Improving web font performance with service workers

Over the last few days, we’ve looked at how to self-host web fonts and how to load them asynchronously for better performance. Today, we’re going to look at how to cache them with service workers for even better performance. (If you haven’t yet, you should go read the rest of my service worker series first or this article won’t make a ton of sense.) Adding a web font to your site For today’s lesson, we’re going to use PT Serif, the same typeface I use for my sites, and we’re going to self-host them.