Check if any TCP port is open

Enter any domain or IP address and select a port by category. Our server performs a real TCP handshake and returns live open/closed/filtered results instantly.

✓ Real TCP scan ✓ External server view ✓ CCTV presets ✓ Free & instant
Target domain or IP & port
Select port by category

Click a port to select it — one at a time

Understanding your results
What is a port?

A port is a numbered endpoint on a server. Each service listens on a specific port — web servers on 80/443, SSH on 22, RTSP cameras on 554, databases on 3306.

Open port

The server accepted our TCP connection. The service is running and reachable from the internet. Response time shows network latency in milliseconds.

Closed & Filtered

Closed — OS rejected connection instantly, nothing listening. Filtered — firewall silently dropped the packet with no response.

Scan accuracy

Results reflect the view from our VPS server — not your local machine. CDN or proxy layers like Cloudflare may mask the real backend port status.

Common ports reference
Port Proto Service & description Category
21 TCP FTP — File Transfer Protocol File
22 TCP SSH — Secure Shell — remote access Remote
25 TCP SMTP — Mail sending Mail
53 TCP DNS — Domain Name System Network
80 TCP HTTP — Hypertext Transfer Protocol Web
110 TCP POP3 — Post Office Protocol v3 Mail
143 TCP IMAP — Internet Message Access Protocol Mail
443 TCP HTTPS — Secure HTTP / SSL-TLS Web
445 TCP SMB — Windows File Sharing Computer
554 TCP RTSP — Real Time Streaming (IP cameras) CCTV
587 TCP SMTP TLS — Secure mail submission Mail
993 TCP IMAPS — Secure IMAP Mail
995 TCP POP3S — Secure POP3 Mail
1883 TCP MQTT — IoT messaging protocol IoT
1880 TCP Node-RED — Node-RED flow UI DIY Elec
3000 TCP Node/React — Dev server (Node / React) Web
3306 TCP MySQL — MySQL database Database
3389 TCP RDP — Remote Desktop Protocol Computer
5432 TCP PostgreSQL — PostgreSQL database Database
5900 TCP VNC — Virtual Network Computing Computer
6379 TCP Redis — Redis in-memory store Database
7777 TCP ARK/Terraria — ARK / Terraria game server Gaming
8000 TCP DVR HTTP — Hikvision / Dahua DVR panel CCTV
8080 TCP Alt HTTP — Alternate HTTP / NVR panel Web
8086 TCP InfluxDB — InfluxDB time-series DB IoT
8123 TCP HomeAssist — Home Assistant smart home IoT
8443 TCP Alt HTTPS — Alternate HTTPS port Web
8888 TCP Jupyter — Jupyter Notebook / dev DIY Elec
9000 TCP Hikvision — Hikvision SDK port CCTV
19132 TCP MCPE — Minecraft Bedrock Edition Gaming
25565 TCP Minecraft — Minecraft Java Edition server Gaming
27015 TCP Steam/CS2 — Steam / Counter-Strike 2 Gaming
34567 TCP XMEye DVR — XMEye / generic DVR TCP CCTV
37777 TCP Dahua TCP — Dahua camera TCP protocol CCTV
64090 TCP Valheim — Valheim game server Gaming
How to use this tool
1
Enter a domain or IP — type any public hostname like example.com or a direct IP address. Your WAN IP is auto-detected.
2
Pick a category — choose Web, CCTV, Gaming, IoT etc. and click a port pill to select it.
3
Click Scan port — our server does a real TCP handshake from an external location and returns live results.
4
Read the results — open ports show latency in ms. Closed/filtered ports timed out or were rejected by a firewall.