Comments on: Improve your web site performance - tips & tricks to get a good YSlow rating http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/ Web development and Internet trends Sun, 20 Jul 2008 18:13:54 +0000 http://wordpress.org/?v=2.3 By: Summer break - Robert’s talk - Web development and Internet trends http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-301956 Summer break - Robert’s talk - Web development and Internet trends Thu, 12 Jun 2008 23:12:31 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-301956 [...] Improve your web site performance - tips & tricks to get a good YSlow rating [...] […] Improve your web site performance - tips & tricks to get a good YSlow rating […]

]]> By: Minify your JavaScript - and save the KB’s for later (Imtech JavaScript Minificator - Free Tool) - Waldek Mastykarz http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-294451 Minify your JavaScript - and save the KB’s for later (Imtech JavaScript Minificator - Free Tool) - Waldek Mastykarz Thu, 05 Jun 2008 05:54:49 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-294451 [...] stumbled upon an article of Robert Nyman about YSlow - a performance measurement Firefox add-in: Improve Your Web Site Performance - Tips & Tricks To Get A Good YSlow Rating. Because the tool presents not only the test results, but also helps you fixing the discovered [...] […] stumbled upon an article of Robert Nyman about YSlow - a performance measurement Firefox add-in: Improve Your Web Site Performance - Tips & Tricks To Get A Good YSlow Rating. Because the tool presents not only the test results, but also helps you fixing the discovered […]

]]> By: lillbra » Blog Archive » Tänkvärda tips om prestanda http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-284727 lillbra » Blog Archive » Tänkvärda tips om prestanda Tue, 27 May 2008 05:25:45 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-284727 [...] du förbättra din sajts prestanda. Robert Nyman berättar mer exakt hur du gör detta i artikeln Improve your web site performance - tips & tricks to get a good YSlow rating. Det handlar till exempel om [...] […] du förbättra din sajts prestanda. Robert Nyman berättar mer exakt hur du gör detta i artikeln Improve your web site performance - tips & tricks to get a good YSlow rating. Det handlar till exempel om […]

]]> By: Optimizing web site performance - Waldek Mastykarz http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-284399 Optimizing web site performance - Waldek Mastykarz Mon, 26 May 2008 20:49:54 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-284399 [...] 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 [...] […] 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 […]

]]> By: Chinese SEO Expert http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-278819 Chinese SEO Expert Wed, 21 May 2008 00:37:03 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-278819 Great article, thank you very much Robert! I am thinking to improve my web site performance. This articles will help me a lot! Great article, thank you very much Robert! I am thinking to improve my web site performance. This articles will help me a lot!

]]> By: Chasing requests | icaaq http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-277621 Chasing requests | icaaq Mon, 19 May 2008 21:30:46 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-277621 [...] been allot of optimizing for me the last couple of weeks. I’ve been reading up on yslow issues, paths to a faster loading sequence, high performance websites and much much [...] […] been allot of optimizing for me the last couple of weeks. I’ve been reading up on yslow issues, paths to a faster loading sequence, high performance websites and much much […]

]]> By: Robert Nyman http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-271027 Robert Nyman Mon, 12 May 2008 09:07:21 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-271027 Mike, From what I've read, at least, gzip is supposedly always a good idea as long as the files are over 1-2 kb. Jennifer, Oh, wow. Maybe time for some internal spanking? :-) Andreas, Regarding ETags, what might be interesting to know, with multiple servers and load-balancing, ETags might also be a less good thing. Then you can remove ETags completely from your files instead, in the <code>.htaccess</code> file: <code>FileETag None</code> Mike,

From what I’ve read, at least, gzip is supposedly always a good idea as long as the files are over 1-2 KB.

Jennifer,

Oh, wow. Maybe time for some internal spanking? :-)

Andreas,

Regarding ETags, what might be interesting to know, with multiple servers and load-balancing, ETags might also be a less good thing. Then you can remove ETags completely from your files instead, in the .htaccess file:

FileETag None

]]> By: Andreas http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-270476 Andreas Sun, 11 May 2008 19:01:28 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-270476 Nice! I've added most of them to my framework but wasn't sure about the ETags-one. Cheers for clearing that up. Nice! I’ve added most of them to my framework but wasn’t sure about the ETags-one. Cheers for clearing that up.

]]> By: Jennifer Edmondson http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-269911 Jennifer Edmondson Sun, 11 May 2008 01:06:30 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-269911 au.yahoo.com scores 75 ^_^ au.yahoo.com scores 75 ^_^

]]> By: Mike http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-269647 Mike Sat, 10 May 2008 18:47:02 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-269647 Do you recommend using gzip for css and js files if they are 20 to 30k or under? I am having my host configure apache to add expires headers, and enable gzip, but they said that my stylesheets are too small to be worth it. Curious to know what you guys think, if there is a minimum size where gzip would not do you any good. Do you recommend using gzip for CSS and js files if they are 20 to 30k or under?

I am having my host configure apache to add expires headers, and enable gzip, but they said that my stylesheets are too small to be worth it. Curious to know what you guys think, if there is a minimum size where gzip would not do you any good.

