Welcome to the Q&A Forum

During SEO audit for a client I noticed that they had over a dozen duplicate websites that are carbon copies of the main website. This was done via CMS platform and DNS. One of the mirror sites has about 400 indexed pages and has Moz DA of 42 and 137k External Equity-Passing Links. Full metrics comparison is attached. I originally planned on doing rel="canonical" on the mirror site but the CMS vendor never even heard of it and is refusing to implement it in the header. My only other option is doing one to one 301 redirects. Since the mirror site ranks well, even competes with main domain for some positions on the 1st page of SERP, what will be the impact after the redirects? Is doing 301's still the best option? Thanks! PrUpN3q

We have two websites that align with it each other: Site #1 - Industry editorial website that provide high quality, original and current content. This site is mature and has high authority relatively speaking. Site #2 - Industry resource website that educates general public and insiders about the industry. Content is professionally written with fantastic art and basically breaks down different manufacturing processes/materials and walks people through the benefits. Would it be a sound approach to add anchor text/link within articles on site #1 to site #2? Below are a few scenarios: Article on site #1 is talking about using [manufacturing process] to make something and site #2has a page that describes [manufacturing process] in great detail. Article on site #1 is talking about using [material] and site #2 has a page that describes **[material]**in great detail. Article on site #1 is talking why its beneficial to use a particular [material] or [manufacturing process] and site #2 has a page that describes all benefits of [material] or [manufacturing process] in great detail. Obviously, this will only be sprinkled in here and there and not in every article. It should provide users with more insight but will SE's see it that way?