Sub-Domain This is a different level of a standard website (or domain), as opposed to just being another page. It is found by a web address (or URL: a Unique Resource Locator) with a primary part/name separated from the main name of the site by a decimal point (full stop), such as 'help.sekureit.com' - note the decimal point in the middle. This is basically the opposite of a normal page, which follows the main site name, separated by a forward slash, such as 'sekureit.com/browsers'. For more information, click here to go to our Glossary page.