The organized work of making sure a website or app does what it is supposed to do before it reaches customers.
QA stands for quality assurance. It is not random clicking; it is structured work: deciding what must work, writing test cases for it, running them, recording what failed in a clear report, then re-testing after the fix. A QA engineer represents the customer inside the team and looks for the problem before the customer finds it.
A bug found before launch is fixed quietly; one found by a customer costs trust and lost orders. Small projects often skip this stage because they have no tester. Fanann's QA Engineer is an AI agent: you give it the address of your site or app, whether built in Fanann or elsewhere, and it explores it, writes test cases you can review, runs them in a real browser and hands you a report with screenshots and severity. It is part of the paid plans. Practical tip: start with the three flows your business lives on: sign-up, ordering or booking, and payment. Test them before every release, however small the change.