URLs are made up of the following parts:
- Protocol – usually http or https
- Domain name – the alphanumeric name for the server where the site is hosted. It will always come before the first ‘/’ after the protocol. Eg. https://gps.gadens.com/
- Sub-domain – usually added to navigate to different sections of a site. Eg. https://gps.gadens.com/
- Type of domain – Eg. https://gps.gadens.com/
- Filename – the page of the site. Eg. https://gps.gadens.com/homepage.html
Here are some example URLs:

This is a valid URL using a sub-domain of “support”. The domain and type will always be located before the first ‘/’ after the protocol or at the end of the URL.

This is an invalid URL. An ‘r’ and ‘n’ has been used to simulate a lower case ‘m’ in the domain name for microsoft.

This is an invalid URL. The domain name and type will always be located before the first ‘/’ after the protocol. In this instance, the hacked has included a sub-domain that looks like a legitimate site of a bank, but the domain is actually ‘geology’.