For months or years, I have not been able to to reach notepad-plus-plus.org (Notepad++) application update check or web browser,and I've come across random other sites too that I can't remember. I even opened a ticket and was dismissed because the section: 'Servers~Check Route' shows connected. I don't know if it is really representative of user-side. Here's what I have done:
Checked DNS blocking settings
Made sure to regenerate config files
Tried different european servers and USA servers.
Tried on multiple iOS devices
AirVPN resolved IP for Notepad++ seems to be owned by AirVPNs service provider or Datacenter???
Windows:
Manually tried various DNS servers manually on client (1.1.1.1, 8.8.8.8, 9.9.9.9, dnscrypt,....)
Tried adding the valid Notepad++ IP address to the Hosts file
I think that might be all of it from what I can remember ATM
All these address reply to ping fine...