Classic source evaluation method. It has been widely criticized, but can still be useful if its less of a checklist and more a tool for critical thinking about the following considerations.
This tool is particularly useful for non-scholarly sources like things you may find through a Google search, although it can also be applied to scholarly sources.
Currency: Is your source current, if currency matters for your topic.
Relevance: Is the information relevant to your needs?
Authority: Does the author or publisher have credentials or a good reputation on this topic?
Accuracy: Is the information correct and truthful?
Purpose: Why did the author create it? How does the authors purpose relate to your purpose for reading it?