One suggest: the nip05 should displayed different when failed connecting to the server.
Such as made the nip05 address becoming gray or others.
I see your nip05 is not checked because I can't visit the server and it gets blocked in China.
Discussion
It should be yellow if trying to connect and red if it cannot resolve. Do you see it or just blue?
When connecting to my VPN it's blue
When I'm using Chinese net it's red.
I checked your website and I saw it was blocked.
So that's why I suggested this.
When nip05 is successful checking it becomes blue and connecting is yellow.
failed to check can be red and fail to connect with the server should be a different color to display I suggest.
one extra:
Where is the nip05?
Blue