and more) for one host — or offline numbering-plan validation for a phone number. Not a full investigation — for that, use Search.

Absence of a listing is not proof the host is safe. A valid phone format is not proof of who answers or whether the number is spam.

Full search

Nothing in mind? Run one of these — same check, real answer:

The second one is drawn live from the abuse.ch feeds Umbra keeps a local copy of, so it is current rather than a stale example.

Checking a phone number? Phone number check — numbering-plan validation and community reports. Never a reverse lookup.

Lawful use only · see Acceptable Use