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At the moment for most of our sites, we have both a desktop and mobile version of our sites. They both show the same content and use the same URL structure as each other. The server determines whether if you're visiting from either device and displays the relevant version of the site.

We are in a predicament of how to properly use the canonical and alternate rel tags. Currently we have a canonical on mobile and alternate on desktop, both of which have the same URL because both mobile and desktop use the same as explained in the first paragraph.

Would the way of us doing it at the moment be correct?

Hi,

I can't give off too much information as it's not my call, but I can answer your questions without mentioning the brands.

1. We have multiple brand sites, that have a similar setup. They all have mobile and desktop versions of the sites running on the same URL, both of which show the same content.

2. The server determines whether if you're on a desktop or mobile devices using the header information, and points the user to the site relevant files for the given device.

3. Our sites would quite clearly fit in the dynamic serving category.

We have 301 redirects on none www to www and http to https.

Just to confirm, are we suppose to have a canonical on desktop and mobile or just desktop?

This would mean removing the alternate?

Want to confirm everything before iterating this across to others.

We are not using AMP, just a standard site setup.

I've been told to pass on a URL, thanks for your help Thomas!

https://www.stag.com/

So a self referencing canonical on both mobile and desktop versions of the site, regardless if they chuck out two version with the same content?

As our content can be quite long at the top, we introduced js anchor scroll going straight to the products, by passing the banner and the content at the top. Can this have an issue on seo?