expo.dev speed test — 20 Oct 2026

What these numbers mean

• The first byte arrived in 291 ms. That is workable, and the cheapest win left is caching or a warmer connection.
• The page transfers 103.6 KB over 26 request(s). Images files are 53% of it, so resize and recompress the largest images before anything else.
• The HTML itself arrives zstd-compressed.
• It runs over HTTP/3, so the assets share a connection instead of opening one each.
• 48% of the weight comes from other hosts (analytics, fonts, embeds), which also means their slow day becomes your slow day.
• The largest element painted at 588 ms, inside the 2.5 s Google calls good.
• The main thread was blocked for 398 ms, so taps and scrolling wait while scripts run.

Fix first: Render-blocking resources - Add defer or async to scripts that do not change the first paint, inline the critical CSS, and load the rest with media="print" plus an onload swap.

Read on one shared server, not a visitor's phone: use it to compare pages against each other, not as a promise about every connection. We fix what these tests find.