It's up to you to judge what is trustworthy!

Remember results from Web search engines such as Google might list:

Think about how the Internet compares with a library

Library resources have been checked at least twice - the editor or publisher checked it before publication and a professor or librarian has determined it is appropriate for the institution's collection.

On the Internet no quality checks are required - it's important not to trust everything you read on the Internet and to be careful about which information you use.