If I am reading this correctly – and I might not, it's been a long day – the issue is not directly with DE itself, but with nic.de.

Which doesn't necessarily make it much better.

And that's why it doesn't make it much better:

;; ANSWER SECTION:
de. 86400 IN NS a.nic.de.
de. 86400 IN NS f.nic.de.
de. 86400 IN NS l.de.net.
de. 86400 IN NS n.de.net.
de. 86400 IN NS s.de.net.
de. 86400 IN NS z.nic.de.

If nic.de. is down, nameservers in nic.de. are down. Which will cause issues for DE.

At this moment, please send #HugOps to folks at DENIC. They are dealing with a really bad and stressful situation and I am sure they are doing their best to resolve it as soon as possible.

#DNS #DENIC

DENIC's status page:
status.denic.de/

Screenshot below in case you're not able to load it (as I said, stuff is going to be intermittently failing).

#DNS #DENIC #DNSSEC #InfoSec #SysAdmin

Here's a thought:

The fact that people are experiencing issues with DE sites and asking if CloudFlare is down speaks volumes about the stability of DE ccTLD and the broader DNS compared to big cloud providers.

#DNS #InfoSec #SysAdmin