Na rychosti záleží? (Frontendisti 3. 6. 2015)

Proč, kdy a jak moc řešit rychlost načítání webu na frontendu. Příklady, čísla a ještě víc čísel.

Přednáška ze srazu Frontendisti 3. 6. 2015 v Praze v Node5.

Transcript

1. NA RYCHLOSTI ZÁLEŽÍ?!
   Honza Sládek, sladek@mangoweb.cz
   

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2. http://rankings.cz/en/rankings/operating-systems.html
   MOBILE: 18.51 %
   

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3. http://www.websiteoptimization.com/speed/tweak/website-speed-search-rankings-study/
   Go… [loading]…ogle
   Crawl time correlates with SERP position
   Page Load time did not correlate with SERP position
   

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4. https://blog.kissmetrics.com/loading-time/
   

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5. https://blog.kissmetrics.com/loading-time/
   

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6. https://docs.google.com/presentation/d/1IRHyU7_crIiCjl0Gvue0WY3eY_eYvFQvSfwQouW9368/
   

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7. 1-second delay in page-load time equals 11% fewer page
   views, a 16% decrease in customer satisfaction, and
   a 7% loss in conversions
   http://www.numericanalytics.com/questions/how-does-page-load-time-affect-site-revenue/
   Amazon.com saw sales decrease by 1% for every 100 milliseconds slower a page loaded.
   

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8. http://www.getelastic.com/how-page-load-speed-affects-conversion-infographic/
   

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9. http://www.getelastic.com/how-page-load-speed-affects-conversion-infographic/
   

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10. RYCHLOST × FUNKCE
    

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12. E-shop? Studie ceskykosikroku.cz
    

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13. NA RYCHLOSTI ________
    Honza Sládek, sladek@mangoweb.cz, @honzasladek
    It depends.
    @manGowebCZ
    

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