<b>Semrush Site Audit vs Ahrefs Site Audit: which flags the right fires</b>

<b>Semrush Site Audit vs Ahrefs Site Audit: which flags the right fires</b>
I ran both crawlers on the same mid-size site and compared not the issue count but the prioritization.

Semrush Site Audit:
➕ Thematic reports (crawlability, HTTPS, Core Web Vitals) group fixes by project
➕ Compares crawls over time so you see if you're actually closing issues
➖ Inflates the issue list — flagged ~140 'issues', many cosmetic

Ahrefs Site Audit:
➕ Health Score is a single honest number you can report up
➕ The data explorer lets you build custom filters on any crawl field
➖ Fewer hand-holding explanations than Semrush

Best for: Semrush if you want a guided fix-this-next workflow. Ahrefs if you want to slice crawl data yourself and one clean health number.

Price vs value: both bundled in their ~$129/mo suites — neither is a standalone buy, which matters for the decision.

Pick this if you report a health number to a boss — Ahrefs. Skip if you need step-by-step guidance — Semrush hand-holds better.

Affiliate-neutral.