Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Anatomy of a responsive page load, Responsive D...
Search
Andy Hume
March 01, 2013
Technology
23
3.3k
Anatomy of a responsive page load, Responsive Day Out 2013
Make content appear fast on the screen. Presentation from Responsive Day Out 2013
Andy Hume
March 01, 2013
Tweet
Share
More Decks by Andy Hume
See All by Andy Hume
Architecting resilient front-ends, jQuery UK, 2015
andyhume
2
1.1k
Building for performance and resilience
andyhume
5
1.1k
Architecting resilient front ends
andyhume
3
810
Guardian Responsive Design, SmashingConf 2013
andyhume
6
620
Web Fonts as a Progressive Enhancement, Ampersand 2013
andyhume
2
750
Anatomy of a responsive page load, WhiskyWeb 2013
andyhume
10
1.8k
Breaking News & Breaking Software, SyncConf 2013
andyhume
0
260
Responsive Guardian
andyhume
21
1.1k
CSS for grown ups: maturing best practises, SXSW 2012
andyhume
101
47k
Other Decks in Technology
See All in Technology
WantedlyでのKotlin Multiplatformの導入と課題 / Kotlin Multiplatform Implementation and Challenges at Wantedly
kubode
0
170
2025年の挑戦 コーポレートエンジニアの技術広報/techpr5
nishiuma
0
110
OCI技術資料 : ファイル・ストレージ 概要
ocise
3
12k
商品レコメンドでのexplicit negative feedbackの活用
alpicola
1
180
実践! ソフトウェアエンジニアリングの価値の計測 ── Effort、Output、Outcome、Impact
nomuson
0
1.8k
大規模言語モデルとそのソフトウェア開発に向けた応用 (2024年版)
kazato
2
500
PHP ユーザのための OpenTelemetry 入門 / phpcon2024-opentelemetry
shin1x1
3
1.7k
KMP with Crashlytics
sansantech
PRO
0
130
I could be Wrong!! - Learning from Agile Experts
kawaguti
PRO
8
3k
プロダクトの寿命を延ばすためにエンジニアが考えるべきこと 〜バージョンアップってなんのためにやるのか〜 / Strategies for product longevity
kaonavi
0
100
20240522 - 躍遷創作理念 @ PicCollage Workshop
dpys
0
310
ヤプリQA課題の見える化
gu3
0
160
Featured
See All Featured
It's Worth the Effort
3n
183
28k
We Have a Design System, Now What?
morganepeng
51
7.3k
YesSQL, Process and Tooling at Scale
rocio
170
14k
How GitHub (no longer) Works
holman
312
140k
Embracing the Ebb and Flow
colly
84
4.5k
jQuery: Nuts, Bolts and Bling
dougneiner
62
7.6k
Faster Mobile Websites
deanohume
305
30k
Put a Button on it: Removing Barriers to Going Fast.
kastner
59
3.6k
How STYLIGHT went responsive
nonsquared
96
5.3k
A better future with KSS
kneath
238
17k
Optimising Largest Contentful Paint
csswizardry
33
3k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
10
860
Transcript
PAGE LOAD Andy Hume THE ANATOMY OF A Responsive Day
Out, 2013 RESPONSIVE
Text
Content-Encoding: gzip Cache-Control: max-age=315360000
Content-Encoding: gzip Cache-Control: max-age=315360000 OK. NOW WE CAN TALK
http://www.flickr.com/photos/freefoto/2231356418/ Performance
page load time PERFORMANCE bandwidth use battery life server capacity
fast interface reliability
page load time PERFORMANCE page load time bandwidth use battery
life server capacity fast interface reliability
Content THREE STAGES Enhancement Leftovers
Content THREE STAGES Enhancement Leftovers
Content THREE STAGES Enhancement Leftovers
Content THREE STAGES Enhancement Leftovers
Content Enhancement Leftovers
Content Enhancement Leftovers
Content Enhancement Leftovers
Content Enhancement Leftovers
Content Enhancement Leftovers DOMContentReady event
Content Enhancement Leftovers DOMContentReady event Load event
NO. 1 TRADE OFF http://www.flickr.com/photos/funkypancake/477244177/ Trade-off: Script loading
SCRIPT LOADING <script> var script = document.createElement('script'); script.src = "app.js";
document.head.appendChild(script); </script>
SCRIPT LOADING <script src="app.js" async defer></script>
SCRIPT LOADING appendChild(script) <script async> HTML CSS JAVASCRIPT HTML CSS
JAVASCRIPT
DOMContentReady event Load event Content Enhancement Leftovers
DOMContentReady event Load event Content Enhancement Leftovers
<script> if (isModernBrowser()) { var s = document.createElement('script'); s.src =
"app.js"; document.head.appendChild(script); } </script> CUTTING THE MUSTARD
DOMContentReady event Load event Content Enhancement Leftovers
@if(isModernBrowser) { <script src="app.js" async defer></script> } CUTTING THE MUSTARD
DOMContentReady event Load event Content Enhancement Leftovers
DOMContentReady event Load event Content Enhancement Leftovers
http://www.flickr.com/photos/number10gov/4600963461/ Trade-off: CSS download
CSS DOWNLOAD <link href="main.css" rel="stylesheet" /> <!-- For larger viewports
--> <link href="larger.css" media="screen and (min-width: 350px)" rel="stylesheet" />
CSS DOWNLOAD <link href="main.css" rel="stylesheet" /> @if(isWideDevice()) { <link href="larger.css"
media="screen and (min-width: 350px)" rel="stylesheet" /> }
RESPONSIVE SERVER
RESPONSIVE SERVER Relies on device detection DeviceAtlas, WURFL RESS
NO. 3 ( 4) TRADE OFF http://www.flickr.com/photos/harikrishnanb/4264996356/ Trade-off: Web fonts
http://www.flickr.com/photos/spacemanbob/1084139169/ Web fonts
FONT LOADING Progressive enhancement
FONT LOADING Progressive enhancement Cuts the mustard
FONT LOADING Progressive enhancement Cuts the mustard Supports WOFF
FONT LOADING Progressive enhancement Cuts the mustard Supports WOFF localStorage
available
PRE-RENDER CUT THE MUSTARD? NO FONTS SHOW FONTS NO NO
SUPPORT WOFF? FONTS IN STORAGE? NO
POST-RENDER STORAGE AVAILABLE? NO FONTS SHOW FONTS NO DOWNLOAD FONTS:
BASE64 ENCODED IN JSON CACHE FONTS IN STORAGE
POST-RENDER STORAGE AVAILABLE? NO FONTS SHOW FONTS NO DOWNLOAD FONTS:
BASE64 ENCODED IN JSON CACHE FONTS IN STORAGE
http://www.flickr.com/photos/zigazou76/4412946911/ Trade-off: Images
RESPONSIVE IMAGES
Why media queries? THE FUTURE Modules, patterns, systems, components, OOCSS,
SMACSS, Standalone Viewport is irrelevant
Why media queries? THE FUTURE Modules, patterns, systems, components, OOCSS,
SMACSS, Standalone Viewport is irrelevant
RESPONSIVE IMAGES <picture alt="Describes the image."> <source src="s.jpg"> <source media="(min-width:320px)"
src="m.jpg"> </picture>
RESPONSIVE IMAGES <div data-alt="Describes the image." data-src="small.jpg" data-src-high="large.jpg" data-width="180" data-height="100"
> </div>
None
None
PERFORMANCE RESPONSIVE
PERFORMANCE
Thank-you! http://lanyrd.com/scdtfx @andyhume Creative Commons Licensed Attribution, Non-Commercial, Share Alike
cc