Comments for High Performance Web Sites http://www.stevesouders.com/blog Essential knowledge for making your web pages faster. Mon, 15 Mar 2010 00:13:13 +0000 http://wordpress.org/?v=2.9.1 hourly 1 Comment on P3PC: Google Analytics by Steve Souders http://www.stevesouders.com/blog/2010/03/03/p3pc-google-analytics/comment-page-1/#comment-1819 Steve Souders Mon, 15 Mar 2010 00:13:13 +0000 http://www.stevesouders.com/blog/?p=1067#comment-1819 @shawn: I wasn't able to sign up for Omniture. Can you post a URL that's using their default snippet, and point me to documentation about their snippet? (Use the "contact Steve" link if you want to do that offline.) @Phil: A 204 No Content is the preferred status code to use, making the size of the beacon a non-issue. ETag and P3P response headers don't help. In fact, they might hurt in that they had more bytes to the response. @shawn: I wasn’t able to sign up for Omniture. Can you post a URL that’s using their default snippet, and point me to documentation about their snippet? (Use the “contact Steve” link if you want to do that offline.)

@Phil: A 204 No Content is the preferred status code to use, making the size of the beacon a non-issue. ETag and P3P response headers don’t help. In fact, they might hurt in that they had more bytes to the response.

]]> Comment on P3PC: Google Analytics by Phil http://www.stevesouders.com/blog/2010/03/03/p3pc-google-analytics/comment-page-1/#comment-1818 Phil Sun, 14 Mar 2010 23:35:31 +0000 http://www.stevesouders.com/blog/?p=1067#comment-1818 @Steve, very interesting post. Two related questions... a) How much of an impact on performance would moving from a 1*1 beacon to a 2*1 (or 2*2) have? List of sites that use 2*2 beacons http://112.2o7.net/b/ (omniture) http://omtr.d1.sc.omtrdc.net/b/ http://tracking.tigtags.com/pixel/1/1.gif http://tracking.percentmobile.com/pixel/1 List of sites that use 1*1 beacons http://www.google-analytics.com/__utm.gif http://statse.webtrendslive.com/1/dcs.gif http://data.coremetrics.com/cm?cvdone=p http://c14.statcounter.com/t.php?sc_project=1806836&security=7a639ec4 http://counter.goingup.com/badge.php?st=1&b=5 http://pixel.quantserve.com/pixel http://ad.uk.doubleclick.net/activity b) Is their any benefit in setting a p3p or Etag for the ga.js & utm.gif as these are present on Yahoo Analytics but not GA. e.g. P3P policyref="/w3c/p3p.xml", CP="xxx" and Etag "xxx" Thanks Phil. @Steve, very interesting post. Two related questions…

a) How much of an impact on performance would moving from a 1*1 beacon to a 2*1 (or 2*2) have?

List of sites that use 2*2 beacons
http://112.2o7.net/b/ (omniture)
http://omtr.d1.sc.omtrdc.net/b/
http://tracking.tigtags.com/pixel/1/1.gif
http://tracking.percentmobile.com/pixel/1

List of sites that use 1*1 beacons
http://www.google-analytics.com/__utm.gif
http://statse.webtrendslive.com/1/dcs.gif
http://data.coremetrics.com/cm?cvdone=p
http://c14.statcounter.com/t.php?sc_project=1806836&security=7a639ec4
http://counter.goingup.com/badge.php?st=1&b=5
http://pixel.quantserve.com/pixel
http://ad.uk.doubleclick.net/activity

b) Is their any benefit in setting a p3p or Etag for the ga.js & utm.gif as these are present on Yahoo Analytics but not GA.
e.g. P3P policyref=”/w3c/p3p.xml”, CP=”xxx” and Etag “xxx”

Thanks

Phil.

]]> Comment on High Performance Web Sites, Part 2 by Miami Photographer http://www.stevesouders.com/blog/2008/04/30/high-performance-web-sites-part-2/comment-page-1/#comment-1817 Miami Photographer Sun, 14 Mar 2010 20:14:21 +0000 http://www.stevesouders.com/blog/2008/04/30/high-performance-web-sites-part-2/#comment-1817 How about websites having PR 7 and up? Google these days also consider the load up speed of a site as ranking metrics. How about websites having PR 7 and up? Google these days also consider the load up speed of a site as ranking metrics.

