Talk like a Googler: parts of a url

Here’s a valid URL which has lots of components:

http://video.google.co.uk:80/videoplay?docid=-7246927612831078230&hl=en#00h02m30s

Here are some of the components of the url:

• The protocol is http. Other protocols include https, ftp, etc.
  

• The host or hostname is video.google.co.uk.
  

• The subdomain is video.
  

• The domain name is google.co.uk.
  

• The top-level domain or TLD is uk. The uk domain is also referred to as a country-code top-level domain or ccTLD. For google.com, the TLD would be com.
  

• The second-level domain (SLD) is co.uk.
  

• The port is 80, which is the default port for web servers. Other ports are possible; a web server can listen on port 8000, for example. When the port is 80, most people leave out the port.
  

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