How to optimize dns requests

[Tony Finch]

Abdellatif ... <kikookik at live.com> wrote:
>
> It doesn't seem to use the cache, here is the call of dig mail.com :

If you dig it twice do you get a faster response?

Tony.
-- 
f.anthony.n.finch  <dot at dotat.at>  http://dotat.at/
Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at first.
Rough, becoming slight or moderate. Showers, rain at first. Moderate or good,
occasionally poor at first.