An IP reputation or blacklist check compares an address with lists maintained by email operators and security organizations. A listing may reflect past abuse from an address or a shared network; it is not proof that a particular person sent unwanted traffic.
Interpret listings carefully
Different lists use different criteria and update schedules. Dynamic, shared, or reassigned addresses can inherit reputation signals. If you operate the affected system, follow the list operator’s documented review and delisting process, and first secure the system that generated the traffic.
This site does not query blocklists
This local site does not submit addresses to third-party blacklist services or claim a clean/blocked result. Use the IP lookup for approximate registration information only.