Network & DNS100% In-BrowserPort Checker
Port Scanner & Service Checker
Inspect common web and server ports (80, 443, 21, 22, 25, 8080) for reachability and exposed services.
Real-time processing·No server uploads·Zero telemetry
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How to Use Port Scanner & Service Checker
01
Enter host or domain name.
02
Select port preset (Common Web, Email, Database, or Custom Port).
03
Review open/filtered status response.
Privacy Guarantee
Port Scanner & Service Checker runs 100% client-side in your web browser. Your data, passwords, keys, and files are processed using the Web Crypto API and never transmitted to any server. Zero telemetry, zero storage, zero cloud processing.
Frequently Asked Questions
Why should unnecessary ports be closed?
Unused open ports increase attack surface by exposing internal daemons and services to remote exploitation.
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