SAVED REPORT COMPARISON

What changed between two tests?

Open two saved reports side by side. This page only reads saved measurements; it never starts a speed test.

Choose your reports

Use a saved /r/ link or its 48-character ID. Choose the earlier test as A and the later test as B for a before-and-after view.

Two saved reports are needed. Reports can come from Website or Shopify tests, on Desktop or Mobile. Different test conditions will be clearly identified.