Since June of last year (following attending WWDC in San Francisco) I’ve had an item on my To Do list — “experiment with improving the overall performance of the Wishingline Notebook site.” In other words, do some under the hood optimizations.
Yahoo! has a terrific set of guidelines that can be used to squeeze the most performance out of your site. This, along with a talk from WWDC last year piqued my interest in learning more — especially any simple things I could put into practice in my client work as well.
1 domain = 2 concurrent connections. Ok but not great.
4 domains = 8 concurrent connections. Zippy!
Unfortunately it wasn’t until this past week that I had a chance to look into this one.
I started with two simple goals:
- Make the code change across the site templates simple.
Setting up subdomains in Apache is simple and adding the necessary DNS entries and virtual subdomains to accomplish the first goal took less than 10 minutes.
On the other hand, being smart about how to handle putting those subdomains into the template code elegantly was a bit trickier. Sure I could just hard-code the URLs into the site templates — but that kind of sucks. I had a better idea.
The Notebook site has been running on Movable Type since 2003 and a better way to accomplish this would be by using template tags. And so I did, though it meant creating a special plugin for Movable Type to do so.
Each of the four setting options provided by the plugin settings (shown above) are optional and should be fairly self-explanatory. A simple example of how to use these is included in the documentation.
The general “media” option was added at the last minute for the sake of simplicity — to allow the use of a single generic domain/subdomain to serve any type of asset — for example, serve all CSS, JS and images from a single secondary domain.