dotnet.microsoft.com/en-us/apps/aspnet/signalr speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 13:30 UTC. Grade A (91/100), with the screenshots, the timings and the fixes that matter.

https://dotnet.microsoft.com/en-us/apps/aspnet/signalr

20 October 2026 at 13:30 UTC · Free test · report pt_aa9de657cfab
Grade
A
91/100
Performance97/100
Structure82/100

11 audit(s) passed, 5 need work

First byte (TTFB)306 msmeasured from this server
Fully loaded1.53 sfirst byte + slowest asset
Requests26document + assets
Page weight444.4 KBcompressed transfer
HTML document90.1 KBgzip
ProtocolHTTP/3server not sent
Third-party354.3 KBother hosts

Where the first byte went

  • DNS lookup 56 ms 18%
  • TCP connect 38 ms 12%
  • Server wait 212 ms 69%

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

First bytefaster than 73% of 4,999 pages tested here306 ms against a median of 449 ms
Page weightlighter than 62% of 4,999 pages tested here444.4 KB against a median of 650.5 KB
Fully loadedfaster than 68% of 4,999 pages tested here1.53 s against a median of 1.84 s
Requestssends more requests than 100% of 4,999 pages tested here26 against a median of 26

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 306 ms. That is workable, and the cheapest win left is caching or a warmer connection.
  • The page transfers 444.4 KB over 26 request(s). Css files are 51% of it, so split the stylesheet so the first screen does not download the whole site.
  • The HTML itself arrives gzip-compressed.
  • It runs over HTTP/3, so the assets share a connection instead of opening one each.
  • 80% 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 1.00 s, inside the 2.5 s Google calls good.

Fix first: Compress text responses - Turn on brotli (preferred) or gzip for text/css, javascript and text/html in the web server. This is the cheapest win available on almost any site.

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.

Mobile screenshot of dotnet.microsoft.com
Mobile 390 × 844 · 57.3 KB · page is 4845 px tall

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.

Largest contentful paint1.00 sgood is under 2.5 s
Cumulative layout shift0.000under 0.1 is stable
Total blocking timenone over 50 mslong tasks during load
First contentful paint904 msfirst content on screen
Browser page weight1.13 MB37 request(s), scripts included
Failed requests1blocked or unreachable
Largest contentful paint1.00 s
Goodgood under 2.5 s, poor over 4 s
Cumulative layout shift0.000
Goodgood under 0.1, poor over 0.25
Total blocking timenone over 50 ms
Goodgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Css 1 request
225.8 KB 51%
Javascript 3 requests
128.5 KB 29%

Transfer size, compressed as sent. 26 request(s) in total, 444.4 KB across all of them.

Top issues

Compress text responses

high impact

1 text response(s) of 10 KB or more are sent uncompressed, and the document itself is not compressed. That is 51.5 KB of compressible text.

Fix: Turn on brotli (preferred) or gzip for text/css, javascript and text/html in the web server. This is the cheapest win available on almost any site.

Render-blocking resources

high impact

5 render-blocking resource(s) in the document head (2 script(s), 3 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 impact

2 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.

Third-party weight

medium impact

4 third-party host(s) serve 354.3 KB of this page. Each one is another DNS lookup, TLS handshake and point of failure you do not control.

Fix: Self-host the libraries you can, drop the tags you cannot justify, and preconnect the ones you keep.

