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Hi Gaston and Gamajunova, It's true in your example that http://site.com and https://site.com are completely different URLs to Mozscape (and more importantly, search engines), but only their PA would be different - their DA will be the same. The PA 1 is normal if that exact URL (the https version) has never received any links in the past, but the DA drop is significant and I would suggest looking at another tool like Ahrefs to see if the domain has lost a lot of links recently. If you haven't lost any links, I would say the latest Moz index hasn't crawled many links pointing to your domain - so it's reporting a significantly decreased DA. If that's the case, don't worry too much about your DA. It will come back eventually and it won't have any impact on your organic performance. Cheers, David

Hi There! The best practice here would be to implement those 301 redirects to prevent the possibility of duplicate content. It does not appear that any https://www. pages are in Google's index now (screenshot) but the potential is there with both http://www. and https://www. URLs being able to resolve and the fact that they both contain self-referencing canonical tags. I would recommend making the switch to https:// given Google's recent announcement regarding the 'Not Secure' warning in Chrome 62 starting October (All http:// pages with forms will be marked as 'not secure' - more on that here).  This warning will be triggered on every page due to the 'request a quote' form in the right-hand sidebar. If you are interested in looking into this further, I recommend checking out this 'Secure your site with HTTPS' Search Console Help article. Hope this helps!