A useful method to evaluate websites — CRAAP test: Currency, Relevance, Authority, Accuracy, Purpose
It is also a very good idea to employ a method of corroborating information from sites by using “lateral reading” - look to see what other sources say about your source. This is a method commonly used by fact checkers like Snopes.
Here are some more resources about verifying information online by lateral reading:
Rowan University Lib Guide