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
Web & Mobile
Search
Sponsored
·
Ship Features Fearlessly
Turn features on and off without deploys. Used by thousands of Ruby developers.
→
Jean Carlo Emer
November 19, 2016
Technology
1
190
Web & Mobile
This talk is about two important subjects and their intersection.
Jean Carlo Emer
November 19, 2016
Tweet
Share
More Decks by Jean Carlo Emer
See All by Jean Carlo Emer
Thinking metrics on React apps
jcemer
0
170
Cache em aplicações web
jcemer
0
300
Aplicações Web - um estudo sobre React
jcemer
1
200
Lapidando o Globo Play
jcemer
1
270
Desenvolvedor mobile precisa aprender Web
jcemer
1
120
Evolução e futuro do uso de paradigmas no JavaScript
jcemer
3
610
Tudo o que a web (podia ser) ainda será
jcemer
8
630
Embarque App
jcemer
0
490
Componentes para a web
jcemer
15
1.2k
Other Decks in Technology
See All in Technology
データの整合性を保ちたいだけなんだ
shoheimitani
8
2.9k
広告の効果検証を題材にした因果推論の精度検証について
zozotech
PRO
0
120
usermode linux without MMU - fosdem2026 kernel devroom
thehajime
0
220
ClickHouseはどのように大規模データを活用したAIエージェントを全社展開しているのか
mikimatsumoto
0
190
20260204_Midosuji_Tech
takuyay0ne
0
110
Introduction to Sansan, inc / Sansan Global Development Center, Inc.
sansan33
PRO
0
3k
(金融庁共催)第4回金融データ活用チャレンジ勉強会資料
takumimukaiyama
0
130
セキュリティについて学ぶ会 / 2026 01 25 Takamatsu WordPress Meetup
rocketmartue
1
290
生成AI時代にこそ求められるSRE / SRE for Gen AI era
ymotongpoo
5
2.7k
2026年、サーバーレスの現在地 -「制約と戦う技術」から「当たり前の実行基盤」へ- /serverless2026
slsops
2
210
ZOZOにおけるAI活用の現在 ~開発組織全体での取り組みと試行錯誤~
zozotech
PRO
5
4.9k
Frontier Agents (Kiro autonomous agent / AWS Security Agent / AWS DevOps Agent) の紹介
msysh
3
150
Featured
See All Featured
Claude Code のすすめ
schroneko
67
210k
Groundhog Day: Seeking Process in Gaming for Health
codingconduct
0
91
The Organizational Zoo: Understanding Human Behavior Agility Through Metaphoric Constructive Conversations (based on the works of Arthur Shelley, Ph.D)
kimpetersen
PRO
0
240
Amusing Abliteration
ianozsvald
0
96
Reality Check: Gamification 10 Years Later
codingconduct
0
2k
Code Reviewing Like a Champion
maltzj
527
40k
Believing is Seeing
oripsolob
1
53
30 Presentation Tips
portentint
PRO
1
210
Google's AI Overviews - The New Search
badams
0
900
世界の人気アプリ100個を分析して見えたペイウォール設計の心得
akihiro_kokubo
PRO
66
36k
BBQ
matthewcrist
89
10k
職位にかかわらず全員がリーダーシップを発揮するチーム作り / Building a team where everyone can demonstrate leadership regardless of position
madoxten
57
50k
Transcript
Web & Mobile @jcemer
I work on GloboPlay. globo.com
This talk is about two important subjects and their intersection.
None
None
Mobile devices are dominating the Internet.
Companies should focus on a mobile- first approach for
their websites.
https://speakerdeck.com/jcemer/
1. Mobile Web versions
Facebook and Google are trying to filter and classify the
Web.
None
None
None
None
Instant Articles are a new way for any publisher to
create fast, interactive articles on Facebook.
None
None
The average load time was between 0 and 300
ms, compared with 3.66 seconds for similar web articles.
No ads can appear above the fold. This would help
with rapid initial loading.
The biggest mistake we’ve made as a company is betting
on HTML5 over native. @Zuckerberg, 2012
The key to Instant Articles' functionality is the strictly formatted
HTML5 which is optimized for faster loading.
https://developers.facebook.com/ docs/instant-articles/reference/
None
37% + reach 22% + shares 83% + Likes 57%
+ link clicks. https://blog.hootsuite.com/started-using-facebook- instant-articles/
As with any publishing platform, the value of Instant Articles
greatly depends on your business model and goals. https://blog.bufferapp.com/facebook-instant-articles
Users won't have to click out of Facebook to view
an article.
None
None
None
None
None
AMP-HTML is simply HTML5 with a set of specifications (requirements
and restrictions).
https://github.com/ampproject/amphtml
None
The big players are trying to restrict and split
the Web.
None
AMP and Instant Articles create different versions of a same
website.
2. Mobile Apps
None
None
No-one is going to install an app for each service,
your mobile Web experience has to be good.
None
Deepest engagement for the longest period of time happens in
Apps, so Apps matter. http://venturebeat.com/2015/09/25/wait-what-mobile-browser- traffic-is-2x-bigger-than-app-traffic-and-growing-faster/
Native apps might survive.
Progressive Web Apps
Progressive Web Apps have the reach of the web, and
are reliable, fast and engaging.
https:// dev.opera.com/
None
1. Deliver a Mobile-friendly design™
None
None
<meta name="viewport" content="width=device-width">
@media screen and (max-width: 1000px) { /* Styles */
} @media screen and (max-width: 560px) { /* Styles */ }
None
Designing in the browser allows the designer to keep checking
the results in different devices.
None
16:1 3:4 2:3
None
2. Apply progressive enhance
The app should works for every user, regardless of browser
choice.
Responsive Design != one size fits all. @Brad Frost
Don’t get hung up thinking that media queries are the
only tool in your toolbox. @Brad Frost
I work for Booking.com, and we support IE 7, and
I use flexbox. @Zoe Mickley
Start with the content and then enhance the experience.
Modernizr tells you what HTML, CSS and JavaScript features the
user’s browser has to offer. https://modernizr.com/
None
@Brad Frost
3. Ensure fast page load performance
0.1 second reacting instantaneously. @Jakob Nielsen, 1993
1 second user will notice the delay.
10 seconds users will want to perform other tasks while
waiting.
Source: Forrester Consulting http://bit.ly/1ttKspI
None
https://developers.google.com/ speed/pagespeed/insights/
None
https:// webpagetest.org/
4. Use a secure network connection
HTTPS ensures that the contents of communications between the user
and site cannot be read or forged.
None
The page that's making the Geolocation API call must be
served from a secure context.
https:// letsencrypt.org/
5. Create a manifest.json
Manifest enable add to homescreen and a launch experience
more comparable to native apps.
None
None
None
None
https://www.w3.org/TR/appmanifest/
None
6. Allow the app to be loaded on offline/flaky connections
None
Service workers allow good caching strategies.
Source: https://auth0.com/blog/creating-offline-first- web-apps-with-service-workers/
https:// googlechrome.github.io/ samples/service-worker/ custom-offline-page/
http://www.slideshare.net/caelumdev/ serviceworkers-sergio
None
PWAs can also benefit from push notifications, like
native apps.
None
None
https:// pwa.rocks/
PWAs are in equal parts new Web APIs, design patterns,
and marketing fluff.
The Web still matter…
Thank you! @jcemer