For any consumer-facing application, site speed is an important element of the overall user experience, which extends to all platforms where your app is available, including the web, iOS, and Android. Studies have shown that site speed impacts user engagement, revenue, and other key business metrics. What steps can you put in place to ensure your page load time (PLT) stays within the desired threshold?

It’s important to note that performance has a tendency to degrade over time—this is something we’ve experienced firsthand at LinkedIn. These degradations are not usually dramatic, single-event occurrences; after all, steps like A/B testing or canary analysis are designed to catch those types of flaws prior to production rollout. Rather, site slowdowns tend to occur over a period of time due to smaller-scale latency leaks: little changes in code, browser configurations, or other areas that add up over time.

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