July 2009

Discussions on Drupal site optimisation are usually technical discussions. But many a time they boil down to philosophical discussions. Search engine optimisation (SEO) and performance tweaks aren't necessarily good for the manageability of your site or for your potential visitors. I ran across a couple of these dilemmas in recent days while trying to optimise my own site.

JS / CSS compression

On of the questions I struggled with is: "should I compress the javascript and css files?". From a performance perspective, the answer is a clear yes. The performance boost is minimal because the servers of my hosting provider have ample headroom. But any performance gain helps. I manage to reduce the number of http requests by 18 simply by combining all the css and js files into 1 file for js and 1 for css. However, because I still do lots of front-end development, I want my own website's css files to be readable by potential clients. If prospects want to judge my css coding skills they'll probably want to take a look at this site's css code to. Compressing the files also makes them very hard to read. And all the care I put into laying out the code neatly (alphabetical element properties, consistent commenting, consistent tagging, etc) is lost for the potential observer. Right now I decided to enable this performance tweak because the potential number of observers is really limited.