Instructions: Open DevTools Network panel BEFORE loading this page. You should see prefetch requests appear immediately when the page loads.
These links are prefetched as soon as the page loads. Check the Network panel - you should see prefetch requests that happened immediately.
Subpage 1 (immediate) Subpage 2 (immediate)This link has no speculation rule and should never be prefetched automatically.
Subpage 3 (no rule)