There is a lot of content on the web which may not be suitable for use in academic work. You are therefore advised to make sure that the information source you use passes the CRAAP test before you use it and cite from it. CRAAP stands for 'currency', 'relevance', 'authority', 'accuracy' and 'purpose'.
It is important to evaluate where and what you search and find. One way to do this is to try out the CRAAP test for websites, books, articles and a range of resources. The graphic below from Humber Libraries at Humber College shows that CRAAP is an acronym for:
Currency relates to the timeliness of the resources
Relevance relates to the importance of the information to you
Authority relates to the souce of the information
Accuracy relates to the reliability of the resource
Purpose relates to the reason the information exists
The CRAAP Test was developed by the Meriam Library at California State University, Chico.