Evidence review
What to inspect before changing anything
Start with the delivered website and the real user journey. Record the current state so the team can distinguish an observed problem from an assumption and compare the same surface after deployment.
- 01Locate every backdrop-filter and translucent surface
- 02Check readability over changing backgrounds
- 03Measure rendering cost on lower-powered devices
Implementation
A practical improvement plan
Make the smallest coherent change that solves the observed problem. Keep normal code review, accessibility, security and product checks in the loop instead of optimizing for the scan alone.
- 01Limit blur to meaningful overlays
- 02Provide an opaque fallback
- 03Increase separation with layout before effects
Verification
How to verify the result
Verification should test the intended outcome and the most likely regression. Use the production delivery path whenever headers, caching, rendering or third-party services affect the result.
- 01Test with reduced transparency and low-end emulation
- 02Scroll while profiling paint work
- 03Check text over worst-case imagery
Common pitfall
A shortcut to avoid
Reducing blur radius without reconsidering the layer still leaves an unnecessary visual effect.
Further reading
Primary guidance and references
These sources provide standards, security guidance or the interpretation framework used to keep this guide bounded. Product-specific implementation still requires review in the actual codebase.