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Meta Tag
Meta tag Robots
Description
Robot Meta Tag Options There are four directives that can be placed in a robots meta tag. The CONTENT section of the meta tag can contain: index,noindex,follow,nofollow and are separated by commas.
At this point, only the following combinations make sense:
There are also, two global directives that can specify both actions: ALL=INDEX,FOLLOW, and NONE=NOINDEX,NOFOLLOW.