What this ping test does
It's the classic ping command, run from our server instead of your computer. Enter a domain name or an IP address, and we resolve it, send an ICMP echo request and wait a few seconds for the reply. You see the raw output of the command, including the IP address that was pinged, the TTL and the round-trip time in milliseconds.
Pinging from outside is useful precisely because it's not your network. If a server answers when you ping it from the office but not from here, the problem is somewhere between the server and the rest of the internet: a routing issue, a firewall rule that only lets your office in, or an upstream provider having a bad day.
No reply doesn't always mean the server is down
Ping is the oldest and bluntest availability check, and a lot of infrastructure ignores it on purpose. Windows blocks incoming ICMP echo requests by default, AWS security groups drop them unless you add a rule, and many hosting providers and corporate firewalls filter ICMP entirely. A web server can be serving pages perfectly well while every ping times out.
So treat a failed ping as a reason to look closer. If the machine is meant to answer pings, check the firewall and whether the host is powered on and connected. If it isn't, check the actual service instead: the website status checker for a site, or the port checker for SSH, mail or a database.
Reading the round-trip time
The time= value is how long the packet took to get there and back. Within one region you'd expect a few milliseconds; across an ocean, 80 to 150 ms is normal, since light in fiber only travels so fast. A number far above what the distance explains points to congestion or an odd route, but one sample is noisy, so don't read too much into a single slow reply.
Where ping really earns its keep
Ping shines for devices that have no web page to check: routers, VPN gateways, NAS boxes, IP cameras, a Raspberry Pi with a public IP. A Ping monitor pings them every minute and lets you know as soon as one of them stops answering.