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Open Port
Checker
Test whether a TCP port is open or closed on any host from Cloudflare's edge network.
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Check
Use My IP
Toggle ports to select — single ports or ranges. Hit
Scan Selected
to run.
Clear all
Selected:
Scan Selected
General / Web
Select All
FTP 21
SSH 22
Telnet 23
SMTP 25
DNS 53
HTTP 80
POP3 110
IMAP 143
HTTPS 443
SMB 445
SMTP TLS 587
IMAP SSL 993
POP3 SSL 995
HTTP Alt 8080
HTTPS Alt 8443
Remote Access & VPN
Select All
RDP 3389
VNC 5900
VNC Range 5901–5910
TeamViewer 5938
WinRM HTTP 5985
WinRM HTTPS 5986
PPTP VPN 1723
OpenVPN 1194
WireGuard 51820
IPSec NAT-T 4500
IKE/IPSec 500
Databases
Select All
MSSQL 1433
MSSQL Browser 1434
MySQL 3306
PostgreSQL 5432
Oracle DB 1521
Redis 6379
MongoDB 27017
Elasticsearch 9200
CouchDB 5984
Neo4j 7474
Infrastructure & Management
Select All
DNS 53
DHCP 67
NTP 123
SNMP 161
SNMP Trap 162
LDAP 389
LDAPS 636
Kerberos 88
RPC/DCOM 135
NetBIOS 139
SMB 445
Global Catalog 3268
Print/JetDirect 9100
VoIP & Communications
Select All
SIP 5060
SIP TLS 5061
H.323 1720
MGCP 2427
RTP 16384–16394
RTP Alt 10000–10100
SRTP 5004
IAX2 4569
Cisco SCCP 2000
Surveillance / NVR / IP Camera
Select All
RTSP 554
RTMP 1935
Hikvision SDK 5000–5002
Hikvision SDK 8000–8003
Hikvision Stream 8200
Avigilon 6000–6002
Digital Watchdog 7000–7005
RTSP Alt 7070–7075
Geovision 7100–7105
NVR HTTPS 7443
RTSP Alt 8554–8560
Bosch 8880
Synology 9000–9002
Provision ISR 9527
NVR Mgmt 9999
XMEye 34567–34569
Dahua 37777–37780
Scan Mode
Single Port
Common Ports (28)
Port Range
Well-Known (1–1024)
—
Max 500 ports per scan
Testing port…
Host
Port
Status
Checked At
All
Open Only
Closed Only
Port
Service
Status
RTT
SMS Text
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