www.openstreetmap.org speed test — 20 Oct 2026
Measured from the wfix.shop server on 20 October 2026 at 12:24 UTC. Grade A (90/100), with the screenshots, the timings and the fixes that matter.
Where the first byte went
- DNS lookup 50 ms 13%
- TCP connect 30 ms 8%
- Server wait 305 ms 79%
Measured on the connection that fetched the HTML. Every other request on the page waits for the end of this bar before it can start.
How this page compares
Every report published here is in this comparison, so it is a reference population of pages tested from one server - not a benchmark of the whole web.
What these numbers mean
- The first byte arrived in 384 ms. That is workable, and the cheapest win left is caching or a warmer connection.
- The page transfers 805.2 KB over 26 request(s). Javascript files are 53% of it, so defer what is not needed for the first screen, and drop tags nobody uses.
- The HTML itself arrives br-compressed.
- It runs over HTTP/3, so the assets share a connection instead of opening one each.
- The largest element painted at 1.00 s, inside the 2.5 s Google calls good.
- Layout stayed still (CLS 0.059), so nothing jumps under the reader's cursor.
- The main thread was blocked for 66 ms in total, which is not enough to feel.
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.
Screenshot
What the page looks like
Loaded in headless Chromium on this server. Click an image to open it full size.
Browser render
The same URL loaded in a real browser, so these are the readings curl cannot produce. The grade above is still built from the server measurements.
Page weight by type
What the page is made of
Transfer size, compressed as sent. 26 request(s) in total, 805.2 KB across all of them.
Top issues
Render-blocking resources
high impact8 render-blocking resource(s) in the document head (4 script(s), 4 stylesheet(s)). The page cannot paint until each one arrives.
Fix: 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.
Cache static assets
medium impact1 asset(s) answer without a Cache-Control max-age, so browsers revalidate them on every visit.
Fix: Version filenames on change and serve them with a long max-age plus immutable. That is what makes a returning visitor fast.
JavaScript weight
medium impact1 JavaScript file(s) over 200 KB: application-3901b15b6f7d3d1a2230f955618d0bf378642e9ba2d6e87a67ac7c26875231cf.js (370.3 KB)
Fix: Split routes, remove unused dependencies, and prefer a two-file build (one pinned library, one application bundle) over many small ones.
Avoid extra redirects
medium impact1 redirect hop(s) before the page load started, each one a full round trip before the first byte.
Fix: Link to the canonical URL (and make sure http, the apex domain and www all point at it) so no visitor pays a redirect first.
Waterfall
Slowest requests
Each bar is one request's own response time, scaled to the slowest. Assets were fetched in parallel, so the bars overlap in real time rather than stacking. first party third party
| Request | Type | Status | Time | Size |
|---|---|---|---|---|
| https://matomo.openstreetmap.org/matomo.php?idsite=1 3rd party | images | 200 | 1.27 s | 43 B |
| https://www.openstreetmap.org/assets/apple-touch-icon-76x76-1740d6e7a59521693c496dd8fbe1caf3d5ad302017cb0f5073b6914b4f5b7544.png | images | 200 | 944 ms | 11.2 KB |
| https://www.openstreetmap.org/assets/apple-touch-icon-72x72-63c6fdf3ddf65feebac1c0441bf6a378d1e4bde7107f598ae86733c402895eae.png | images | 200 | 942 ms | 10.4 KB |
