Hasty Treat - 5 More Things That Make Your Site Slow

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