Free SEO Checker: Check for Hidden SEO Issues (original) (raw)

Semrush’s SEO Checker is a free SEO audit tool that scans your website and finds critical SEO issues that could limit your search performance. The SEO Checker returns an overall SEO score, a prioritized to-do list, and a detailed report that shows both the elements that passed inspection and those that need attention.

The SEO Checker analyzes meta tags, headings, keywords, backlinks, page speed, mobile friendliness, Core Web Vitals, social signals, and more.

Use the insights to implement high-impact fixes first and track quick wins.

For a deeper, site-wide view, upgrade to Semrush's Site Audit tool. Site Audit crawls your entire site, checks for hundreds of technical and on-page issues, tracks progress over time, and lets you schedule automatic audits.

The SEO Checker provides a quick snapshot of your SEO health, while Site Audit provides a full roadmap for long-term SEO success.