Google Fonts recently switched to using new Zopfli compression algorithm:  the fonts are ~6% smaller on average, and in some cases up to 15% smaller! For example, Open Sans is one of the most popular fonts and is now more than 10% smaller -- this translates to faster load times and faster rendering.

What's Zopfli? It's an algorithm that was developed by the compression team at Google that delivers ~3~8% bytesize improvement when compared to gzip with maximum compression. This byte savings comes at a cost of much higher encoding cost, but the good news is, fonts are static files and decompression speed is exactly the same. Google Fonts pays the compression cost once and every clients gets the benefit of smaller download. If you’re curious to learn more about Zopfli:

In short, faster web fonts - yay!
Shared publiclyView activity