Is your host reachable right now - and how fast does it respond from outside your network.
Does the host accept connections today?
Min, max, and average latency in milliseconds
Probed from our servers, like a real client
No account required · Free · Results in under 1s
Network reachability and latency in plain terms
When a server stops responding, users see timeouts and APIs fail - often minutes before your internal monitoring catches it from inside the same network.
A ping test checks reachability and measures response time from external servers. We use TCP connect probes when ICMP is blocked - the same practical answer as "is this host up?"
Run a free ping test during incidents or after deploys. Add hosts to TotalSiteControl uptime monitoring for automatic checks and alerts when response times spike or connections fail.
Free TotalSiteControl monitoring - email alerts, no credit card required.
Get notified the moment your server stops responding - before users report it.
Scheduled checks reveal slow periods and routing issues that a single ping can't show.
See past probe results and trends - useful for post-mortems and SLA reporting.
Instant results · No signup · Check anytime
Whether a host is reachable and how long TCP connections take from our servers - the same path a browser or API client would use.
Yes. Test any public hostname or IP instantly - no signup, no credit card, and no limit on one-off checks.
We use TCP connect probes when ICMP is blocked on the target. You still get a clear reachable or unreachable result plus response times.
You may be testing a blocked port, the wrong hostname, or a network that filters probes from outside. Try the exact hostname users visit.
Under 100 ms is typical for nearby hosts. Above 300 ms may indicate routing distance or network congestion.
Yes - enter any public IP such as 8.8.8.8 or a hostname such as yoursite.com.
Common causes include firewall rules, the service being down, wrong DNS, or the host being offline. Pair with our DNS Lookup to confirm the name resolves.
During incidents and after infrastructure changes. Uptime monitoring runs checks automatically and alerts on failure.