Port Scanner
Check which common ports are open on any server.
🚪 Port Scanner
Check which common ports are open on any host.
Waiting…
⚠️ Disclaimer
This tool is intended for scanning your own servers. Scanning servers without authorization may violate local laws.
Ports checked: 21 (FTP), 22 (SSH), 23 (Telnet), 25 (SMTP), 53 (DNS), 80 (HTTP), 110 (POP3), 143 (IMAP), 443 (HTTPS), 3306 (MySQL), 3389 (RDP), 6379 (Redis), 8080 (HTTP-Alt).
📖 How to Use
Port scanning reveals which services are exposed to the internet.
How to use:
- Enter a domain or IP
- Click "Scan"
- Wait up to 15 seconds
Common ports:
- 21 — FTP
- 22 — SSH
- 80 — HTTP
- 443 — HTTPS
- 3306 — MySQL
- 3389 — RDP
⚠️ Disclaimer: Only scan servers you own. Scanning servers without permission may violate laws.
❓ Frequently Asked Questions
Is port scanning legal?▾
Scanning your own server is legal. Scanning others without authorization may violate cybersecurity laws. Use responsibly.
Will the target know it was scanned?▾
Yes, the target server logs the connection source. Do not scan servers you do not own.
Does an open port mean insecure?▾
No. Ports 80 and 443 must be open for a website. But 3306 (MySQL) and 3389 (RDP) should not be exposed.
Why is it slow?▾
Each port has a 1.5-second timeout. 13 ports can take up to 15 seconds.
Does it support UDP scanning?▾
No. Only TCP. UDP scanning is more complex and unreliable online.
What if the result is inaccurate?▾
Firewalls or network jitter may cause false negatives. Try again in a moment.