Speed Matters at In Control 2014

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Speed Matters InControl Conference | February 18, 2014 | @tkadlec | timkadlec.com

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http://ﬂic.kr/p/96ryj6 http://upload.wikimedia.org/wikipedia/commons/2/23/Albino_Alligator_in_Water.jpg

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http://ﬂic.kr/p/96ryj6 http://upload.wikimedia.org/wikipedia/commons/2/23/Albino_Alligator_in_Water.jpg alligator.jpg

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http://ﬂic.kr/p/96ryj6 http://upload.wikimedia.org/wikipedia/commons/2/23/Albino_Alligator_in_Water.jpg gator.jpg

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http://ﬂic.kr/p/96ryj6 http://ﬂic.kr/p/5MWEMo

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http://ﬂic.kr/p/z268

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http://ﬂic.kr/p/492m2p

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http://ﬂic.kr/p/69SUZW

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we weren’t deliberate

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we weren’t deliberate

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the web is getting fat

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1.5mb

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38%

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Minimize JS & CSS Optimize images GZip JS at bottom Async scripts Browser caching Avoid redirects

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it’s a cultural issue

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lack of performance ! ! lack of planning =

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I doubt anyone really wants to release a site that doesn't perform well, it's just a product of not being aﬀorded the luxury of time and top-down pressure. — a friend.

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beautiful. !

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beautiful. ! robust. fast.

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beautiful. !

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beautiful. ! done on time.

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pre-optimization is the root of all evil

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post-optimization is the root of all evil

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death by a thousand cuts http://ﬂic.kr/p/6DFYyo

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http://ﬂic.kr/p/5pp76g

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http://ﬂic.kr/p/9roSGx

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http://ﬂic.kr/p/9roSGx Hint: This is not juice

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http://bit.ly/18pBjPK Only a problem if it’s broken

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we can can be better

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make friends early

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make it visual

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make it matter

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http://bit.ly/1c7O9Gf 100ms

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http://bit.ly/1c7O9Gf 100ms 1% revenue

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$15.7 billion http://yhoo.it/17aFlLh

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1% = $157,000,000 http://yhoo.it/17aFlLh

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160kb

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160kb 12% bounce rate

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http://bit.ly/oTg5ts one second slower

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One second 11% page views http://bit.ly/oTg5ts

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http://bit.ly/oTg5ts 16% customer satisfaction One second

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http://bit.ly/oTg5ts 7% conversions One second

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$2,500,000 http://yhoo.it/17aFlLh

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Time to display

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2990ms Time to display

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2990ms Time to display 6034ms

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Time to interact

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Time to interact 3588ms

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Time to interact 3588ms 7222ms

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Speed is the most important feature. If your application is slow, people won’t use it....If something is slow, they’re just gone. — Fred Wilson http://bit.ly/csL5ck

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There is real empirical evidence that substantiates the fact that speed is more than a feature. ! It’s a requirement. — Fred Wilson http://bit.ly/csL5ck

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There is real empirical evidence that substantiates the fact that speed is more than a feature. ! It’s a requirement. — Fred Wilson http://bit.ly/csL5ck It’s a requirement.

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bad performance is bad business

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get concrete get concrete

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http://ﬂic.kr/p/4CEdvf set a budget

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< 3 seconds DSL

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300kb - 350kb

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how fast is fast enough?

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100ms: Instantaneous 1 second: Uninterrupted ﬂow

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performance of your site

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performance of competitors

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20% rule

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10 seconds

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8 seconds 10 x 1.2

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5 seconds

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4 seconds 5 x 1.2

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http://slidesha.re/1e2x4B0

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http://slidesha.re/1e2x4B0

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let’s add a carousel

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Brad hates carousels.

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1. Optimize !

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1. Optimize 2. Remove

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1. Optimize 2. Remove 3. Don’t add

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Performance is a fundamental component of User Experience

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Being a Web designer & not considering speed/ performance is like being a print designer & not considering how your colors will print. — Luke Wroblewski http://bit.ly/yRvfu8

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Interactive & Dynamic

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it’s about respect

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respecting time

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60% less likely to return

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40% will visit a competitor

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bad experiences linger http://ﬂic.kr/p/2uSm6

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respecting money

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thenextweb.com $44

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vogue.co.uk $65

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respecting desire for content

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Now more than ever, we’re designing work meant to be viewed along a gradient of diﬀerent experiences. — Ethan Marcotte http://bit.ly/Wi0xvw

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Now more than ever, we’re designing work meant to be viewed along a gradient of different experiences. — Ethan Marcotte http://bit.ly/Wi0xvw Now more than ever, we’re designing work meant to be viewed along a gradient of different experiences. gradient of different experiences

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embrace constraints

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By keeping your client side code small and lightweight, you can literally open your product up to new markets. — Chris Zacharias http://bit.ly/Vl1sqy

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http://ﬂic.kr/p/cfoupQ

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The future is already here— it’s just not very evenly distributed. — William Gibson

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http://bit.ly/13EITE0

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http://bit.ly/13EITE0

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1330%

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1330% = .9s

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Make it hurt http://ﬂic.kr/p/yTjQS

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channel your inner performance masochist

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channel your inner performance masochist

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That was a pretty harsh experience for us. We’d been building an app for users like us. But we were the exception, not the rule. — Ragavan Srinivasan

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That was a pretty harsh experience for us. We’d been building an app for users like us. But we were the exception, not the rule. — Ragavan Srinivasan