Speed up your web pages with YSlow
YSlow analyzes web pages and tells you why they’re slow based on the rules for high performance web sites. YSlow is a Firefox add-on integrated with the popular Firebug web development tool. YSlow gives you:
- Performance report card
- HTTP/HTML summary
- List of components in the page
- Tools including JSLint
Download HERE
Visit also the homepage of the team behind this tool: Yahoo!’s Exceptional Performance Team
You should not take too much time to guess that I am currently optimizing my homepage 🙂
Be careful, running this tool more than 5 times make my Firefox crash 😉
Some statistics:
- forums.waltercedric.com Performance Grade: B (87), still working on it
- www.waltercedric.com Performance Grade: B (83) was F before, still working on it
- gallery.waltercedric.com Performance Grade: D (66), still working on it
Some useful links
- ShrinkSafe is a JavaScript “compression” system. It can typically reduce the size of your scripts by a third or more, depending on your programming style.
- mod_expires apache 2.0 modules documentation in order to reduce bandwidth
- mod_deflate and mod_expires small howto
- compressing javascript or how to compress javascript with htaccess, useful if you can’t touch the apache configuration.
Be careful! a lot of host get pretty low metering (just test your favorite internet site), but are still very fast -> this tools do not tell You their infrastructure: memcache server, multiple db server, multiple file server for static content and so on.
