Question: Santiago has been the marketer and site manager for FixMyCar.com for the past 15 years. He and the developer team have spent much effort improving the user enjoyment of the site. Recently, performance metrics are showing the speed of the site has regressed significantly over time. Which long-term maintenance program can help by limiting certain metrics that affect performance?
- Independent testing program
- Long-term performance audit
- Performance maintenance team
- Performance budget
Explanation
A performance budget sets measurable limits for site metrics that affect speed and responsiveness. It helps prevent performance regression by making teams check whether new changes stay within agreed limits. This keeps long-term maintenance focused on preserving a fast user experience as content and features evolve. When a metric exceeds the limit, the issue can be addressed before it harms conversion behavior.
Why the other options are incorrect
Performance maintenance team describes a staffing approach, not a defined metric-limit program.
Long-term performance audit may find issues periodically, but it does not set ongoing limits for performance metrics.
Independent testing program can support validation, but it does not define thresholds that prevent regression.
Source for verification
https://web.dev/articles/performance-budgets-101
https://web.dev/articles/your-first-performance-budget
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