In this Hasty Treat, Scott and Wes are back with part 2 on how to develop for slow internet connections. Kyle Prinsloo Freelancing - Sponsor Kyle Prinsloo teaches you everything you need to know about freelancing, including how to quit your job, earn a side-income and start taking control of your life. Check it out at studywebdevelopment.com/freelaning. Use the coupon “SYNTAX” and get 25%. Show Notes 03:27 - Images Resize client-side when uploading Lazy load or progressive JPG Width + height so the content doesn’t shift with placeholders Compress your images - lossless and lossy Use SVG where possible 08:33 - Scripts + CSS assets Hasty Treat - 5 Things That Make Your Site Slow Hasty Treat - 5 More Things That Make Your Site Slow 08:51 - Video Variable-rate video is key 09:13 - Connections that go in-n-out a lot Save form state on page refresh Show UI when user goes offline window.addEventListener('offline', updateOnlineStatus); window.addEventListener('online', updateOnlineStatus); Retrying in _____ 10:27 - Service workers! Serves up local cache initially 12:05 - Fonts Font-display CSS https://css-tricks.com/font-display-masses/ Sometimes possible: tree shake your fonts - load only the characters you need font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif; 14:04 - CSS tricks Text over background image — make sure you also set a color so the text will show while the image is loading 14:37 - Testing slow connections Dev tools Mimic a speed, or 3G Links ImageOptim Slack Discord Cloudflare Workbox by Google Chrome Dev Tools Firefox Dev Tools 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