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.
- 01Measure node count and nesting on real states
- 02Find wrappers created only for styling
- 03Inspect hidden duplicated interfaces
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.
- 01Remove unnecessary wrappers
- 02Render long collections progressively or virtually when appropriate
- 03Avoid duplicating desktop and mobile DOM
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.
- 01Profile layout and interaction on large datasets
- 02Check screen-reader navigation
- 03Test printing and browser find
Common pitfall
A shortcut to avoid
A lower node count is not a goal by itself when semantic grouping or maintainable structure requires elements.
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.