Server Headers

How important are server headers for robots?

[zoltan]

We are running some resource intensive scripts on our website and were thinking about using Squid to cache some of the pages instead of regenerating them with Perl every time a user / robot access our site.
We have done some testings locally and we found that Squid adds 2 lines to server headers:

Age: 493
X-Cache: HIT from somedomain.com

Age means that squid cached the page 493 seconds ago while X-Cache displays the host.

Is it a problem for robots to see these 2 lines in Server Header? Any comment?

[SEOtop10]

No. The robots should get the header fields that they look for. You can always serve a few extra headers.