Resolved HTTP/3 checkbox missing after update to Plesk Obsidian 18.0.71

[Ankebut]

Server operating system version

Ubuntu 24.04.2 LTS

Plesk version and microupdate number

Plesk Obsidian 18.0.71

Dear Plesk Team,

According to the changelog for Plesk Obsidian 18.0.71 (released on 8 July 2025), it should now be possible to enable or disable HTTP/3 on a per-domain basis via a checkbox located on the domain’s “Apache & nginx” settings page.

“The ‘HTTP/3 support’ checkbox can be found on any domain’s ‘Apache & nginx’ page.”

After updating to this version, I am unable to find the mentioned checkbox on any of my domains.

I have already verified that:

• HTTP/3 is enabled at the server level (verified in nginx config)
• The domains are correctly configured and accessible
• Caching is cleared and the interface reloaded

I’ve attached a screenshot of the expected settings page where the checkbox should appear.

Could you please clarify whether this might be a bug or if there are additional requirements or conditions that must be met for the HTTP/3 checkbox to be visible?

Thank you in advance for your support!

Best regards,

 

[scsa20]

I'm able to see it just fine, make sure you're using Nginx and clear your browser cache (or use another browser or private window).

 

[Ankebut]

Ja, ich verwende Nginx und habe den Browser-Cache geleert. Ich habe auch das Ignition-Konto verwendet, aber ich sehe immer noch nichts.

 

[Sebahat.hadzhi]

@Ankebut , I am unable to replicate the issue on a test Ubuntu 24.04 environment. Just to be certain, could you please run the following command and let us know what the output is:

plesk bin http3_pref --status

 

[brother4]

I have the checkbox as well.

 

[Ankebut]

@Ankebut, ich kann das Problem in einer Testumgebung mit Ubuntu 24.04 nicht reproduzieren. Um sicherzugehen, könnten Sie bitte den folgenden Befehl ausführen und uns die Ausgabe mitteilen:

root@srv2 / # plesk bin http3_pref --status
HTTP/3 ist für nginx deaktiviert

 

[brother4]

plesk bin http3_pref --enable -nginx

(Plesk for Linux) HTTP/3 Support in Plesk

HTTP/3 is the third major version of the Hypertext Transfer Protocol (HTTP) used to exchange information on the World...

docs.plesk.com

 

[UHolthausen]

Hello

uncheck the box below nginx settings, then http3 should run.
dekativiere das Häkchen unterhalb nginx settings, danach sollte dann http3 laufen.

 

[Ankebut]

plesk bin http3_pref --enable -nginx

(Plesk for Linux) HTTP/3 Support in Plesk

HTTP/3 is the third major version of the Hypertext Transfer Protocol (HTTP) used to exchange information on the World...

docs.plesk.com

After running this command, it became visible.