Using the Paint Timing API

It’s a great time to be a web performance aficionado, and the arrival of the Paint Timing API in Chrome 60 is proof positive of that fact. The Paint Timing API is yet another addition to the burgeoning Performance API, but instead of capturing page and resource timings, this new and experimental API allows you to capture metrics on when a page begins painting.
If you haven’t experimented with any of the various performance APIs, it may help if …

Using the Paint Timing API is a post from CSS-Tricks

Link: https://css-tricks.com/paint-timing-api/