Codecov JavaScript Bundle Analysis is now generally available, included with your Codecov plan at no added cost.

Bundle analysis prevents you from merging oversized bundles that would be detrimental to site performance by allowing you to:

• Track bundle size and changes right in your pull request
• See total bundle size, estimated gzip size, and download time in the Codecov UI
• Drill into asset and module level data to hunt down oversized assets quickly
• Enforce size or percentage increase limits with Status Checks to prevent problematic merges

Get started by reading the docs.