Web Standards by Mike Vollmer
HTTP Protocol The web is run on port 80. You are probably wondering what "port 80" is, right (whether you actually are or not is irrelevant)? Well, the answer is easy (not really). See, the Internet and the web are different. The Internet is the infrastructure (ie the physical wires, the server... www.publicproxyservers.com is a good site for finding these servers. ... The web browser not only understands HTML but also knows that incoming connection starting with 404 means that the page is missing, etc.