What's the problem? Google gets confused when the same content appears on different pages (HTTP vs. HTTPS, www vs. non-www). How it hurts your ranking: It splits the authority between pages, and Google doesn't know which one to rank.
What's the problem? If your site takes too long to load, users will leave quickly. How it hurts your ranking: Google prefers fast sites for a better user experience.
What's the problem? Links on your site lead to pages that don’t exist anymore. How it hurts your ranking: Google sees broken links as poor maintenance, and it can lower your site's authority.
What's the problem? Your website doesn’t work well on mobile devices. How it hurts your ranking: Most users browse on phones. Google ranks mobile-friendly sites higher.
What's the problem? Pages on your site lack important SEO tags like title and meta description. How it hurts your ranking: Without proper tags, Google doesn’t understand what your page is about, making it harder to rank.