url , What is the use of www in a http(s) URL?


What is the use of www in a http(s) URL?

Question:

Tag: url

What is the use of www in a url like http://www.foobar.com Does it add any information to the url?

Recently I have accessed a website using https://nameofthewebsite.com and the browser couldn't connect. Adding www made it work. Please explain the intricacies of this in a url.


Answer:

In this case WWW is no different than any other subdomain. If you would attempt to go to https://someweirdstring.nameofthewebsite.com/ it wouldn't work just as well.

You cannot simply change the domain name and expect things to work.

If you examine DNS records you will see that each subdomain can actually be on a different server and can actually be controlled by a different person.

Many hosting providers will give you a third level domain in case if you don't have a regular one. So you may use http://something.yourhosting.com/ which will not be in any way related to http://yourhosting.com/ or http://www.yourhosting.com.

The debate on whether it is best to use WWW in domain names or to omit them creates many flamewars "in the internetz". Personally i am for its use, but here is an objective outline of the arguments:

Pro-WWW:

Anti-WWW

Both camps agree, that in today's world you should strive to have your site accessible under both bare domain and www domain (forwarding the user where needed). Unfortunately it costs money per domain to work with HTTPS, so many sites will only do one appoach, in order to save money.


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