On a website, an IP address block can prevent a disruptive address from access, though a warning and/or account block may be used first.
Internet users may circumvent geo-blocking and censorship and protect personal identity and location to stay anonymous on the internet using a VPN connection. Such as censorship of shows deemed inappropriate especially frequent in places such as China. Geo-blocking has been used, for example, to block shows in certain countries. In some cases requests from or responses to a certain country would be blocked entirely. Knowing the visitor's geo-location indicates, besides other things, the visitor's country. Logging the IP address can, for example, monitor if a person has visited the site before, for example to vote more than once, as well as to monitor their viewing pattern, how long since they performed any activity on the site (and set a time out limit), besides other things.
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With appropriate software on the host website, the IP address of visitors to the site can be logged and can also be used to determine the visitor's geographical location. Screenshot of a dig command, showing a false response from an Iranian DNS server for a request to resolve Persian WikipediaĮvery device connected to the Internet is assigned a unique IP address, which is needed to enable devices to communicate with each other.