A simple DNS lookup tool
Domain 213.133.100.102
Type PTR
Server Cloudflare
Duration 543 ms
Results
{
  "status": "NOERROR",
  "from": "1.1.1.1",
  "answer": [
    {
      "type": "PTR",
      "name": "ns1.your-server.de",
      "ttl": 86400
    }
  ]
}
This Lookup
Realtime Lookup