Global Meta Robots
Specify whether you would like robots to crawl your website. Can be updated from Site Admin -> Settings -> Analytics & SEO.
Default settings INDEX, FOLLOW.
Robots will treat the absence of a specific disallowing tag ("noindex" and/or "nofollow") as permission. Therefore, if you do not use "NOINDEX" for example, the robots will assume you mean "index".
Allow - Index, Follow
Disallow - Noindex, nofollow