In web testing we need to define the scope of the testing,
Web testing has performance testing and functionality 
testing. 
In functionality testing we will test the look and feel of 
an web site and validation and see that all the links have 
any url associated with it, and test for the user 
friendliness, more importance is given to see that user 
interface is proper.
in performance testing we should see the how much load does 
thie web site can handle and do stress testing and see that 
all the pages comes according to universal stands.

below are the some of the components will  be covered in the
website testing:

1)Functionality wise testing
2)Page loading
3)Links coverage testing
4)Content coverage
5)UI,look and feel
6)GUI coverage