The result of the 'ping IP address' command can be relied?

[a cooperator]

Hi,
I was having an issue with the internet connection. Although I was connected well, and there was no yellow mark '!' shown on the connection network, I saw all websites didn't launch and I saw 'please check your dns connection'.
I have tried flushing the dns with 'ipconfg /flushdns' and even run 'ipconfig /renew'. But that made no difference. I tried turning off all my router and modem, and check the cables, but the same thing was still happening.
Thsu, I asked myself to try running the ping IP address to see what was going on, but the results was as follows in the first time

And then, run it again.

My questions are:
1- What was going on with my connection network. Note that I am connecting wirelessly to my own WiFi router. There are three devices are connected to my WiFi router, two smart phones, and one Windows 10 notebook. With all devices, I was seeing that issue.

2- What can 'ping...' be given to me? What can I should figure out from running 'ping'?

3- why do now whenever running 'ping tomshardware.com' I see 100% loss although the tomshardware is launching well, or otherwise, I couldn't post this post? So, I think we cannot rely on the results of 'ping' ?

 

[USAFRet]

Don't rely on a simple 'ping'.
The command you want to look at is tracert. (Trace Route)

This lists all the hops between your PC and wherever.
The only thing that you may have control over is the first hop, to your router.
That should be <1ms.
After that, it is outboard of your system and you cannot do anything about it.

For instance...

 

[Mike 80]

It may be a DNS problem...have you tried to use a different DNS IP address? Go to your NIC properties and under the IPv4 options, disable the DNS auto-configuration (by DHCP) and try the Google DNS IPs (8.8.8.8 and 8.8.4.4), check if with that configuration your computer will resolve the addresses faster.

 

[a cooperator]

Don't rely on a simple 'ping'.
The command you want to look at is tracert. (Trace Route)

This lists all the hops between your PC and wherever.
The only thing that you may have control over is the first hop, to your router.
That should be <1ms.
After that, it is outboard of your system and you cannot do anything about it.

For instance...

Thanks a lot,
'Trace' command will have a usage, and there are other many options which must be followed by it, which one should I select to know what is going on with my PC, and dns server?
For instance, tracert - d


Even I see the IP address of Outlook in your results screen shot is different than the IP address of Outlook in my results screen shot . Though the Outlook is the same website we both can access to wherever we are.
This is my results screen shot:

 

[bill001g]

Those delays look like a satellite connection. Most times I would ask if you were using satellite to your house but when I look these IP addresses up they come back to ISP in Yeman and Oman. I have little knowledge of ISP in that part of the world.

I could be many other things though. The delay is in your ISP equipment either that connects to your house or in the local office of the ISP.