Published on January 12, 2012
#DigiTalksChelt Jan 2012Web Performance - A Whistle Stop Tour...@andydavies http://www.ﬂickr.com/photos/blaxjax/170373495
7sAverage page load time of Fortune 500 websites
“...up to 57% of online consumers will abandon a site after waiting 3 seconds for a page to load” Strangeloop Networks http://www.ﬂickr.com/photos/macieklew/351554256
Slower sites have lower conversion rates http://www.ﬂickr.com/photos/nelc/1208393486
Improving performance raises conversions http://www.ﬂickr.com/photos/glasgows/444674524
Improving performance can save money http://www.ﬂickr.com/photos/mjohnso/5437331304
Measuring load time using page waterfalls Great diagnostic tool, but it’s a sample of one and we are not our users!
Real User Load Page Times 27% 24%Visitors (%) 13% 8% 8% 6% 6% 3% 3% 2% 1% 1 2 3 4 5 6 7 8 9 10 > 10 Load Time (s)
Google Analytics: Measuring Real Users Sample data generated by modern browsers and Google Toolbar - older browsers may not be represented accurately!
Other tools for measuring page load time http://www.ﬂickr.com/photos/wwarby/3297205226
80%of page load time is down to the front-end (May be as high as 97% for mobile users)
But, don’t forget about server performance... http://www.ﬂickr.com/photos/br1dotcom/4297736794
“More Bandwidth Doesn’t Matter (much)” Mike Belshe 3.11sPage Load Time 1.95s 1.63s 1.50s 1.44s 1.41s 1.39s 1.38s 1.37s 1.36s 1 2 3 4 5 6 7 8 9 10 Bandwidth (Mbps)
Cut down the number of requests http://www.ﬂickr.com/photos/mic_n_2_sugars/564570276
Put your pages on a diet http://www.ﬂickr.com/photos/europedistrict/4537909259
Understand how pages load
Don’t have to do it all by hand http://www.ﬂickr.com/photos/simeon_barkas/2557059247
http://www.slideshare.net/andydavies @andydavies http://www.ﬂickr.com/photos/auntiep/5024494612
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The slides from my recent talk at DigiTalks Cheltenham: Web Performance - A Whistlestop Tour
Whistlestop promotes active and independent lives for Marin ... Short Play Performance: ... Please view the Class Listings and Web Calendar for any class ...
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Peak Performance. Catalog Navigation. Men SHOP THE LOOK Active Wear ... Freeride World Tour Performance Redefined Catch Magic Hour Help Back. Help Contact Us
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See the large range of men's wear in the Peak Performance online store. ... Freeride World Tour Performance Redefined Catch Magic Hour Hilfe Zurück. Hilfe