In practice, the only thing that makes web experiences good is caring about the user experience — specifically, the experience of folks at the margins. Technologies come and go, but what always makes the difference is giving a toss about the user.

For years now, though, I’ve been using Tachometer for most browser-based benchmarks. It’s featured in this blog a few times, although I’ve never written specifically about it. Tachometer doesn’t make benchmarking totally foolproof, but it does automate a lot of the trickiest bits. What I like best is that it: