Port Scanner

About Port Scanner

Port Scanner checks whether common network ports (e.g. 80 HTTP, 443 HTTPS, 22 SSH, 3306 MySQL, 25 SMTP) on a host are open, closed, or filtered. Use it to verify that a service is actually listening and reachable from outside after you configure it, or to audit your own server's attack surface. Only scan hosts you own or have permission to scan - scanning other people's systems may be illegal.

How to use

1. 1 Enter the target you want to check (a domain, IP address, or URL) in the field provided.
2. 2 Click the run button - the request is processed on Computing ID servers and the results are shown in the panel.
3. 3 Read the results; copy the parts you need, or change the input and run it again to compare.

Free tools from Computing ID

Port Scanner is one of dozens of network, security, and developer utilities provided free of charge by Computing ID (PT Intprism Computing Technology). Every tool can be used without creating an account or logging in. For tools that run entirely in the browser, your data is never sent to our servers; for tools that need to call a server (such as a DNS lookup or SSL check), only the target you enter is processed, and it is not stored. If you need infrastructure to run your own services, Computing ID also offers Linux and Windows VPS, cPanel hosting, email hosting, S3 Object Storage, WireGuard VPN, and domain registration, with data centers in Indonesia and Singapore and 24/7 technical support.