You really can't rely on those numbers. More important is the response time that a "real" user sees. On Gomez' homepage they have a free test app that will...
So, with pagetest <http://www.webpagetest.org> having been up for 8 months now with close to 26,000 tests having been run I thought it would be worthwhile to...
That's interesting but too be honest I'm not totally shocked - the average user tends not to get deep (by choice or simply due to lack of access) into the kind...
I don't think it's restricted to the average user. Something like CNN.com actually has a dedicated group of SA's. Persistent connections are enabled by...
In larger organizations it is often still the case where the web developers do not have access to the production servers, or to their configuration - you'll...
Patrick, You provided an opportunity for me to ask a question that I have been wrestling with for a long time: If you imagine a web server that returns a...
Usually the conditional get is done if the resource is still in the cache but the expires date has passed. If it is before the expiration date the request...
... developers ... configuration - ... even ... place ... Here's what I've found, working for a large site: 1) There is a constant tension between the content...
Heinlein's Razor: Never attribute to malice, what can easily be explained by stupidity. One of those adages that can help us stay sane. One of those aphorisms ...
... We have a variation on that approach. Instead of a version number we use an MD5 of the content, and it's cached for years. That way the cache is bused...
On my site (www.dogpile.com), YSlow says that 4 external scripts were found in the document HEAD. But for the life of us, we can't see what it's seeing. The...
Yes, but at least three of them are at the top of the <body />, and two of those require external resources. Cheers Dave On Tue, 02 Dec 2008 23:10:01 -0000,...
You're right about where the scripts are placed. Yslow will suggest you move your scripts the the _very_ end of the body as loading scripts before that will...
Mark, The url format of your scripts exposed a bug in the yslow code. When yslow checks for offender of the js at bottom rule, it is only searching if the...
Nicole, Stoyan: thanks so much for Smush.it. It's a fantastic resource. I've created a WordPress plugin that runs every uploaded image through Smush.it behind...
One difference is wrt browser side caching. For Internet explored users many large corporates will have a custom OS build that doesn't cache encrypted content....
... Yep, the nasty IE bug with Cache-control directives and SSL <http://support.microsoft.com/kb/323308> I'm aware of that. I'm implicitly understanding that...
I'm trying our smush.it with the Firefox extension, and I'm getting JS errors that appear to be stemming from a PHP error. You may want to take a look through...
For the past few days I've been seeing nothing but "Smushing..." for all images (whether through the extension, uploaded, URL, anything really). Any ideas?...
Summary: I've noticed that when the Firefox cache fills up it can take a long time for a new page to get a place in the cache. This is for both memory and disk...
... Looks like Smush.it is down :( Following the example link in the FAQ (http://smush.it/ws.php?img=http://smush.it/css/skin/screenshot.png) gives PHP...
... Hi everyone, I just got an update. The filesystem on the smush.it servers seems to have run out of inodes and old files need to be cleared out. We will ...
... Thanks for all the feedback. The problem should be corrected now. Can you please retest and let me know if you are still having issues. Cheers, Nicole...
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