Network Port
DNS
Port 53
Well-known service: DNS
Total Hosts
1,943,299
last 90 d
Countries
12
distinct
Top Software
—
from banners
CVE Hits
—
NVD feed pending
Service Detail
Port
53
Protocol
TCP / UDP
Service
DNS
IANA Reserved
—
Common Risk
—
Top Software on this Port
No banners yet
banner-sweep hasn't fingerprinted a host on this port yet.
Top Countries
Top ASNs
| ASN | Name | IPs |
|---|---|---|
| AS396982 | Google Cloud | 40,335 |
| AS4766 | KT Corporation (Korea Telecom) | 29,439 |
| AS19551 | Thales/Imperva | 10,923 |
| AS37963 | Alibaba (China) | 10,914 |
| AS16276 | OVHcloud | 10,179 |
| AS46606 | Endurance International Group, Inc | 7,101 |
| AS197207 | Mobile Communication Company of Iran | 5,477 |
| AS13335 | Cloudflare | 5,345 |
| AS24940 | Hetzner Online | 4,718 |
| AS9488 | — | 4,285 |
| AS4230 | Claro | 4,163 |
| AS1715 | — | 4,098 |
Recently Seen on Port 53
Hosts most recently observed with this port open in our scan sweep.
CVE Matches
No version-matched CVEs
No published CVE exactly matches a software version seen on this port. Banners often omit versions, which limits precise matching.