Google’s Gary Illyes said on Twitter this morning that you can prepare for the mobile-first index which likely isn’t launching until next year by looking for noindex directives and faulty redirects.

Here is Gary’s tweet from this morning:

The n1 redirects are the same thing as faulty redirects as described here and over here.

Truth is, any SEO who works on a site already does this, so this isn’t really new.

Forum discussion at Twitter.