IP checker uses a different IP database while checking your IP. That's
why you may get different results on different websites. Unfortunately,
many of these databases provide inaccurate information about IPs. Some
of these IP checkers offer IP blacklist checks. For instance, you can
easily find your own IP address on a blacklist. Besides that, blacklists
retrieve information from various IP databases which may lead to a
misconception about a particular proxy provider.
only way to find out how often a blacklist is updated is to contact the
publisher directly. We assure you that even if you find an IP address
on a blacklist, it will not affect your performance in any way.