Head-to-head comparison
Ahrefs vs Semrush
Both tools scored on the same 0-to-10 scale, compared only where they actually compete — no marketing claims, just the rankings.
Across 4 shared rankings, Ahrefs and Semrush come out even at 2-2.
Head to head
The 4 use cases where both tools are ranked. Higher score wins the row.
| Use case | Ahrefs | Semrush |
|---|---|---|
| Keyword Research & Clustering | A 8.54 | A 8.74 |
| Competitor & SERP Analysis | A 8.43 | A 8.58 |
| Rank Tracking | A 8.45 | A 8.32 |
| Site Audit & Technical SEO | A 8.45 | A 8.36 |
The bottom line
Ahrefs and Semrush are evenly matched across the 4 use cases where both are ranked, splitting the head-to-head 2-2. Ahrefs comes out ahead for Rank Tracking, Site Audit & Technical SEO. Semrush leads for Keyword Research & Clustering, Competitor & SERP Analysis.
Both tools are scored on the same transparent 0-to-10 scale, so these gaps reflect measured performance per use case — not marketing. Pick whichever wins the job you actually care about, and open the full reviews for pricing and limits.
Only Semrush competes here
Ahrefs is not ranked in these use cases.