On Thu, 23 Jan 2020 13:48:58 +0000
RW wrote:

> These two are supplied by the ltd.uk nameservers, but if you do an NS
> lookup on one of these you get a third server, dns3.fluent.ltd.uk with
> the IP address 195.78.94.20. 

I'm curious as to what's actually going on here. If I use 

dig ns fluent.ltd.uk @<cache-name>

some caches give the 2 servers supplied by Nominet, others give the 3
servers from  dns[1-3].fluent.ltd.uk (an extra round-trip). 

If I look on Google's 8.8.8.8 I get a random result with random TTLs.
Perhaps the TTLs can be explained by Google's higher-level caching 
not coping with the conflict and leaving the individual servers to
handle it, but their software is still producing two different results. 

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