When you are deciding whether to use a website as a source, use the questions below to help you evaluate whether it is appropriate for your purpose.
Does the information fit your needs?
Is it current enough?
Is it too simple or too complex for your purpose?
How credible is the author / creator / owner of the content?
Can you find information on them and do they have expertise?
Ways to check for authority/credibility:
Website: "About" page: What kind of website is this?
Author: Is there a short bio or credentials (e.g. researcher, PhD, PEng, industry role) on the page?
Company / organization: You have probably heard of some credible organizations in your area of study, like professional associations. If you have not heard of the company / organization, Google/Wikipedia them for more information.
Does the source indicate where the information came from? (references, links, etc.)
Ways to check for accuracy:
Check more than one source
Check the author's links or references
Do the links point you to a better source?
Could the information be biased?
What perspective might be missing and how can you find them?