#1 Where are you seeing that:
a) In a web client/web browser - settings
b) In a web daemon/web server - settings
#2 Even better, the exact name and version of the program of where you are seeing that.
a) FireFox ver 63
b) Apache HTTP Server ver 2.4.37
#3 If using a web client/web browser connected to a web daemon/web server, what web 2.0 software?
Note I am guessing the right term.
For example using Firefox ver 63 while connected to
(which is running Apache HTTP Server ver 2.4.37) with phpBB version 3.2.3
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