Currency: When was the information published or last updated?
Relevance: What is the depth/coverage of info? Who is the intended audience? How well does the source answer your questions?
Authority: Who wrote the information? What are their credentials? Are they affiliated with a company? A non-profit? A university? **Look for a Contact Us or About Us page.**
Accuracy: Are there any citations? Do the links work? Where are the links going? Can you verify the information elsewhere?
Purpose: Does the website aim to teach? Inform? Sell? Entertain? Persuade? Is it .gov? .edu? .com?