Hi, I want to generate links to Smushit so that visitors can optimize images online. I can very much understand if you don't want allow links that trigger...
Sorry for the double post, the hyperlink in the first post was pointing to the dev version on my machine. The hyperlink has been corrected and now points to...
Hi Exceptional Performers We've been collecting YSlow and performance data for thousands of websites every day over the past few months. We've started to...
I usually look through the WebPagetest <http://www.webpagetest.org> logs daily to get a feel for how the sites people are testing look from an optimization...
Hi, I had never tried this before, when I ran it on a website, it reported an error status for over half the images: Error writing the optimized file Is this...
Hi, I've installed new FireBug version 1.6b1. After this, every page loading ends with message box "TypeError: yscontext is undefined". This happens only with...
Anyone out there automated smush.it type optimizations into an ant task? Searching around got me this (http://github.com/znerd/optipng-ant-task) which is a...
Has anyone else noticed that looking over element timings in the Net panel of Firebug, nothing seems to be less than 15ms? Seems as if there is something...
Yslow and pagespeed suggest caching, that is to add expire headers tot he resources. But when I look at the page most resources are loaded from the cache and...
We had an interesting conversion at Site Confidence this week about user behaviour, performance and tabbed browsers. The key insight was about how we use the...
Anyone here embedding CSS background images in the CSS using data URLs? I'm looking for opinions of using this technique compared to sprite sheets (or...
hi there, i am an uni student and studying computer science. currently, i have an assignment regarding the performance analysis of websites. Can i use YSlow...
Hi all, A quick survey for some research I am doing: (1) What is your keep-alive timeout value? (2) What is your keep-alive max request value? (3) have you...
I've been really impressed with the StackExchange platform (http://www.stackexchange.com <http://www.stackexchange.com> , made by the same people that run...
In the Smush.it FAQ it says for PNG images you use 'pngcrush: to strip unneeded chunks from PNGs'. I have downloaded pngcrush and am just wondering what...
Dearest Performance Gurus, I always tried to put any js file right at the bottom of the page if possible. For historical reasons, at my current site it is not...
Hi, A few people asked me if Show Slow can set their CDN hostnames so they don't get low ranking for CDNs while they do actually use one. There is no way to...
I'm looking for something to automate the optimization process like http://code.google.com/p/web-optimizator/ but for C# .Net/IIS environments. Anyone know of...
Hi Web Performance Freaks We announced the Beta version of the free dynaTrace AJAX Edition at Velocity last week. This version makes it easier to analyze...
We announced this yesterday at Velocity, but I've been asleep for a while, so didn't get a chance to send it here. boomerang is a beaconing framework with...
Hi Chaps anyone know how I can get VRTA to parse a .cap file not created by NetMon? NetMon will open it (I tried then saving it in different ways), likewise...
I was testing the load times of some of my sites and even though I only use one Domain name for all of my http requests firefox decided it needed to look up...
Dear Community, I would like to invite people to join and participate in completely open and public group focused specifically on Web Performance and page...
Hi, Some of you may have heard of us already, but we've yet to make a formal announcement about our web page analysis service, GTmetrix: http://gtmetrix.com/ ...
Do any of you have a good way to visualize (in a page chart) what might happen if say files x, y and z were combined, or a large file split up, or files moved...
