PageSpeed - http/1.1

What is the name of the domain?

meuxbox.com.br

What is the issue you’re encountering

I checked on Pagespeed and it shows that the modern version is http:/1.1 I activated the functions in Cloudflare and even so it shows as http:1.1 it recommends version 2 or 3.

Screenshot of the error

Don’t worry about it. Cloudflare just serves HTTP/1.1 and 1.2 if your browser don’t supports newer versions. If it supports, it will get the HTTP/2.0 or HTTP/3.0 connections, including bots if they supports the newer versions.


sardelich
Apr 30, 2025

well…first feedback I guess :smiley: my site is fully http2 and http3 supported via cloudflare but I get modern http error and it seems that all page elements are loaded over http1.1 so its either lighthouse bug with new metrics or some weird cloudflare issue. but testing the webpage gives it a green on http2 :confused:

3 replies

@PetrDedic

PetrDedic May 1, 2025

Same issue with my site, but assets are served through Vercel DNS. For some reason, everything is shown as served through http/1.1, but I have checked Network tab and under Protocol column, everything is h2 or h3.

@connorjclark

connorjclark May 1, 2025

Maintainer Author

Thanks for the heads-up.

This issue is limited to PageSpeed Insights - we actually have some infrastructure limitations regarding accurate reporting of h1/h2/h3 for PSI. We had worked around that by disabling the original http2 audit, but didn’t remember to do that for the new one.

So: you can ignore this insight when coming from PSI. I’ll try to push a change soon to disable the insight audit in PSI until we can resolve the underlying issue.

1 Like

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