Different DNS caches, old A or AAAA records, proxies, or local networks can return different results. Check the intended DNS zone and both address families before changing the server. DNS changes can remain cached until their prior TTL expires.
Why does a domain work for some visitors but not others?
Different DNS caches, old A or AAAA records, proxies, or local networks can return different results. Check the intended DNS zone and both address families before changing the server. DNS changes can remain cached until their prior TTL expires.