PageSpeed Insights

PageSpeed Insights offers web performance measurement and diagnostics for teams finding mobile page loading bottlenecks.

Visit PageSpeed Insights official site

What it does

It combines lab diagnostics with user performance data.

When to use it

When finding mobile page loading bottlenecks, inspect mobile and desktop bottlenecks separately.

DebugBear

DebugBear offers website performance monitoring and diagnostics for teams tracking changes in Core Web Vitals.

  • performance
  • website-audit

Web Utility

HTTP Archive

HTTP Archive offers public website performance datasets and reports for teams studying trends in page resource sizes.

  • performance
  • website-audit

Research

Artillery

Artillery offers load and continuous performance testing for teams testing traffic spikes before release.

  • load-testing
  • performance

Web Utility