GitLab Browser Performance Testing

GitLab features a useful tool for measuring the performance of a website, similar to Pagespeed insights. With this, you can measure the performance of your website after every deployment or even at each merge request. I have set this up for our homepage.

All it takes are a few adaptations to the gitlab-ci.yaml:

1include:
2  template: Verify/Browser-Performance.gitlab-ci.yml
3
4browser_performance:
5  only:
6    - main
7  needs:
8    - deployProd
9  variables:
10    URL: https://newcubator.com/
11    SITESPEED_OPTIONS: -n 5

If you're making use of review apps, you can even evaluate the performance for each merge request.

Find more in the GitLab documentation:

https://docs.gitlab.com/ee/ci/testing/browser_performance_testing.html