Robot behaviour

using the robots meta correctly

[Skylo]

Hi,

In researching how to use the robots meta effectively so that SE's won't cache or index my pages i have come across 2 common tags:

1 - <META NAME="ROBOTS" CONTENT="NOARCHIVE"> &
2 - <META NAME="ROBOTS" CONTENT="NOINDEX,NOFOLLOW">

My question is, don't these achieve the same thing and can we not just combine the tags:

...CONTENT="NOINDEX,NOFOLLOW,NOARCHIVE">

I have never seen the meta used this way. Please can someone clarify for me.

Many Thanks

Skye