Upgrade to Pro — share decks privately, control downloads, hide ads and more …

The 12MB Web Page: A tale of perfect PageSpeed ...

Avatar for Ben Smithett Ben Smithett
May 09, 2016
Technology
360
1

The 12MB Web Page: A tale of perfect PageSpeed scores & developer happiness

Quick little talk I did at an Envato Code Party on May 9 2016.

Avatar for Ben Smithett

Ben Smithett

May 09, 2016

More Decks by Ben Smithett

See All by Ben Smithett
Atomic CSS with Fela
Avatar for Ben Smithett bensmithett
0
140
Objects in Space: A practical guide to CSS display, position & z-index
Avatar for Ben Smithett bensmithett
0
75
The UI is an Application
Avatar for Ben Smithett bensmithett
0
1.2k
Hands on with the modern front end stack
Avatar for Ben Smithett bensmithett
0
1.3k
The New Front End Stack: A really really really high level introduction
Avatar for Ben Smithett bensmithett
1
550
Smarter Sass/Less Builds with Webpack (MelbJS Edition)
Avatar for Ben Smithett bensmithett
0
350
Smarter Sass builds with Webpack
Avatar for Ben Smithett bensmithett
1
260
Faking Real Time: Optimistic Updates & Eventual Consistency (Decompress 2015)
Avatar for Ben Smithett bensmithett
0
520

Other Decks in Technology

See All in Technology
Master Dataグループ紹介資料
Avatar for Sansan, Inc. sansan33
PRO
1
4.8k
OSPN.JPバージョンアップ作業進捗のご報告 / 20260801-osc26kyoto
Avatar for Akira Ouchi akkiesoft
0
460
生成 AI の基礎 〜 サンプル実装で学ぶ基本原理
Avatar for Etsuji Nakai enakai00
7
4.4k
Data Hubグループ 紹介資料
Avatar for Sansan, Inc. sansan33
PRO
0
3.2k
ボトムアップ文化が強い組織で セキュリティをどう根付かせていくかの現在進行形の話 / Making Security Stick in a Bottom-Up Organization
Avatar for Takashi Yamaguchi yamaguchitk333
0
210
[しろおび夏祭り2026] チャットするAIから、作業するAIへ - 使われ方の変化と、その裏側で起きていること
Avatar for kk0n kk0n
0
1.7k
グローバル基準のSREは、運用現場でどう機能したか：成熟度アセスメントの実践 ／ SRE NEXT 2026
Avatar for sorawatanabe sorawatanabe
0
170
Model Studio CLI × Token Plan
Avatar for 尾関将樹 | めい maigo999
0
140
え？フロントエンドエンジニアの ワイがインフラも！？
Avatar for puku0x puku0x
1
500
20260804_Q4AzureUpdateBite_FabricDataAgentの精度を高める設計.pdf
Avatar for matayuuu matayuuu
1
120
事業価値と Engineering 2026年度版
Avatar for Recruit recruitengineers
PRO
45
23k
関東Kaggler会発表資料
Avatar for takoi takoi
1
210

Featured

See All Featured
How to make the Groovebox
Avatar for あそなす asonas
2
2.3k
The Illustrated Guide to Node.js - THAT Conference 2024
Avatar for David Neal reverentgeek
1
430
Skip the Path - Find Your Career Trail
Avatar for Mark Kilby mkilby
1
180
Ruling the World: When Life Gets Gamed
Avatar for Sebastian Deterding codingconduct
0
290
Avoiding the “Bad Training, Faster” Trap in the Age of AI
Avatar for Mike Taylor tmiket
0
200
The Anti-SEO Checklist Checklist. Pubcon Cyber Week
Avatar for Ryan Jones ryanjones
0
200
The Straight Up "How To Draw Better" Workshop
Avatar for Dennis Kardys denniskardys
239
140k
The Curse of the Amulet
Avatar for Matthew Lei leimatthew05
2
14k
Unsuck your backbone
Avatar for Amy Palamountain ammeep
672
58k
Have SEOs Ruined the Internet? - User Awareness of SEO in 2025
Avatar for Akash Hashmi akashhashmi
0
410
Learning to Love Humans: Emotional Interface Design
Avatar for Aarron Walter aarron
275
41k
Building a Modern Day 
E-commerce SEO Strategy
Avatar for Aleyda Solis aleyda
45
9.2k

Transcript

  1. The 12MB Web Page A tale of perfect PageSpeed scores

    & developer happiness
  2. None
  3. None
  4. None

  5. A static HTML page + some photos Fast? Easy to

    build? Free?

  6. Fast?

  7. https://eev.ee/blog/2016/03/06/maybe-we-could-tone-down-the-javascript/

  8. http://idlewords.com/talks/website_obesity.htm

  9. Web pages are pretty fast by default! They only get

    slow when we add “clever” cruft

  10. on the other hand…

  11. Photos are biiiiiiiiiig!

  12. The challenge: Can I make a blazing fast, image- heavy

    web page without resorting to lots of hacks & workarounds

  13. How fast can a simple HTML document be?

  14. None
  15. None
  16. None
  17. None
  18. None

  19. Speed Index: 1613 In the fastest ~10% of all websites

  20. Optimisation #1 A truthful browser spinner

  21. https://medium.com/@kellycatchpole/10-best-dog-breeds-for-your- family-22ea2cdde78d Browser says page has finished loading LIES!!!!

  22. Don’t make the browser spinner lie. When the page says

    it’s done loading, it’s really done!

  23. Optimisation #2 Progressive JPEG

  24. None

  25. Optimisation #3 Responsive Images

  26. Widescreen + Retina: 11.1MB Tablet + Retina: 9.8MB Phone +

    Retina: 8.7MB Widescreen: 7.8MB Tablet: 6.5MB Phone: 1.7MB

  27. Optimisation #4 Font Face Observer

  28. None

  29. https://github.com/bramstein/fontfaceobserver

  30. None

  31. Optimisation #5 <script async src=“…”>

  32. Optimisation #6 Cache everything forever

  33. None

  34. Optimisation #7 Use a CDN

  35. None

  36. Notable absentees: • “Critical CSS” • Loading content asynchronously •

    Anything very tricky or hacky at all…

  37. Easy to build?

  38. I couuuld hand-write the HTML & CSS for this, but

    I want…

  39. • A living styleguide! • Sass! • Hot reloading! •

    Reusable components!

  40. The tooling: • React (no client side!) • Webpack +

    static-site-generator-webpack-plugin • Sass • CSS Modules

  41. React is a better back-end templating language than your favourite

    back-end templating language.
  42. None
  43. None

  44. Free?

  45. GitHub Pages + CloudFlare =

  46. GitHub Pages has pretty crappy caching settings…

  47. None

  48. But if you stick CloudFlare in front of it…

  49. Easy cache header setting!

  50. Free SSL! (well, “flexible SSL”)

  51. A static HTML page + some photos Fast Easy to

    build Free ✅ ✅ ✅