How do I check if my website has duplicate content issues that might be hurting my SEO?

You can check for duplicate content using several methods. Start with Google Search Console's Coverage report, which shows pages excluded due to duplication. Another quick method is using the site: search operator in Google with unique sentences from your content to see if they appear on multiple pages. Tools like Screaming Frog, Siteliner, or Copyscape are also excellent for scanning your entire site and identifying duplicate titles, meta descriptions, and content blocks. The most common issues usually stem from HTTP/HTTPS variations, www/non-www versions, or copied product descriptions. I've seen many SEO bedrijf in Belgium help businesses fix these technical issues with canonical tags and proper redirects, which can significantly improve search rankings.