PerfWars was built as a friendly tool to raise awareness about website performance, and to help you crush your enemies.
We try to dig up as much information about the performance of two urls as possible, and distill all of that data down to something informative and actionable.
Performance is a big deal, and every second, millisecond, or even nanosecond you can shave off of your load time will come back to you in the form of happy users and increased conversions.
I’m not sure how accurate the result are (I suspect they are fairly accurate), but I think this tool is nifty. I love how it potentially encourages competition between developers to reduce bloat and increase performance. I’ll definitely be using this on some of my day job projects.