Looks ok to me:
dig ethervision.gtt.net@1.1.1.1 +short
208.77.65.23
I assume just cache. What did you try to query it? gtt.net uses Cloudflare but ethervision subdomain doesn’t.
Thank you for your follow-up on this topic.
I am using dig and nslookup to troubleshoot the DNS query resolution.
I have tried to separate workstations with different os to avoid any caching and so on. gtt.net works fine, but the subdomain is not resolvable via Cloudflare for me, this seems to affect only Cloudflare DNS.
I am located in Czechia.