One of the most important tools you will use in evaluating a website is the the "About", "About Us", or "Our Mission" page on the website. There are other terms but these are the most frequently used.
This page tells you about the organization or company that is sponsoring or hosting the website. The better websites will give you a short history of the organization or company along with information about themselves.
It is here you can quickly determine if the website would be useful to you. The mission should be stated clearly so there is no room for misunderstanding. Mission statements or about statements that are vague can be misleading. That would lead to questioning the information on the website.
The "About" link can be found somewhere on the top or side navigation bars or at the very bottom of the home page. Sometimes the information is posted directly on the home page