: Everyone should see the updated record change somewhere between instantly and the relevant TTL value set on the record. But in practice they don't and you experience what you are seeing. A

@Candy875

Everyone should see the updated record change somewhere between instantly and the relevant TTL value set on the record. But in practice they don't and you experience what you are seeing.

A lot of ISP's don't honour the Time to Live TTL value and hold on to the old record for longer, some badly configured caches may not see the change if the TTL value is very low as they ignore TTL's below a certain value.

I have also seen a DNS change come into effect on a machine then a couple of hours later it reverts back again and flip flops for a while like this. Very confusing.

It might be worthwhile flushing your machines DNS. This can sometimes help speed up the change

ipconfig /flushdns

if you are on windows.

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