Testing and searching for bugs in websites?

Question

Software testing

What is the best way to find bugs on websites, applications? How to check them? Is this a bug or is it just your problem. Tell me please.

Answer 1

formulate the terms of reference for the development of the site
, everything that specifically does not correspond to it, and there is a bug

Answer 2

If we are talking about internal testing (i.e. you are testing your product), then you have access to tasks\documentation\customer, based on this you can determine where is a bug and where is a feature.
In case we are talking about external testing (you are trying to find errors in someone else's product) - there is an obvious checklist of bugs for security and data completeness, and in cases of standard functional errors - only common sense and hardcore.
How to find the best:
Read about testing theory, test design practices, etc. After that, you will have a rough understanding of what and how to test.