Port check
Test common ports on your domain's public IP address.
·
What does the port check test?
Port check probes common TCP ports on your domain’s public IP — useful for confirming whether HTTPS, mail submission or remote-access services are reachable from the internet. Closed or filtered ports are often intentional firewall policy, not an outage.
When is an open port a problem?
Unexpected open management ports on a business firewall deserve attention. Use the result as a conversation starter with your IT partner rather than as a full vulnerability assessment.
Guides
Related guides
Network
VLANs explained for small business
Network
Guest Wi‑Fi security for offices
Network
Secure remote access for hybrid teams
Need help fixing DNS, email or security?
Melbourne IT support for websites, Microsoft 365 and cyber security.
Talk to us