Lab Data
Sitecheck Team
Performance data measured in a controlled environment.
Lab data is performance data measured in a controlled environment using consistent devices and network settings. Tools like Lighthouse generate lab metrics for repeatable testing and debugging.
Why it matters: Lab tests are ideal for diagnosing issues and validating improvements before shipping changes.
Quick tips:
- Use fixed throttling profiles for consistent comparisons.
- Track trends over time, not just single runs.
- Pair lab data with RUM for real-world context.