Browser load testing early access

We're excited to share that mabl performance tests now support browser load testing! Add existing functional browser tests to a mabl performance test to measure your application's performance under load.

Performance metrics for browser load tests include:

  • Functional test failure rate
  • Core Web Vitals
  • Step duration


What are Core Web Vitals?

Core Web Vitals are a set of metrics defined by Google that measure different aspects of the user experience. By improving your application's Core Web Vitals, you can improve your application's SEO and its overall perceived responsiveness.

How can I get access?

During the early access program, customers who have not already purchased performance testing may enable it in Labs and receive 500 VUH for free to try it out. You must be a workspace owner to turn on this feature.


Early access feature

Access and pricing are subject to change until performance testing is available for general availability. Prior to general availability, changes to performance testing may be made without notice.

How does it work?

To build a browser load test, create a new performance test and select existing browser tests. Configure the settings for the test, including concurrency, run time, and failure criteria.

Setting failure criteria

Setting failure criteria

After running the test in the cloud, you can view an output summary and dig deeper into metrics for specific steps, such as the largest contentful paint (LCP) or step duration in the table below.

Reviewing browser load test output

Reviewing browser load test output

Learn more

To learn more about performance testing in mabl, check out the getting started guide and the performance testing overview.