Port Checker
Attempt a short TCP connection to a public host and port. Private and local destinations are blocked.
Ready
How this measurement works
MyNetSpeed reports measurements that were actually observed by the browser or application server. It does not replace an ISP diagnostic or claim that browser HTTP requests are ICMP packets. Run several samples and compare Wi-Fi with Ethernet before drawing conclusions.
Frequently asked questions
Does a closed result prove a firewall problem?
No. The service may be stopped, filtered, rate limited or unreachable from the MyNetSpeed server.
Can this scan private networks?
No. Local, private, link-local and other unsafe destinations are rejected to prevent SSRF abuse.
Method reviewed August 14, 2026 · Read the measurement methodology