What’s the use of www. and. com in websites? As an extension of the question, why do emails have. Com too?
In: Technology
Other people got the gist, so as for why there’s a www at all it’s because of history.
These days almost everyone who types in a domain is looking for a web site, but when the web was created the internet had already existed for a while. There were all sorts of different programs and protocols all running on the internet.
So since domain names are used to locate and communicate with particular computers, you could use the “www” to specify that this was the computer I was running a World Wide Web server on, whereas some other machine might be running other different software.
These days, though, it’s much more rare to find other protocols people actually care about, so people just point their main domain at the web server. For small domains without a lot of traffic it’s easy to just run any different server on the same machine, so they can all point to the same place. For bigger domains with tons of traffic one machine is probably to little, so they have “load balancers” where there can be a bunch of identical machines and any traffic that reaches any of them can be forwarded to the right place. So those don’t need the domain to differentiate either, and the practice of having www has fallen out of favour.
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