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Ubify Core Engineering Team
SOFTWARE ENGINEERS & SYSTEMS ARCHITECTS
About This Tool
Servers and networked hardware listen on standard TCP ports to handle specialized communication protocols—such as port 80 for unencrypted HTTP, port 443 for encrypted HTTPS, port 22 for secure SSH terminal access, and database ports like 3306 (MySQL) or 5432 (PostgreSQL).
Because web browsers operate in a security sandbox that prohibits raw TCP socket calls or SYN packets from client-side JavaScript, direct external socket probing from a webpage is restricted. This tool evaluates standard public host service profiles and baseline protocol configurations. For example, testing public DNS servers like 8.8.8.8 maps standard service expectations (such as open web ports versus closed management ports) to assist with network documentation and firewall rule verification.
How to Use
- 1
Enter the target IPv4 address or hostname you want to evaluate (e.g. 8.8.8.8).
- 2
Click "Scan Ports" to inspect standard TCP service mappings.
- 3
Review port statuses (open, closed, or filtered) across primary communication ports.
- 4
Check the host profile note regarding browser-based network scanning constraints.
Frequently Asked Questions
Can a browser perform raw TCP SYN port scans?
No. Browser security policies prevent JavaScript from sending raw TCP SYN packets or opening low-level network sockets; this utility displays baseline protocol service profiles.
What are common TCP ports checked during network audits?
Standard ports include 80 (HTTP), 443 (HTTPS), 22 (SSH), 21 (FTP), 3306 (MySQL), and 5432 (PostgreSQL).
Does this tool route network traffic through third-party proxy relays?
No. All operations run directly in your local browser runtime without external proxy relays.