I think we found a good work around for an issue we see on this support forum (at least I think this will work for us)
We use Site Wide Tags (SWT) to feed that new content to the main site. As noted: this creates duplicate content with example.com/new_content.php AND content at subsite.example.com/new_content.php.
The suggested set is to NOINDEX the main site. This is NOT a good solution for us since that main site has its own original content that we DO want indexed.
- Install Yoast's WordPress SEO
- Set main site to NoIndex Posts (SEO>Titles&Metas>Post Types>Meta Robots>Check noindex,follow)
- Manually go to posts that reside on main site and set to Index (Post>Edit Post>WordPress SEO by Yoast tab>Advanced tab>Meta Robots Index>choose Index)
All future incoming SWT post to the main site are auto set to NOINDEX - and any new posts to the main site must be manually set to Index using the Advanced Tab in WordPress SEO.
Not the best solution if you have a bunch of content on the main site that needs to be indexed - but one that appears to work for us - and was a pretty quick fix. You may also be able to fix this through the database (ie: find post in a specific category that you want indexed and set those posts to Index - although we did not attempt this method since the above mentioned method was a quicker truer fix for us).
I would love someone else's opinion on this. Do you see any problems - SEO wise - that we may have created by doing this. Looks like a good fix for our situation - but only time will tell as Google re-indexs the site.