Please let me know if there is a better community to post to. This one seems like a good place to start.
I have a very short character ICU domain registered and it was working for months. Without changes to DNS or anything else, it suddenly stopped working. I found out that no DNS records were resolved anymore. It is not that they are invalid. They are non-existant on any DNS servers. According to dnschecker.org's DNS lookup for ALL records, there no records at all. Same with using dig, which just shows an A record with no value.
I use my own nameservers and all of my other domains work fine. I have not changed anything on my end either. Still, I switched to Namecheap's default name servers to see if that would resolve the issue. No change.
I contacted Namecheap few about a month ago. They opened a ticket for me with a High priority. They just a couple times now, saying they are still monitoring the issue but don't have an answer yet.
Is anyone else experiencing something similar? Any ideas what may be going on?
In case anyone stumbles across this, the problem was that the entity that manages .icu domains received an abuse report and suspended my domain.
This is strange because I only use the domain for personal experimentation and none of that is just for static websites. DNS records for mail are properly configured like all of my other domains.
I asked Namecheap what the reason was. They said none was provided and it may take some time to get a reply back upon requesting the info. I asked them to put in a request for the reason.
My guess is that I was just in a massive list of domains that someone started reporting. or maybe someone was trying to get my domain taken out so they could take it for themself.