In this episode, Scott and Wes chat about 20 different ways you can improve the perf, speed and overall user experience of your websites.

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Show Notes

So many perf tips came in over twitter, so in addition to this podcast I'd recommend you read all the replies to this tweet

0:00

• We just cracked 1,000,000 downloads! Thank you!

4:00

• Network Tips
• Reducing the amount of HTTP requests
• A little bit about HTTP2
• An interview about http2

8:00

• Use Caching and LocalStorage
• Turn on aggressive caching on your server - long expire times
• What is gzip? / Enabling gzip

12:00

• Using a CDN
• Listen to our episode on CDNs and #BigZips

13:00

• When to load your JS
• Blocking Requests

15:00

• Use Lazy Loading

17:00

• Preloading content with Link rel="preload"
• rel="prefetch"

19:00

• Picture, picturefill and srcset=""
• Article on srcsrc and Picture

srcset vs picture/source elements

25:00

• Image Compression
• One less jpg
• Serve less data

26:00

• Inline SVG
• Talk about Font Awesome

33:00

• CSS and JS Code
• Critical CSS

37:00

• Remove unused code
• Purify CSS
• no-unused-imports with ESlint

38:00

• Code Splitting

40:00

• Transpile less
• babel-preset-env

41:00

• Tree shaking
• Hoyyyy its a tree shaker

42:00

• Async ans defer attributes on your script tags
• Amazing site that visualizes async and defer

45:00

• Icon Fonts
• Web Fonts
• Native Font Stack:
• Good: font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;

47:00

• font-display

49:00

• Troubleshooting Performance
• Simulate Slow Network Speed
• Google Page Speed
• Wes' Page Speed Video

SIIIIICKkkkkkkkk PIXXXXX

• Scott: WiFi Surge Protector

Wes: KitSound Bluetooth Airline Converter

Shameless Plugs

• Scott is working on a Vue course!
• Wes is working on his Advanced React course!

Tweet us your tasty treats!

• Scott's Instagram
• LevelUpTutorials Instagram
• Wes' Instagram
• Wes' Twitter
• Wes' Facebook
• Scott's Twitter
• Make sure to include @SyntaxFM in your tweets