a friend of mine had pointed out to me, that the host of the forum "www.xcore.com" is not resolvable from many DNS servers. I was surprised about his observation and had therefore tried a variety of public DNS servers. None of my tested DNS servers could resolve the url. I tested following public dns servers with the command "dig @<dnsserver> www.xcore.com" :
- 8.8.8.8
- 8.8.4.4
- 9.9.9.9
- 1.1.1.1
- dns2.digitalcourage.de
- 91.239.100.100
- fdns1.dismail.de
- dnsforge.de