Did the domain dns server pointing towards the cpanel server..? If it is not,then probably you also need to create the subdomain at the place where the domain ns being pointed...eg:domain registrar dn

From the ResellerClub website ( https://blog.resellerclub.com/how-does-dns-work/ )

you said you checked the DNS records... how and where from?

My client gave me his cpanel hosting purchased from ResellerClub to upload his site. I created one subdomain, but after 48hrs of waiting, it's still not propagated. I have checked the DNS records, and

dns.sb

I often use 2600:: to test IPv6 connectivity, and I remember Google DNS was 2460:4860:4860::8888

Manual reverse DNS [PTR] management

* Updates to our anycast DNS over Tor setup that the VPN network uses. This is to increase the capacity and capability of the setup. VPN service is currently out of stock until the update is complete.

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possible to have Netplan on Debian, except that DNS server settings are ineffective.

Advanced DNS Management

One of the use-cases are what I mentioned. Not everyone wants to get a full-blown dedicated server to use as a router, some people want to keep things separated, or sometimes budget gets in the middle

provider is like a day, week in ms, then the new dns propogation will take enough time to reflect across the world. Also go to dns.google.com and refresh your particular domain's dns. So at least use

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Since you're the only person complaining that it's not working, I'm thinking this is more of a local issue for you than a LET issue. Perhaps you're using some problematic extension? Wacky DNS server

https://lists.dns-oarc.net/pipermail/dns-operations/2021-October/021388.html

Most free DNS has no API, which sucks.

Spin up 5 VPS servers in different locations and mount your own DNS cluster with PowerDNS. Rock-solid and definitely more reliable than any public service out there which will always be a target for a

+1, Namesilo free dns is garbage. Stay with cloudflare