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From "David F. Skoll" <>
Subject Re: DUL/DUL+ redesign to improve DNS cache hit ratio [Was: TTL and DNSBLs]
Date Tue, 05 Jul 2011 22:55:32 GMT
On Tue, 05 Jul 2011 23:26:16 +0200
Andrzej Adam Filip <> wrote:

> Would you recommend redesigning (mainly) DUL/DUL+ DNSBL lists to
> improve DNS cache hit ratio?

No, not really.  The poor cache hit ratio doesn't seem to be a problem
in practice (most people were surprised by the results).  If you have
a high-enough lookup volume that it does become a problem, you just arrange
to obtain (or buy) the data and run a local authoritative name server.



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