A complete guide to optimising websites for speed, rolling up dozens of tips I already knew (and a few I didn’t). The site’s footnotes are cool too (side notes?).

The most interesting tip, “don’t use document.write“, was news to me. I’ll have to test this to see if it’s doing what the author suggests. Also, combining files into libraries is something I’ve planned on doing for a while, and calling them “libraries” is probably the clearest way to think about them: a link phase in site deployment makes a lot of sense.