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
Design for loading
Search
Swwweet
June 20, 2014
Design
5
510
Design for loading
Presentation by @htmlboy and at WebVisions Barcelona, on June 2014.
Swwweet
June 20, 2014
Tweet
Share
More Decks by Swwweet
See All by Swwweet
Wonders from the Full Stack Fest website
swwweet
1
340
How to be the best web designer in the world.
swwweet
6
1.2k
Mobile First: as difficult as doing things right
swwweet
224
9.9k
One Size Fits None
swwweet
12
860
One Size Fits None - From the Front 2013
swwweet
2
710
Responsively Responsive
swwweet
23
1.6k
La letra con píxel entra
swwweet
0
1.1k
The future of code
swwweet
4
590
RWD: Dealing with navigation
swwweet
5
510
Other Decks in Design
See All in Design
デザイナー向けフライル説明資料
toshiblues
0
130
ビジネスアナリシスはビジネス”分析”じゃないよ!~システム人材が価値を生むための基盤スキルとしてのビジネスアナリシス~
bpstudy
0
620
ランドマークが光る!季節を彩るナビ体験 - Mobility Night #3 -
kitau
0
120
AIの実践とコミュニケーションデザインの意義 / AI practice and the significance of communication design
bebe
0
820
Bulletproof Design System with TypeScript
takanorip
7
4.1k
真・altはつけるだけじゃなくて -alt属性の考察 2025年版-
securecat
5
1.7k
Мышление дизайнера историями. Как текстовые модели человеческого поведения помогают проектировать
ashapiro
0
400
事例で学ぶ!今日から使えるWebサービスUI改善ポイント
ncdc
0
250
FigmaのFigmaファイルから学ぶTips & Tricks
hilokifigma
0
660
Goodpatch Tour💙 / We are hiring!
goodpatch
31
890k
CMS管理画面のアクセシビリティ
magi1125
8
2.5k
「描く」という衝動に立ち返る〜Figma Drawがひらく思考のかたち〜
transit_kix
1
1.1k
Featured
See All Featured
Imperfection Machines: The Place of Print at Facebook
scottboms
268
13k
How to train your dragon (web standard)
notwaldorf
96
6.2k
We Have a Design System, Now What?
morganepeng
53
7.8k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
29
1.9k
Building Applications with DynamoDB
mza
96
6.6k
How to Ace a Technical Interview
jacobian
279
23k
[RailsConf 2023 Opening Keynote] The Magic of Rails
eileencodes
30
9.7k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
285
14k
How STYLIGHT went responsive
nonsquared
100
5.8k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
46
7.6k
Automating Front-end Workflow
addyosmani
1370
200k
GitHub's CSS Performance
jonrohan
1032
460k
Transcript
DESIGN FOR LOADING Javier Usobiaga @htmlboy
None
@HTMLBOY Swwweet.com
How much time does a website need to be
loaded?
How much does it weigh?
THE PROBLEM
“We've remade the Internet in our image… Obese.” –
Jason Grigsby –
The average webpage was 1.46MB in June 2013.
Mostly images. Source: httparchive.org
The average webpage in June 2014 is 1.78MB.
Mostly images. Source: httparchive.org
None
milwaukeepolicenews.com 7MB
grolsch.com 25MB
moto.oakley.com 85MB
Just because we can, it doesn’t mean we should.
None
None
74% of mobile users won’t wait longer than 5 seconds
for a page to load. Source: bit.ly/5secondsmobile
20€/month for 1GB
85MB = 1.70€ 20€/month for 1GB
US roaming: 10€/MB
85MB = 850€ US roaming: 10€/MB
None
None
Consider performance as a design principle.
Set a performance budget.
“Don't make more than 20 http requests.”
“Make the page weigh less than 300KB.”
“1. Optimize an existing feature or asset. 2. Remove an
existing feature or asset. 3. Don’t add the new feature or asset.” – Steve Souders –
How much time does a website need to be
loaded?
None
How much time does a van need to hit
the water when falling from a bridge?
None
INCEPTION TIME
INCEPTION TIME when milliseconds become hours (or never)
How much time does a website need to be
loaded?
How much time does a website need to look
loaded?
Perceived performance
DESIGN FOR LOADING: JS & NAVIGATION
Performance 101: JS belongs at the end of the HTML
“We don't have any non-JavaScript users… No, all your
users are non-JS while they're downloading your JS.” – Jake Archibald –
No JS = No navigation
JS folding = visual glitch
None
None
<div class=container> <header> <!- -Logo and headings- -> </header> <nav>
<!- -Navigation links- -> </nav> <section class=content> <!- -Err… content- -> </section> </div>
.container{display: table;} ! nav{display: table-footer-group;}
None
None
css-tricks.com/snippets/css/a-guide-to-flexbox
DESIGN FOR LOADING: WEB FONTS
FOUT Flash Of Unstyled Text
None
None
None
Consider not using web fonts for body copy.
Choose a fallback with a similar x height.
None
None
Use JS to control the inbetween stages.
github.com/typekit/webfontloader
.wf-loading .wf-active .wf-inactive .wf-<familyname>-<fvd>-loading .wf-<familyname>-<fvd>-active .wf-<familyname>-<fvd>-inactive
Add a timeout to trigger rendering of at least one
font.
WebFontConfig = { google: { families: ['Droid Sans'] }, timeout:
2000 };
Consider a lazy load on the first visit, and
display only cached webfonts.
DESIGN FOR LOADING: IMAGES
The average webpage in June 2014 is 1.78MB.
Mostly images.
Optimize images: ImageOptim JpegMini SVGO
addyosmani.com/blog/image-optimization-tools
Regular JPEG
Progressive JPEG
But… what happens before the image is downloaded?
FOLOI Flash Of Lack Of Images (duh)
No image = visual glitch
span.main-image{ display: block; min-height: 500px; background: #EEE; }
Min-height = no glitch
DESIGN FOR LOADING: GOING FURTHER
Conditionally load, or avoid: secondary assets third-party content iframes social
plugins
Consider plain links instead of social plugins/iframes.
https://twitter.com/intent/tweet? url=http://bit.ly/ ancientMistery&text=What+is+your+sound? &via=htmlboy Twitter:
http://www.facebook.com/sharer.php? u=http://bit.ly/ancientMistery&t=What+is +your+sound? Facebook: https://plus.google.com/share? url=http://bit.ly/ancientMistery Google+:
Maybe inline critical CSS/JS?
None
None
WRAPPING UP
loading
Browsers won’t wait for every file to be loaded.
Accept that, and design also for loading.
THANKS! @htmlboy ·
[email protected]