Do Unix Domain Sockets boost WordPress performance?

The WordPress codex mentions using Unix Domain Sockets for database connections. But does it improve performance? This article explains how to use Unix Domain Sockets and tests their performance.

Add async or defer to script tags in WordPress

In this article, we will intercept the generation of script tags, and alter the output in an attempt to improve web site performance. The filter code will add either a defer or async attribute to the script tag.