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A blacklist lookup tool is a utility that allows users to check if a domain or IP address is listed on one or more blacklists. Blacklists are lists of domains or IP addresses that are known to be associated with spam, malware, or other types of online threats.
Blacklist lookup tools are commonly used by web developers and IT professionals to identify and mitigate potential security risks. They can be used to check if a domain or IP address is listed on a particular blacklist, as well as to check the status of a domain or IP address on multiple blacklists at once.
Some blacklist lookup tools also provide additional information, such as the reason for the blacklisting, the date of the blacklisting, and any actions that can be taken to remove a domain or IP address from a blacklist.
Blacklist lookup tools are available as online tools that can be accessed through a web browser, as well as software programs that can be downloaded and installed on a computer.