In this Hasty Treat, Scott and Wes continue their discussion of website page speed — five more things that make your site slow!

Sentry - Sponsor

If you want to know what’s happening with your errors, track them with Sentry. Sentry is open-source error tracking that helps developers monitor and fix crashes in real time. Cut your time on error resolution from five hours to five minutes. It works with any language and integrates with dozens of other services. Syntax listeners can get two months for free by visiting Sentry.io and using the coupon code “tastytreat”.

Show Notes

03:01 - Shipping too much JS

Code splitting
Webpack Bundle Analyzer
Look at dependencies of libraries
Use fewer libraries

06:38 - Not bundling code

Build process

08:24 - Not compressing code

Google Closure Compiler
Gzip via your server serving assets
Minify CSS + JS

11:45 - Loading JS asynchronously

Where should I put tags in HTML markup?
Solution: Lazy load JS as needed
Solution: Show HTML first, load JS in the footer
Solution: Use Async + Defer

16:42 - Missing indexes on DB

What is a DB index?
Where should you add them?
MongoDB Compass

Links

Syntax 239: Hasty Treat - 5 Things That Make Your Site Slow
Google PageSpped

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

Когда Украина получит F-16?