After I presented ShowSlow at Velocity Online Conference two weeks ago, I got a lot of suggestions regarding the software or a public instance and one of them was from Steve Souders who recommended creating a comparison page where people can see rankings for different sites compared over time. It immediately resonated with me (G…

I’d like to welcome Aaron Kulick to ShowSlow team! Aaron was active user and contributed a few patches and then started to actively contribute documentation to the project wiki: showslow.org. Now Aaron is a full-blown contributor with SVN access and his first contribution is solving the most common problem – how do we automate YSlow…

I gave extended presentation about ShowSlow at New York Web Performance Meetup yesterday and I hope I was able to inspire people to start tracking their web site’s performance over time and thinking about your metrics that they want to collect for their business. There were a couple questions about automation so here’s the blog…

I added a few features to ShowSlow in a past couple weeks, but being also busy with HowDoable, I didn’t have time to write about them so here you go – a short digest: Limit URLs using PCRE regexes You can now limit URLs to be accepted by ShowSlow using PCRE regular expressions (thanks for…

Sometimes query strings can differ for a reason un related to performance and you want to have them ignored as all pages that are identical before the ? mark have the same characteristics. Thanks to rachenj who submitted the bug to Show Slow bug tracker, now we have this feature. Configuring query string pruning is…

O’Reilly Velocity OnLine Conference is scheduled for March 17 and Steve Souders was kind enough to invite me to give a talk titled “Keeping Track of Your Performance Using Show Slow“. Here’s more information about the conference: The next O’Reilly Velocity Online Conference happens March 17. This FREE two hour, interactive online conference will give…

Custom Metric Beacon allows every instance of ShowSlow to configure metrics it wants to record in addition to YSlow and PageSpeed ranking. Once metric beacon is configured, simple GET/POST requests can be sent to the beacon with some numeric value which gets recorded and displayed over time on a graph. You can also click on…

A few people on the list asked me how to automate Show Slow monitoring and dug up all the magic I used on my monitoring farm and try to summarize it here: Here are a few steps you’d want to follow: Set up separate browser profiles – one for Google Page Speed and one for…

I decided to extend Google Page Speed support in Show Slow to keep track of metrics the same way it’s done for YSlow. You can see results at showslow.com – here’s example with Page Speed results only: http://www.showslow.com/details/?url=http://start.ubuntu.com/8.04/ And here’s the example for both Page Speed and YSlow together: http://www.showslow.com/details/?url=http://www.mozilla.com/en-US/ Version 0.3 is released and…

Google PageSpeed 1.2 is now able to send data to a beacon (see bug #58) so I added some minimal support for it into ShowSlow that you can get from the trunk. Support is minimal and I only display PageSpeed’s overall rank and page load time (which looks like only initial request load) and it…