Having duplicate content is the most common major SEO issue on websites, according to recent research from SEMrush.

The report was based on anonymous data collected via SEMrush's Site Audit tool on 100,000 websites and 450 million pages.

Some 50% of the websites examined had duplicate content.

Other common serious search engine optimization issues include duplicate title tags (present on 35% of sites examined), broken internal links (35%), duplicate meta descriptions (30%), and broken external links (25%).

Check out the infographic for more findings from the report:

About the research: The report was based on anonymous data collected via SEMrush’s Site Audit tool on 100,000 websites and 450 million pages.

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ABOUT THE AUTHOR
image of Ayaz Nanji

Ayaz Nanji is a digital strategist and a co-founder of ICW Media, a marketing agency specializing in content and social media services for tech firms. He is also a research writer for MarketingProfs. He has worked for Google/YouTube, the Travel Channel, AOL, and the New York Times.

LinkedIn: Ayaz Nanji

Twitter: @ayaznanji