Common query
- Input
- UDP/53
- Expected output
- Consulta DNS tradicional
Most common day-to-day case.
port 53
Port 53 is the classic DNS reference and helps explain when queries use UDP or TCP.
Most common day-to-day case.
More specific scenario.
Deliberate decision: unauthorized port scanning is an abuse vector and has legal implications in several countries. We prefer a clear, safe reference.
Both. UDP is more common; TCP appears in zone transfers and specific responses.
No. DNS over HTTPS usually uses 443.
Name resolution. UDP for normal queries, TCP for zone transfers and large answers. DoT (853) and DoH (443) encrypt.
Everything runs locally in your browser from an embedded catalog. This tool does not connect to IPs or ports, it is not a scanner.