What’s the use of www. and. com in websites? As an extension of the question, why do emails have. Com too?
In: Technology
It’s a hierarchical system of what are called domains, basically it goes from right to left when the address is “resolved”
For example for going to www.google.com you first ask the “.com” DNS server the address of the google server, and then you ask the “.google”server the address of the “www” server and finally you connect. There can be many different domains for a single website, it’s just common practice to have www as the main one, but it doesn’t have to be that
Emails use the same system to know to what server to send your message
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