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My website www.aquatell.com was recently moved to the Shopify platform.  We chose to use the http domain, because we didn't want to change too much, too quickly by moving to https.  Only our shopping cart is using https protocol.  We noticed however, that https versions of our non-cart pages were being indexed, so we created canonical tags to point the https version of a page to the http version.  What's got me puzzled though, is when I use open site explorer to look at domain/page authority values, I get different scores for the http vs. https version.  And the https version is always better.  Example:  http://www.aquatell.com DA = 21 and https://www.aquatell.com DA = 27.  Can somebody please help me make sense of this?  Thanks,

About 2 months ago we relaunched our Ecommerce store on Shopify Plus and have since seen a massive drop in traffic, sales and our most valuable pages are nowhere to be found. Also, GWT is showing that Google is indexing about half of our pages and none of the images are being indexed. We did extensive keyword research, created/implemented a keyword framework, wrote brand new category/product page content, implemented schema markup, optimized our blog content and even did link building where we got some 90+ DA links. We are literally at a loss for what is causing this. Our experience with Shopify Plus has been very poor because it doesn't even do basic SEO stuff so we've had to do a lot of workarounds to make it "SEO friendly". Has anyone else ever switched to Shopify Plus and had similar issues? Is there a silver bullet that you can think of that we are missing that could get the site being indexed/ranking again?