http.host refers to a field that represents the host portion of an HTTP request. It typically contains the domain name or IP address of the server that the client is trying to reach. This field is part of the HTTP headers and is used to specify the target server in requests, especially when multiple domains are hosted on the same server.
For example, in an HTTP request to http://www.example.com/index.html, the http.host would be www.example.com. This is important for routing requests correctly, especially in shared hosting environments.
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