]]> Comment on Performance of 3rd Party Content by Mark http://www.stevesouders.com/blog/2010/02/17/performance-of-3rd-party-content/comment-page-1/#comment-1816 Mark Sun, 14 Mar 2010 13:08:29 +0000 http://www.stevesouders.com/blog/?p=833#comment-1816 Another vote for ShareThis Another vote for ShareThis

]]> Comment on Velocity OLC, upcoming events by Tenni Theurer http://www.stevesouders.com/blog/2010/03/08/velocity-olc-upcoming-events/comment-page-1/#comment-1813 Tenni Theurer Fri, 12 Mar 2010 22:37:11 +0000 http://www.stevesouders.com/blog/?p=1094#comment-1813 Aw, has it really been 4 years since Web 2.0 Expo? Fond memories for me as well - remember we showed up wearing almost the exact same button-up blue shirt?! :) Aw, has it really been 4 years since Web 2.0 Expo? Fond memories for me as well – remember we showed up wearing almost the exact same button-up blue shirt?! :)

]]> Comment on Simplifying CSS Selectors by Grant http://www.stevesouders.com/blog/2009/06/18/simplifying-css-selectors/comment-page-1/#comment-1811 Grant Fri, 12 Mar 2010 16:37:12 +0000 http://www.stevesouders.com/blog/?p=427#comment-1811 I love this kind of post. But like someone else mentions the power of css, to me is reading from left to right. Adding additional classes and ids, just to narrow down the keyselector. Feels wrong. I love this kind of post. But like someone else mentions the power of css, to me is reading from left to right. Adding additional classes and ids, just to narrow down the keyselector. Feels wrong.

]]> Comment on Google Analytics goes async by Brian http://www.stevesouders.com/blog/2009/12/01/google-analytics-goes-async/comment-page-1/#comment-1810 Brian Fri, 12 Mar 2010 04:52:12 +0000 http://www.stevesouders.com/blog/?p=764#comment-1810 @Mark: I think we got your problem fixed on the async help forum, right? http://www.google.com/support/forum/p/Google+Analytics/label?lid=5a6c689030bdafe7&hl=en @Mark: I think we got your problem fixed on the async help forum, right?

http://www.google.com/support/forum/p/Google+Analytics/label?lid=5a6c689030bdafe7&hl=en

]]> Comment on Browser script loading roundup by lnielsen http://www.stevesouders.com/blog/2010/02/07/browser-script-loading-roundup/comment-page-1/#comment-1792 lnielsen Thu, 11 Mar 2010 22:28:15 +0000 http://www.stevesouders.com/blog/?p=849#comment-1792 Is there any way to force the newer browser versions to disable parallel script loading? I have a webpage that I use for performance testing that loads several small scripts and then one large, taking timings for both the small set and the large file, I need them to all use the same TCP session. (opens the TCP congestion window and then slams the network with 64KB)This works for IE7 but not FF3.5 Is there any way to force the newer browser versions to disable parallel script loading?
I have a webpage that I use for performance testing that loads several small scripts and then one large, taking timings for both the small set and the large file, I need them to all use the same TCP session. (opens the TCP congestion window and then slams the network with 64KB)This works for IE7 but not FF3.5

]]> Comment on Browser Performance Wishlist by codetiny http://www.stevesouders.com/blog/2010/02/15/browser-performance-wishlist/comment-page-1/#comment-1791 codetiny Thu, 11 Mar 2010 21:35:15 +0000 http://www.stevesouders.com/blog/?p=927#comment-1791 remote debugging must be enabled core of browser. Also I couldnt see any performance criteria for media content. remote debugging must be enabled core of browser. Also I couldnt see any performance criteria for media content.

]]> Comment on Velocity OLC, upcoming events by John Allsopp http://www.stevesouders.com/blog/2010/03/08/velocity-olc-upcoming-events/comment-page-1/#comment-1790 John Allsopp Wed, 10 Mar 2010 23:09:04 +0000 http://www.stevesouders.com/blog/?p=1094#comment-1790 Really excited to have you coming to London Steve, and hopefully elsewhere soon too! john Really excited to have you coming to London Steve, and hopefully elsewhere soon too!

john

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