See here for a snapshot original blog
Key takeaways
Some very actionable optimization for loading performance:
- Inlining critical CSS
- Tag important images to be loaded early
- Avoid fonts or synchronous scripts that delay early rendering
- Reduce round trips required for loading
Many error-checking and auditing tools that developers rely on (Lighthouse, Chrome DevTools Issues tab) are passive and require some form of user interaction to retrieve information. Developers are more likely to act when errors are surfaced directly within their existing tooling, and when they provide concrete and specific actions that should be taken to fix the problem.
Conformance rules:
- Strong default
- Actionable rules
- Authoring time