Who wrote the page? What organization sponsored the page? Can you verify the author's credentials?
What is the purpose of the page? Who is the intended audience? Websites can be for information or sales purposes, sometimes both.
Is the information up to date? Is the webpage dated? Recent updates do not necessarily indicate current information.
Relates to purpose. Is the intent of the website to inform or persuade? Are facts completely & accurately cited?
Does the author provide footnotes or citations for the information provided?
Fact Checking (from NPR)