Hi [Customer Name],
I checked the status of our Cloudflare nameservers and confirmed they are up and responding.
Since you reported that example.com is unreachable from some networks, I investigated the issue and found the following:
Your DNS records are correctly configured and resolving as expected.
Your nameservers are properly set up to point to Cloudflare.
Global DNS checks returned the expected responses.
Given that the site is accessible from some networks but not others, this suggests a possible connectivity issue between those networks and the Cloudflare servers. I recommend reaching out to the administrators of the affected networks to investigate further.
If you have a machine available on one of the affected networks, I’d be happy to assist with a more detailed diagnostic using a traceroute.
In the future, if you have concerns about Cloudflare’s availability, you can also check cloudflarestatus for current status updates. If you have any further questions or concerns, please feel free to reach out.
Thought process used
Nslookup, https://www.cloudflarestatus.com, validatation of NS settins.