robots.txt? DTD declaration?

[pawky]

ok, i have seen it said on a site or maybe two:

use a robots.txt file instead
Use the DTD declaration instead

what is robots.txt? and what is DTD declaration? thx

[AdamGundry]

A robots.txt file gives instructions to search engine robots - check out http://www.robotstxt.org/

A document type declarartion (AKA doctype or DTD) specfies which version of (X)HTML your site uses. See http://www.alistapart.com/articles/doctype/

Adam

[pawky]

oh, doctype. ok, i was just going to be reading the site u listed today sometime. thx :) and also now to read robotstxt.org. thx for the help :D