What parameters and requirements are required for the web application acceptance certificate?

Question

Freelance

In general, the essence of the task is such as what are the general requirements for developers on the act of acceptance of work, I'm not interested in the legal side, more practical, what you need to pay attention to, what are the requirements in general for accepting a web application.
Thanks

Answer 1

At least for this .
Well, on the security of the server side code.

Answer 2

you take the TK and go through each item if everything is done, sign the act.