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Hi Johannes, I've understood your question to be about how to treat a site which uses dynamic serving for mobile content. Is this correct? If your site keeps the same URLs for mobile and desktop versions, but serves different content based on user agent, then you will simply need to include a Vary-HTTP header. You can learn more about that here.

Using the disallow directive in the robots.txt file is probably the better bet as far as making sure that our tools don't crawl those pages and report duplicate page titles. I think the disallow directive is the way to go! That said, I'm not an SEO expert, so it might be worth checking in with a web developer to see if they have different suggestions.

Hi Johannes! Did Umar answer your question?

Thanks guys for respond my QA, Otherwise when we redirect the URL permanent move (301), What we need to do with Moz create a new campaign Or just change the domain ?

There are two things to do to fix this: When you upload a photo to a post, don't link it to the "attachment page' - this is a unique page just for the image, and is not needed. Here are your four options ---> http://screencast.com/t/KlUXTbes 'None' - makes the image not clickable Media file - links to the image file itself, which is good if you want users to see the image bigger Custom URL - you can link the image to anything you want, like an external link Attachment Page - is the one you want to avoid If you use the Yoast SEO plugin Go to Advanced -> Permalinks Check off "redirect attachment URLs to parent page' - this will redirect any images on their own URLs back to the page or post.