There’s an interesting phenomenon with regards to the internet that the more tech-savvy among us might not notice, and those less educated in the world of the web are prone to doing without realizing.
The usual URL format is www.example.com. We all recognize this as a website URL. However, there’s one thing missing from that URL that is, in fact, critical. That’s the HTTP:// part of the command, the hyper text transfer protocol, with or without the S for secure. At the same time, the www is not actually necessary for almost all websites.
The www is a relic from a time when subdomains ruled access to a server. The www was the world wide web access, the front-facing page. The same site at ftp.example.com would be the file transfer protocol access, which the site administrator could use to upload and transfer files. A similar URL, pop.example.com, would be the post office protocol, which usually directs to an email server.
However, these days, most web servers relegate this to ports on the domain. Instead of www.example.com and ftp.example.com, you might have example.com:80 for traffic to port 80, web traffic, and example.com:21, traffic on port 21, which directs…