Optimizing performance of the Imtech SharePoint Enhancement Toolkit

I have spent the last days on optimizing performance of the Imtech SharePoint Enhancement Toolkit: a toolkit that I have built in order to achieve standards compliancy, accessibility and slightly better performance of Web Content Management (WCM) solutions built in SharePoint 2007.

Optimizing web site performance

Recently Robert Nyman, has written a great article about optimizing web site performance using YSlow: an add-on for Firebug for Firefox. In his article Robert presents not only the add-on itself, but he also gives some tips on how to tune various settings to achieve better performance.

Performance of custom XSL/XML Web Parts in SharePoint 2007

Developing custom Web Parts which leverage the concept of separating the presentation layer from the control provides you and your customer with great flexibility. Web Parts which produce XML output and render it using an XSL stylesheet given by the end user can be easily reused in multiple projects saving you in some cases some time. While working on the Extended Content Query Web Part I took a look at the performance of the XSL transforms and I have found out that there are thing to be considered while using that concept.

Content Query Web Part vs. Custom Aggregation Web Part

During the Office Developer Conference 2008 I have attended a great presentation on high performance SharePoint 2007 solutions by Andrew Connell. And although I've heard a few times before that if you care for performance of your solution, and obviously you should if you're responsible for delivering Internet-facing Publishing Sites in SharePoint 2007, it became clear to me once again: one of the best aggregation solutions out there you should use is the Content Query Web Part... or isn't it?