A worked example, rendered from real sample data. Sign in to run the tool on your own input.
scanme.nmap.org
22,80,443,3306,5432,6379,8080═══ What this tool did ═══
✗ No packets were sent and no port was probed. This page runs offline and makes no outbound network calls. — it cannot scan anything.
ℹ It builds the exact nmap / nc / PowerShell commands for you to run, and explains every well-known port in the range you gave.
⚠ Scan only hosts you own or have written authorisation to test. Unauthorised port scanning is a criminal offence in many jurisdictions.
═══ Target ═══
Host: scanme.nmap.org
Ports requested: 22,80,443,3306,5432,6379,8080
Ports in range: 7
Known services in that range: 7
═══ Commands to run ═══
nmap -Pn -p 22,80,443,3306,5432,6379,8080 scanme.nmap.org
nmap -Pn -sV -p 22,80,443,3306,5432,6379,8080 scanme.nmap.org identify the service behind each open port
nmap -Pn --top-ports 100 scanme.nmap.org the 100 ports that are open most often
nmap -Pn -p 22,80,443,3306,5432,6379,8080 -oG - scanme.nmap.org greppable output for scripting
nc -zv -w2 scanme.nmap.org 22 80 443 3306 5432 6379 8080 quick netcat sweep, no install needed
for p in 22 80 443 3306 5432 6379 8080; do (echo > /dev/tcp/scanme.nmap.org/$p) >/dev/null 2>&1 && echo "$p open"; done pure bash
Test-NetConnection -ComputerName scanme.nmap.org -Port 443 PowerShell
ss -lntup what is listening on THIS machine, no scan needed
ℹ Paste the output of any of these back into this box and every port will be annotated with its service and risk.
═══ Well-known ports in 22,80,443,3306,5432,6379,8080 (7 shown) ═══
⚠ 22/TCP SSH: Secure Shell — encrypted re
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Build nmap/nc/PowerShell scan commands for a host and port range, and annotate scanner output you paste back (nothing is scanned here). Part of the DevTools Surf developer suite. Browse more tools in the Networking collection.