Why McMaster-Carr's Website Is So Fast

HN points to it as the clearest frontend explanation of why McMaster-Carr feels so snappy, often contrasted with slow modern UIs.

Wes Bos breaks down the techniques behind the McMaster-Carr website's speed: server-rendered HTML, prefetching, CDN and service worker caching, preloading, critical CSS and fixed-size images. He also notes its old-school jQuery and YUI JavaScript.