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Why performance is important?
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Eva Ieridou
September 28, 2019
Programming
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110
Why performance is important?
Eva Ieridou
September 28, 2019
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Transcript
Why performance is important? Eva Ieridou, not a developer.
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win.crystallize.com
None
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Motivation for performance MOTIVATION
Happy customers MOTIVATION
MOTIVATION
A study showed that 88% of online consumers are less
likely to return to a site after a bad experience. MOTIVATION
64% of smartphone users expect pages to load in less
than 4 seconds. MOTIVATION 47% of customers expect a webpage to load in 2 seconds or less. 1 second delay in page load time means 11% loss of page vies. 1 second delay means a 7% reduction in conversions.
Google loves you MOTIVATION
MOTIVATION
Increase in conversion MOTIVATION
Every 100ms of latency costs Amazon 1% in sales. MOTIVATION
(The uncanny valley) THE BIG LIE Looks Interactive Enoughish (?)
JAVASCRIPT
S S R JAVASCRIPT Server Site Rendering JAVASCRIPT
JAVASCRIPT The Uncanny Valley Time To Interact
Test your website like all the time.
None
Performance is the best way to shut people up. Namaste