Performance Optimization

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ReneK
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Rank II - Novice
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Joined: Sun Jun 16, 2013 10:27 am

Performance Optimization

Post by ReneK » Fri May 30, 2014 3:34 am

Hi!

Maybe this is of interest for someone (not only ASP.NET):
http://channel9.msdn.com/events/TechEd/ ... 67EFhPLaF8

Rene

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RSteinwand
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Rank VI - Professional
Posts: 600
Joined: Mon Jun 09, 2008 2:12 pm
Location: Fargo, ND
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Re: Performance Optimization

Post by RSteinwand » Wed Aug 27, 2014 9:13 am

I rolled out our new responsive site on Sunday: http://www.intercepteft.com

I'm using this tool to generate the "above the fold" css: http://jonassebastianohlsson.com/critic ... generator/

I'm loading the rest of my stylesheet, along with scripts via asyncLoader (which seems to still have occasional script errors with IE8 that I need to check into): http://async.soluch.at/

I'm using <img srcset to load 3 different image sizes for the home page slider and playing with <picture> to also load webP versions. (Quite the learning curve.)

All my images are optimized via PageSpeed, ySlow or Smush.it, but still managed to get a sizeable improvement using JPEGmini, saving 300 mb on my slider and photo gallery images. I use sprites for icons, and css3 gradients, falling back to a gradient sprite for IE9 and older using IE classes via html5 boilerplate.

I scored 100 mobile, 100 desktop via PageSpeed insights, but it doesn't see the mobile-sized images (using srcset) so my mobile score drops on the home page and now I only get 99/99, possibly due to my short caching during the initial week.
Rick

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