Port 53DNS

Domain Name System

Search port:53

About Port 53

DNS translates human-readable domain names into IP addresses. Port 53 handles both TCP and UDP DNS queries, with UDP being used for standard queries and TCP for zone transfers and large responses.

Security NotesOpen DNS resolvers can be exploited for DNS amplification DDoS attacks. Implement rate limiting and restrict recursive queries to authorized clients only.

Total Hosts

54.9K

TLS Encrypted

0.0%

Vulnerable Hosts

7.4K

Countries

10+
Top Services
http31,761
ssh9,409
mysql2,500
ssl2,405
http-proxy1,869
telnet1,196
home-automation819
ftp758
nas507
vnc483
Top Countries
US United States6,079
HK Hong Kong4,112
CN China3,641
DE Germany2,393
NL Netherlands1,826
MY Malaysia1,579
IT Italy1,196
GB United Kingdom1,176
ES Spain1,161
JP Japan1,065
Top Products
OpenSSH9,091
Microsoft HTTPAPI httpd6,813
Nginx4,119
MySQL2,252
HAProxy http proxy1,734
nginx1,541
HTTP1,300
Home Assistant819
Synology DSM505
OpenResty490
Related Ports
Port 853Port 5353