I am sure that, I have blocked the use of Opera Turbo in the settings.
The first time, opera constantly showed pop-up messages with suggestion to activate this feature. And then they disappeared, later, after one of auto updates, Opera has activated it again.
Now I disabled it again, but I want to ban for the future their servers, that they use for this function.
What domains are they using for this feature ?
Opera Turbo is using global-turbo-1.opera-mini.net
easily findable through search engines.
Two notes:
Blocking the domain name will not solve your issue, if it's a setting bug on the side of the browser. The domain blocked, the setting in place and then your requests are going to a dead end. I'm trying to check in the Opera bug report if there is any information about your specific configuration.