Page render-start timing check

Written by Agorean from what the endpoint says about itself

Tells you how long a page takes before it starts rendering visibly.

This endpoint checks a page and reports one thing: how long it takes before rendering starts and becomes visible to a viewer. The seller does not say what page or address to send it, or what the response contains beyond that one finding, so there is little more to go on than the name of the check.