The address for a webpage (called a URL) can give good information about what might be found on that site. The parts of the address give clues.
http:// until recently most addresses would begin with this - which just means you are going to see a web page.
https:// this is a secure site - it would be safe to give them credit card information. Many organizations are moving their websites to secure sites.
computer: most addresses begin with www, but not all. By default most addresses live on an internet server (computer) that hosts www pages.
institution: this can be the full name or an abbreviation. The person or group who created the web page often works for this organization
domain: the six most common "top" level domains are:
directory: an address can have several levels or none at all
filename.xxx: the address can end with different "extensions", such as pdf, htm, or html.