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Recently, I spent some time in the SEO MOZ Crawl Diagnostics, and found that I have 40 pages that are being listed as “duplicate content.” These are original blog posts, but I made the mistake of sharing on social media immediately after publishing each post.  I recently found out that if you post on a blog and on social on the same day, Google indexes the social first, and then up to 2 weeks later indexes the actual blog post. When it does, it stamps the blog post as duplicate and the social media posting as the original. Any ideas on how I can rectify this? Any code I can put in each blog post to let Google know they’re the original?  I’ve begun publicizing my blogs on social 14 days after I actually publish them to alleviate the issue going forward, but I’d like my 40 other blog posts to get the authority they deserve.