- Plesk for Windows
Does Plesk support HTTP/2 on Windows Server?
How to enable HTTP/2 in Plesk for Windows Server?
HTTP/2 support was introduced in Windows Server 2016 (IIS 10.0) and is enabled by default. No additional actions are required from Plesk side. Previous Windows Server releases (IIS 8.5 and earlier) do not support HTTP/2.
To verify HTTP/2:
In a web-browser, open web console ( F12 ) and switch to the Network tab.
Open your website over HTTPS and check the Protocol column.