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High Performance Web Design
1.
High Performance Web
Design Koji Ishimoto Web Designer October 24, 2009 CSS Nite in ISHIKAWA Twitter:#CSSNiteIshikawa
3.
Agenda
4.
1. What’s High
Performance?
5.
Essential Knowledge for
Frontend Engineers
6.
80:20 Browser : Server
7.
2. Why High
Performance?
8.
+500ms 20% fewer
searches
9.
+100ms 1% drop
in sales
10.
Page views
11% Conversions 7% Customer satisfaction 16%
11.
Response Times
Jakob Nielson
12.
Time is Money
13.
3. How do
you measure it?
14.
Performance Tools
Packet Sniffers Performance Analyzers
15.
Packet Sniffers
16.
Fiddler Runs on Microsoft
Windows
17.
Firebug Net Panel
Firefox add-on
18.
Web Inspector Resources
Panel Safari’s Web Inspector
19.
Performance Analyzers
20.
Page Speed Firefox
add-on
21.
YSlow for Firebug
Firefox add-on
22.
Grade
23.
Components
Statistics
24.
YSlow Grade
Grade (score) Components Weights Yahoo! C (77) 28 889.4k Google A (97) 4 22.9k YouTube C (71) 24 178.0k Rakuten E (55) 111 940.2k Livedoor D (68) 71 367.1k Goo E (59) 61 275.8k Amazon D (67) 71 399.2k 2009/10/14 YSlow Ruleset applied: Classic(V1)
27.
How to Use
28.
You can’t improve
what you can’t measure
29.
4. What should
I do to improve?
30.
14 Steps to
Faster Loading Web Sites
31.
20 More Best
Practices
32.
Performance Best Practices
33.
Too Many!
34.
Make Fewer HTTP
Requests
35.
What’s HTTP Requests?
Images Scripts Stylesheets Flash
36.
Make Fewer HTTP
Requests Image Maps CSS Sprites CSS Inline Images Combined Scripts and Stylesheets
38.
Space Pen
39.
Design Solutions
41.
5 Planes Model
Jesse James Garrett
43.
Visual Design Interface
Design Navigation Design Information Design
44.
Feng-GUI V2
Heatmap
47.
CSS Nite Banner
Test Original +116% +24.4%
48.
COOKPAD Premium Services
49.
Design is Not
Decoration
51.
Interface Design
Navigation Design Information Design Interaction Design Information Architecture Functional Specifications Content Requirements
52.
Spry
Google Web Toolkit MooTools Ext JS MochiKit Dojo jQuery Prototype script.aculo.us Yahoo! User Interface Library
54.
Web Analytics
56.
Know Your Audience
58.
Functional Specifications
Content Requirements User Needs Site Objectives
60.
Visitor Attention and
Web Page Exposure
61.
Why Web Users
Scan Instead of Read Jakob Nielson
63.
iPod Experience
64.
One Page One
Theme One Screen
65.
Know What You
Want
66.
5. Conclusion
67.
Clear Objectives
68.
Consistent Design
69.
Clean Code
70.
High Performance Site!
71.
Thank you!
72.
See Also • http://warikiru.blogspot.com/2009/05/yslow-20-release.html •
http://warikiru.blogspot.com/2009/03/web-site-performance-seminar-at-gomez.html • http://warikiru.blogspot.com/2008/12/design-fast-websites-dont-blame-rounded.html • http://warikiru.blogspot.com/2008/12/understanding-progressive-enhancement.html • http://warikiru.blogspot.com/2008/09/visitor-attention-and-web-page-exposure.html • http://www.ideaxidea.com/archives/2008/03/37_signals.html • http://journal.mycom.co.jp/news/2008/03/27/016/index.html • http://coliss.com/articles/build-websites/operations/web-performance-best-practices-from-google.html • Web — 14 • — • —5 • Design rule index— 100 • Even Faster Web Sites: Essential Knowledge for Frontend Engineers
73.
Credits • http://www.flickr.com/photos/kenhurlford/986744061/ • http://www.flickr.com/photos/generated/99991779/ •
http://www.flickr.com/photos/comphacker/3177112563/ • http://www.flickr.com/photos/jeffbelmonte/8228640/ • http://www.flickr.com/photos/pinksherbet/3206805049/ • http://www.flickr.com/photos/eflon/3465042138/ • http://www.flickr.com/photos/mikebaird/332877581/ • http://www.flickr.com/photos/dm-set/3493848714/ • http://www.flickr.com/photos/runtcake/2606448656/ • http://www.flickr.com/photos/jking89/3291408977/ • http://www.flickr.com/photos/wrote/2340192847/ • http://www.flickr.com/photos/qmnonic/266203795/ • http://www.flickr.com/photos/aubergene/380451857/ • http://www.flickr.com/photos/wolfgangstaudt/2051232504/ • http://www.flickr.com/photos/wwworks/1384954600/ • http://www.flickr.com/photos/nicole_hugo/3478088864/ • http://www.flickr.com/photos/scragz/2718035962/ • http://www.flickr.com/photos/elgrandee/2458845042/ • http://ja.wikipedia.org/wiki/ %E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Jakob_Nielsen_1.jpg
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