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Whenever you use domain "masking", you're setting yourself up for search engine ranking problems. You're essentially making the same content available on both domain names. That leads to duplicate content, and the search engines (mainly Google) will pick which domain they prefer and show that on in the search results (usually the one that they crawl first). The only proper way to deal with this is to set up 301 Permanent Redirects from one domain to the other.

Thank you Danny.  Exactly what I was looking for and fast too!

Personally, I wouldn't try get 'serious value' out of them. If there are just a couple of these domain names, redirect them to your main site. But focus on getting serious value out of your main site instead. If you have great content for ChairtypeA it should be on your ChairtypeA page, not on a micorsite. If you gain inbound links, best they point to your main site pages. Not to microsites. You're diluting the potential of ChairtypeA by spreading its content over 2 sites.

1.-Creating Great content and then doing outreach , guest posting and social promotion on it 2.- Use digtial pr - Give out samples, high res images,  provide expert advice , create relationships , Find interesting angles to pitch blogs and sites 3- Create deals and promotions and then promote it 4- Create link bait: create Crazy products like unicorn meat, Be controversial , create amazing tool To sum up provide value to the web in return for exposure and eyballs - value comes in many forms You asked for an example so here is one we did - when we saw 3d printing was all everyone talked about - we took our sample ring sizer and made a 3d printable ring sizer - https://www.brilliance.com/services/3d-rings it got tons of links And here is an infographic we did that got over 400k repins on pinterest http://site.pishposhbaby.com/blog/2014/03/12/keeping-track-baby-habits-infographic/ Best of luck

Michael, from what i can tell, your website is built using WordPress. We typically recommend installing the Yoast SEO plugin and using that--which will help with your robots.txt file. If you need more information, take a look here: https://yoast.com/wordpress-robots-txt-example/ Generally, most of your site won't need to be disallowed in the robots.txt file, unless you're using tags and categories on your site. Yoast typically helps disallow the proper directories that you need to disallow. One thing that you need to be aware of is the fact that you don't want to disallow your .CSS or .JS files on your site, many of the themes nowadays will put those files in your wp-admin folder--which by default typically gets disallowed.

This can definitely be a problem, and it needs to be fixed. It sounds as if there may be two websites with the same content showing up on the .com URL and the .COM.AU URL. What we typically recommend is that you verify your site in Google Search Console and tell Google which version you prefer--you'll need to verify both versions of your site. Also, you can use the hreflang tags on your site to tell Google that the .COM.AU site is meant for Australia, and the .COM site is meant for the USA.

Hello Robert, Hope you're doing well, Seems I just didn't include all the info I needed, making posts as if you all have access to the data I have in my head is a mistake What I meant is I have 500 urls, after doing a full link audit, 153 of those urls are trashy directory or comment spam backlinks with very spammy site templates, also they often times not had anchor text with main keywords of ours. Now yes, 153 out of 500 urls isn't that bad, however the 153 urls are more than 3 years old, and our total backlinks has grown from 160 ( a year ago ) to 500 ( today ) meaning at one point in time, we did have a majority of backlinks that were from trashy directories and comment spam, in fact last year ( 160 - 153 left us with 7 possibly ok backlinks )  was the most recent, so it's a very high possibility these urls were the reason we got hit by penguin ( have data that suggest this as well ). It's easy to get fixated on one SEO keypoint or another, but when you do, just remember to follow the data trail and make sure to see the other SEO footprints as well during that search, you can find a good bit. Even answering questions from others here helps me find further keypoints to highlight and go through.

Hey Matt! That's a really good and observant point you've raised. Making it easier for users to leave reviews does necessarily mean it will be easier for dissatisfied or even phony customers to leave reviews now, so an increase in reputation monitoring would be a must. Very true! So, word to the wise from MattAntonio: Be sure you're monitoring those Google reviews on a regular basis!

Thank you for your response. So, to be clear. You are suggesting that I close the listings which reference the the old clinic name, even if it has the same address. Also, you recommend that I should close the listings that may have the new clinic name, but reference doctors no longer with the organization? I'm not sure when it is appropriate to simply "ignore" a duplicate listing.

Hi , Did you follow all of Google's Change of Address instructions? If redirects are in place, chances are you missed something else minor that can have a big impact.

The fact they are hiding content IMO this is black hat. But, don't get too caught up in it being black hat. I know your site and in most searches you are ahead of them. They have 4 backlinks all no followed. I think there are things you could do on other pages on your site to push them down and end up with more than one page on the SERP. Go get em!

What you're showing is not the results of a Google Algorithm update. When there's an update, the traffic goes down suddenly--not slowly over time. It looks more like there was some new links or new traffic to the site for another reason--which Dmitrii is referring to, it doesn't appear to be an algorithm update.

Hi there. No, IP canonicalization doesn't make any difference, due to the way of how dns works. Even if you do this type of canonicalization, your website still will have that ip, it's kinda like a pointer. Kinda like geo coordinates vs address. It's the same place, and even if you rename the street, you still have the same coordinates. Read this here, it might help: https://moz.com/community/q/how-to-do-ip-canonicalization

If they are new products with unique descriptions and content I could not see it being flagged as spammy however thin content could be an issue. I think it would also depend on if you handle product variants properly too. I could see it being an issue if you build a separate page for each product variant though.

From my reads and attending Google hangouts with their AMP engineers, I take it that Google intended for AMP pages to be used for eCommerce from the inception of the project. You may find it helpful to read Using AMP to Reach Mobile Buyers and Getting Started with AMP for E-commerce.

Sure thing