SEO Fundamentals

Broken links can block discovery and turn AI citations into dead ends. See what is proven, what is inference, and what our 30-site crawler audit found.

Google's March 2026 Core Update hit 9.5 on SEMrush Sensor — one of the most volatile in years. Here's what changed and where broken links factor in.

Do broken links affect SEO rankings? See what Google's team has said on the record, what the data shows, and when broken links actually matter.

Learn what broken links are, how dead links damage your SEO rankings and user experience, and exactly how to find and fix them before they cost you traffic.