Daevio

Daevio sends synthetic visitors to your website or web app. Each one has its own personality (patience, job, age and more) and runs in its own real browser on its own machine.

You paste your URL, pick or customize the personas, and give them a mission like "buy product X", or let them browse freely.

For every step you see what each visitor was thinking. At the end you get a report: what works, what's missing, where you lose visitors, a screen replay of every visit, and instructions (a prompt you can paste into your editor) to fix what's missing.

No traffic needed and nothing to install. There's a free plan to fully use it on one website.