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I would definitely not block these pages.  You want to block as few pages as possible.

1. These pages can be used to boost internal links by linking to your important pages.

2. Google crawls thousands of pages...it will likely crawl all your important and unimportant files.

3. You can de-prioritize these page in the XML sitemap, telling the spiders that there are more important pages to crawl.

4. If these are similar pages, then use the URL parameter tool in Search Console to indicate a page might be a filtered version of a more important page.

I'm getting a "Your page is not mobile-friendly." notice in the SERPs for all of our PDFs.  I check the pdf on the phone and it appears just fine.

rFtLq

Thanks!  What about adding a rel canonical from the blog to a page on the main site?

I want as much traffic as possible to my main site, but right now my blog lives on a blog.brand.com URL rather than brand.com/blog.

What are some good solutions for getting that traffic to count as traffic to my main site if my blog is hosted on WordPress?

Can I just create a sub-directory page and add a rel canonical to the blog post?

I'm working through duplicate content issues. The tracking code or the session id in the URL is being recognized as a different page than the original. Example:

www.example.com is dup content to www.example.com?_nk=x&ad=y&_ga=z, which is tied to a marketing campaign

If my setup in the URL parameter tool is set to: Effect = None  Crawl = Representative URL, then do I:

1. Miss all the traffic being driven to the ?_nk page?
2. With a Rep URL, there still would be two indexed listings:  the .com & the .com?_nk...right?

Neither is good.  Redirects of all the URLs is not an option b/c there are hundreds of these that would need to be redirected. And I also don't want to slow down page load time with excessive redirects, which has been the case when adding 100+ redirects for the recent website migration we did.