Checks
Performance: what slows down, and when
A chart that says what it measures, the slowest checks next to the median, and the weight of the pages you choose.
A slow site loses sales without ever being down. The Performance page is there to see slowness coming, and to know which deploy brought it.
A chart that reads
The chart says what it measures and shows the fast, fair, slow and very slow bands behind it. It switches from the median to the slowest checks (p95), the ones an unlucky customer actually suffers. Deploys, anomalies and the site's usual pattern switch on as needed; each deploy is a thin line, named on hover. The curve is smoothed without ever exceeding the measurements, and your display choices are kept for each project.
It can also be browsed with the arrow keys, gives its data as a table and tells each curve apart by its stroke.
Page weight
Each measured page has its own switch and its origin: the home page, a monitored URL, or a page added by hand — any page of the same site. What is switched on is what is measured, within your plan's limit.