One of the first things to do is look at the website's URL domain ending. Domains .edu, .gov, and .org are generally thought to be the best for credible information. Just remember that .org is a domain that is no longer used by only non-profit organizations and .edu webpages can be created by students from a college or university who have no real expertise in the field they are discussing. Make sure you evaluate the website further than the domain endings.
.com commercial business or for-profit organizations
.gov United States government agencies
.edu educational institutions
.mil United States military organizations
.org non-profit organizations
(If you see a ~ in the URL, it may be a personal site, not an official site.)
