- Independent testing program
- Long-term performance audit
- Performance maintenance team
- Performance budget
Correct answer is: A performance budget
A performance budget is a set of limits on specific metrics that affect site performance. The concept is similar to a financial budget: You set a limit and make sure you stay within it. If you choose to spend a large amount on one thing, you may need to make sacrifices elsewhere to stay within budget. It’s the same give-and-take for user experience and site performance. A performance budget might include the total size of a page, the average page load time, or the size of specific images.
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. A performance budget, that is a long-term maintenance program, can help Santiago by limiting certain metrics that affect performance.