UX testing — showing site to real users. Best way to find hidden problems.
Nielsen's rule: 5 users
5 users find 80% of UX issues. No need for more.
Types
Moderated (you watch), Unmoderated (alone — Maze), A/B testing.
Task scenarios
'Buy hosting package'. Real tasks = real results.
What to watch
Did they finish? How long? Where stuck? Emotions?
Tools
UserTesting $49, Maze $25, Hotjar $39.