]]> By: Robert Nyman http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-269141 Robert Nyman Fri, 09 May 2008 19:46:18 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-269141 NICCAI, Thanks! I'd be very happy if they were to link to this article. :-) Improving the performance for Robert's talk has been a gradual process, where I started by moving the JavaScript files down, compressing them etc so unfortunately I can't just roll back to see the previous score. But if I remember correctly, it was somewhere between 50-60, so the improvement was substantial! With the DOMAssistant web site, the irony is that I don't use any scripts on it (except for stats purposes), so the grade was already close to 70 when I started. Still, getting 88 is something I'm quite pleased with as well. :-) NICCAI,

Thanks! I’d be very happy if they were to link to this article. :-)
Improving the performance for Robert’s talk has been a gradual process, where I started by moving the JavaScript files down, compressing them etc so unfortunately I can’t just roll back to see the previous score.

But if I remember correctly, it was somewhere between 50-60, so the improvement was substantial!

With the DOMAssistant web site, the irony is that I don’t use any scripts on it (except for stats purposes), so the grade was already close to 70 when I started. Still, getting 88 is something I’m quite pleased with as well. :-)

]]> By: NICCAI http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-269110 NICCAI Fri, 09 May 2008 18:45:23 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-269110 Robert, will you share your YSlow scores for these sites before making the above tweaks? - just curious. Thanks and really handy article. The YSlow team should link to this. Robert, will you share your YSlow scores for these sites before making the above tweaks? - just curious. Thanks and really handy article. The YSlow team should link to this.

]]> By: Robert Nyman http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-269009 Robert Nyman Fri, 09 May 2008 14:22:55 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-269009 Neovov, Glad to hear that my timing was right. :-) With a full cache, ETags and Gzip won't matter that much, but Expires is still great, since it completely removes conditional GET requests for each file, to compare if the the web browser have the latest version in the cache. Georges, Yes, the result is fantastically good! :-) Morgan, Interesting to hear. If that's true, and one have access to the <code>httpd.conf</code> file, by all means, use that. If you find anything about this please let me/us know! Neovov,

Glad to hear that my timing was right. :-)
With a full cache, ETags and Gzip won’t matter that much, but Expires is still great, since it completely removes conditional GET requests for each file, to compare if the the web browser have the latest version in the cache.

Georges,

Yes, the result is fantastically good! :-)

Morgan,

Interesting to hear. If that’s true, and one have access to the httpd.conf file, by all means, use that. If you find anything about this please let me/us know!

]]> By: Morgan Roderick http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-268987 Morgan Roderick Fri, 09 May 2008 13:42:32 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-268987 This is from memory, so might be inaccurate, BUT! One thing to note, is that it's usually better to use httpd.conf, or another .conf file on your apache server to set directives. .htaccess files should be a last resort if you cannot modify your .conf files, as the server will evaluate it for each request instead of once, when the server starts. This is from memory, so might be inaccurate, BUT!

One thing to note, is that it’s usually better to use httpd.conf, or another .conf file on your apache server to set directives.

.htaccess files should be a last resort if you cannot modify your .conf files, as the server will evaluate it for each request instead of once, when the server starts.

]]> By: links for 2008-05-09 | Libin Pan http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-268730 links for 2008-05-09 | Libin Pan Fri, 09 May 2008 06:43:02 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-268730 [...] Improve your web site performance - tips & tricks to get a good YSlow rating - Robert’s talk ... Improve your web site performance - tips & tricks to get a good YSlow rating (tags: web performance yahoo yslow) [...] […] Improve your web site performance - tips & tricks to get a good YSlow rating - Robert’s talk … Improve your web site performance - tips & tricks to get a good YSlow rating (tags: web performance yahoo yslow) […]

]]> By: Georges Jentgen http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-268704 Georges Jentgen Fri, 09 May 2008 06:04:49 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-268704 Nice post Robert! Really enoyed reading it. GZipping content on the serverside is always the best way to start, as the gziping does a very good job. In my last project I have had a compression rate of almost 70%! This was especially good as it was a webapp with a quite complex ui written in js and a lot of ajax going on... You couldn't notice the ajax request going on in the background after I turned on gzip compression. But I would suggest to always develop without those things turned on at first, as it leads you to blow up your code because you think that it is compressed anyway... you should NOT! :) Nice post Robert! Really enoyed reading it. GZipping content on the serverside is always the best way to start, as the gziping does a very good job. In my last project I have had a compression rate of almost 70%! This was especially good as it was a webapp with a quite complex ui written in js and a lot of AJAX going on…

You couldn’t notice the AJAX request going on in the background after I turned on gzip compression.

But I would suggest to always develop without those things turned on at first, as it leads you to blow up your code because you think that it is compressed anyway… you should NOT! :)

]]> By: Neovov http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-268484 Neovov Fri, 09 May 2008 00:17:51 +0000 http://www.robertnyman.com/2008/05/09/improve-your-web-site-performance-tips-tricks-to-get-a-good-yslow-rating/#comment-268484 A big thanks, your post is excelent and came precisely when I need some informations about that. But, I have just one note : Most of the time, visitors have a browser's cache full.. So, in that case configuring, ETags, Expire and GZip isn't a big improvement... A big thanks, your post is excelent and came precisely when I need some informations about that.

But, I have just one note : Most of the time, visitors have a browser’s cache full.. So, in that case configuring, ETags, Expire and GZip isn’t a big improvement…

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