rus.uni-stuttgart.de has no A records.
rus.uni-stuttgart.de has no AAAA records.
Apex domains cannot have CNAME records.
Microsoft
Domain verification
MS=AD20F3D3FD579B337938ACFC7D5BF7423109365F
Zone apex
Start of authority
Email
Serial
2026022005
Refresh
1h
Retry
15m
Expire
14d
Negative cache TTL
1h