Time is money. Therefore, a slow site can cause you to lose money. At Sitecore Symposium, I learned about some goals for optimizing your performance, tools to help you measure, and suggestions to get you there.
Why performance matters
- It affects your search rankings
- It affects your bounce rates
- 32% bounce rate when your performance drops from 1 second to 3 seconds
- It affects your bottom line
Performance is the key to driving engagement
- Personalization
- Relevant content
- Performance
Performance tools
- Google Lighthouse
- An open-source tool to measure site performance
- Performance budget calculators
- You can try this one
- Or this one from BundlePhobia
- WebPageTest.org
- Simulates load from other regions
Optimization considerations
- Goal: Time to load first byte < 200ms
- Offload to CDN
- Optimize cache
- Disable features you are not using
- Full resource optimization
- DNS
- SSL handshake
- Connection
- Download size
- Calls to the origin server are slow and expensive (time-wise)
Optimization challenges
- AJAX
- Personalization
- Cache invalidation
Optimization solutions
- JAMStack: Pre-render pages
- Netlify/Sitelify CDN: Move content closer to your customers
- Akamai: CDN based personalization
- PIIO.co: Smart images
- Change icons to SVG
- PurifyCSS: Remove unused CSS
- Load 3rd party Javascript after the DOM load event
- Keep HTML and CSS simple: The more you have, the harder the client has to work
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Hopefully, this gives you a little insight into how to have a blazing fast site. Check out my session review page for more tips and tricks from Sitecore Symposium.
