Who wrote it?
Is there an author(s) listed, or is it by a company? For example, an article on the CDC website may not have an individual author, but you still know it's coming from the CDC.
'About Us'
Is there a section talking about the purpose of the site? If it's a personal page, investigate the author. Does the author have other publications? Where? If it's a company, read their mission statement. Is there bias from the person or company?
Ads/Store
Is the website trying to sell you something, or sell you access to proprietary information? If so, is there a connection to the content on the site? For example, a website talking about drones may also sell drones and drone parts. But a website could have sponsored content from other biased sources.
Age of info
Is there a publication or date listed? Has the site been updated recently? If not, the information could be outdated.
References
Does the article contain citations or references to support any claims? Are additional readings or links provided?
Currency, Relevance, Authority, Accuracy, Purpose
Learn how to use this assessment tool when conducting research
A word of caution: There is potential for error, distortion, and bias in any source. Respected experts disagree with their peers, new discoveries call once-established “facts” into question, and widely-accepted theories are later proven false. It can be both useful and necessary to engage with sources that do not pass the CRAAP test, especially if you critically evaluate the source and address its limitations. So keep an open mind, acknowledge uncertainty, practice skepticism, stay informed about new developments, and seek understanding of multiple perspectives related to the subjects and ideas that matter to you. (NWACC Library)