The Stranger Test
What does your startup actually do?
Paste a homepage. A stranger reads the parts a visitor sees first, for five seconds, and tells you what it thinks you sell, to whom, and why they’d care. Then it shows you where it got lost.
Public pages only. The page text is sent to the model that reads it; results are cached for a week. Any public homepage works, yours or a competitor’s.
How it reads
It fetches the page and keeps the parts a visitor reads first: the title, the meta description, the headings, the navigation labels, the button text, and the first six hundred words. It does not click, scroll through the rest, or run JavaScript. That is as much as five seconds gets you.
Then a language model reads that text with a short rubric: describe what you understood, in plain words, and quote the places you got lost. It is not a roast. Founders usually know their page could be clearer; what they rarely see is which sentence loses the reader.
The clarity score is how sure the stranger was about what is sold and for whom. If yours is high, post it. If it is low, the quotes tell you what to fix first.