Avoid extra redirects

medium impact

2 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

JAVASCRIPTwcpstatic.microsoft.com/mscc/lib/v2/wcp-consent.js
1.22 s
HTMLdotnet.microsoft.com/en-us/apps/aspnet/signalr/static/js/cd…
1.21 s
HTMLdotnet.microsoft.com/en-us/apps/aspnet/signalr/static/js/ge…
1.19 s
HTMLdotnet.microsoft.com/en-us/apps/aspnet/signalr/static/js/pr…
1.14 s
HTMLdotnet.microsoft.com/en-us/apps/aspnet/signalr/static/fonts…
1.13 s
HTMLdotnet.microsoft.com/en-us/apps/aspnet/signalr/static/fonts…
1.13 s
HTMLdotnet.microsoft.com/en-us/apps/aspnet/signalr/static/fonts…
1.13 s
HTMLdotnet.microsoft.com/en-us/apps/aspnet/signalr/static/fonts…
1.12 s
JAVASCRIPTjs.monitor.azure.com/scripts/c/ms.analytics-web-4.min.js
1.12 s
JAVASCRIPTuhf.microsoft.com/statics/20261015.09.43/js/entry.js
1.12 s

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

RequestTypeStatusTimeSize
https://wcpstatic.microsoft.com/mscc/lib/v2/wcp-consent.js 3rd partyjavascript2001.22 s51.5 KB
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/js/cda-tracker.min.js?v=SyYaSyIMxBKYbravFr4rQISs39K6Wu_jyNMP-TEkBgEhtml4041.21 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/js/general.min.js?v=Cq_4mM88xe4N02IzVfAAJ81LtomYluaOm_tYblPRB3Ehtml4041.19 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/js/prism.min.js?v=aaSPC8GWQMXTqIzP4P7pJL_PXyrlQ7T7TbUcKxoA1NQhtml4041.14 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/fonts/space-grotesk-v12-latin-700.woff2html4041.13 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/fonts/open-sans-v34-latin-regular.woffhtml4041.13 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/fonts/open-sans-v34-latin-600.woff2html4041.13 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/fonts/open-sans-v34-latin-600.woffhtml4041.12 s0 B
https://js.monitor.azure.com/scripts/c/ms.analytics-web-4.min.js 3rd partyjavascript2001.12 s67.9 KB
https://uhf.microsoft.com/statics/20261015.09.43/js/entry.js 3rd partyjavascript2001.12 s9.0 KB
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/js/footer.min.js?v=RVslb4HZMiuSbGsDzcAsIhvWLZgw2HmQR-fsPOHkfMQhtml4041.12 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/js/ocv-feedback.min.js?v=30q-_Vlhg2MGlJGEWy3e88xMj5D13f4ZBycQW2xO_Sohtml4041.12 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/fonts/space-grotesk-v12-latin-700.woffhtml4041.12 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/js/cookie-consent.min.js?v=Of4rd7AebCzzSEEQNiLANe0K3tVO6JzyJKwPgm9k5ZIhtml4041.08 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/js/main.min.js?v=0N8nfJoFs1qTvKY8QfCz8dqG_MioHBN9ZKO4nMN03_Qhtml4041.07 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/css/bootstrap-custom.min.css?v=hMF7B6rQGDusUx6fUS4DmcjrsmzR9eXFzUu8vvdO13ghtml4041.07 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/js/theme-toggle.min.js?v=jUj2K3JEtBELccacJs-D-6SAHzo_UvFz-xZarw77Xyohtml4041.07 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/js/culture-selector.min.js?v=gq4w3vlrcyGCrtwdOoRDw0Tkqlb5Hrthwe0UhgszK3Qhtml4041.07 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/css/prism-custom.min.css?v=DOog4fNCgclgMVTirVLZO_aa8LAB-hgl3wDrE2fS0lshtml4041.05 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/fonts/open-sans-v34-latin-regular.woff2html4041.05 s0 B
https://microsoft.com/ 3rd partyhtml3011.05 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/apple-touch-icon.pnghtml4041.03 s0 B
https://uhf.microsoft.com/statics/20261015.09.43/css/style-PF2pqjN1.css 3rd partycss2001.03 s225.8 KB
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/fonts/open-sans-v34-latin-700.woffhtml4041.03 s0 B
https://dotnet.microsoft.com/en-us/apps/aspnet/signalr/static/fonts/open-sans-v34-latin-700.woff2html4041.03 s0 B
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