| https://www.openstreetmap.org/assets/apple-touch-icon-60x60-cff74c9066d8e7fd08b29407712edbae5613cc9a4c03ee0398a89502a6a41d1f.png | images | 200 | 942 ms | 8.0 KB |
| https://www.openstreetmap.org/assets/application-3901b15b6f7d3d1a2230f955618d0bf378642e9ba2d6e87a67ac7c26875231cf.js | javascript | 200 | 941 ms | 370.3 KB |
| https://www.openstreetmap.org/assets/apple-touch-icon-57x57-0af2b52ac2b1a8cb0aba42f17aa901bfdedb9174bd978f838e3b3e1dd8602f52.png | images | 200 | 940 ms | 7.2 KB |
| https://www.openstreetmap.org/assets/turbo-c17cce38062be94687ab3e688cf14213be635ee2b55e63d9d5778659fab0c27b.js | javascript | 200 | 938 ms | 27.3 KB |
| https://www.openstreetmap.org/assets/index-23675379e2a622eb8c83071fa7056075bba0a77b506ae832c002dd66cecf95a2.js | javascript | 200 | 938 ms | 16.9 KB |
| https://www.openstreetmap.org/assets/i18n/en-e74144985e09be405fab7070256bc2d294633a989f292206d1eb4755ef7aeda7.js | javascript | 200 | 937 ms | 9.5 KB |
| https://www.openstreetmap.org/assets/banners/31day_2026-6686f3302802621c6c60358a4ddb742b42cbc72ddcd20cbfce089f82fb03f706.png | images | 200 | 936 ms | 24.3 KB |
| https://www.openstreetmap.org/assets/apple-touch-icon-120x120-c304991e604d1be82639709b96fb87f7b6b6688cc0d04d5f6141604259299648.png | images | 200 | 936 ms | 22.8 KB |
| https://www.openstreetmap.org/assets/osm_logo-cc7d94392992162133be3baa21a37eb84f19f9b91178f704005378fbeecabb4e.svg | images | 200 | 936 ms | 9.6 KB |
| https://www.openstreetmap.org/assets/favicon-194x194-79d3fb0152c735866e64b1d7535d504483cd13c2fad0131a6142bd9629d30de2.png | images | 200 | 935 ms | 44.7 KB |
| https://www.openstreetmap.org/assets/android-chrome-192x192-f970b9be3965dfda6ea9481b305c39b2ec794e296f802235e30d4671f0f896e1.png | images | 200 | 935 ms | 43.9 KB |
| https://www.openstreetmap.org/assets/screen-auto-ltr-d1fba5979d2f387276d738920086742b0f4116326208bcd5cb034f984def84cb.css | css | 200 | 935 ms | 43.8 KB |
| https://www.openstreetmap.org/assets/apple-touch-icon-180x180-ea6361d7ae5b3f08c6290652ad703fa239364cc09c84873044f3299845f24652.png | images | 200 | 935 ms | 42.1 KB |
| https://www.openstreetmap.org/assets/apple-touch-icon-152x152-af45dc979e972cab863517b2cb33a3dcf3e04e02a2eb2734c6f93edc21fa395d.png | images | 200 | 935 ms | 32.7 KB |
| https://www.openstreetmap.org/assets/apple-touch-icon-144x144-fbf20bdf9d2f7c1fe8eb85d7869a9bda285be88c93a39438150f5eb5955758ce.png | images | 200 | 935 ms | 30.1 KB |
| https://www.openstreetmap.org/assets/apple-touch-icon-114x114-20ba9df1a8f9b341040d661b7942b7b10288b9b4c4ce0663e10018958dc7f4a8.png | images | 200 | 935 ms | 21.1 KB |
| https://www.openstreetmap.org/assets/favicon-96x96-6ffbc38962fddb870f9577b76430a0ee4db5fb4eca485f850cd45436d7f3eb87.png | images | 200 | 935 ms | 15.4 KB |
| https://www.openstreetmap.org/assets/leaflet-all-d3e8505f47e0f0615d3daf2619f2267c086cbe9e17e276f393ee686dca54e0d3.css | css | 200 | 935 ms | 2.8 KB |
| https://www.openstreetmap.org/assets/favicon-32x32-99b88fcadeef736889823c8a886b89d8cada9d4423a49a27de29bacc0a6bebd1.png | images | 200 | 935 ms | 2.6 KB |
| https://www.openstreetmap.org/assets/favicon-16x16-474476c1b2381628a81361a9e2bf04b936d21f77c59e84b48c6c69ea376fb6cf.png | images | 200 | 935 ms | 861 B |
| https://www.openstreetmap.org/assets/manifest-97cb57bafa7f7f002cc5fe5532b856c4246eef5cbbd21c78b4c6bc2ffa46747a.json | other | 200 | 935 ms | 605 B |
| https://www.openstreetmap.org/assets/print-ltr-97dee1ca487394c852f28c2906a930316ab6d2cacf7f73e47c1c31fad8919051.css | css | 200 | 935 ms | 390 B |
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