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Building a Performance Culture
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Web Performance
How to measure & improve your ecommerce site speed
Icon fonts are usually a bad idea
There are some major drawbacks to using icon fonts that cause web performance issues.
Anti-flicker snippets delay rendering
Anti-flicker snippets are used by client-side A/B testing libraries like Google Optimize, but they also delay rendering.
Use nomodule for polyfills
Avoid serving legacy JavaScript to modern browsers by adding the nomodule attribute to your polyfills.
Making Cybertruck Faster
Seeing how web performance changes can improve the loading time of the Cybertruck landing page.
Testing Site Speed Changes with Local Overrides
Quickly learn if a site speed change will have a positive impact, without hassling your dev team.
Tracking Custom Metrics
Why and how to track your own custom metrics for your ecommerce site
Self-Hosting Google Fonts
We found self-hosting Google Fonts can improve Largest Contentful Paint by as much as 1.3 seconds
The Critical Path
Understanding the critical path is a huge step to improving your ecommerce site speed.