Semrush vs Ahrefs
Semrush for all-in-one marketing; Ahrefs for backlink analysis and content research.
Last verified: May 2026
Quick verdict
Choose Semrush if...
- ✓ You need PPC and paid search tools alongside SEO
- ✓ You want an all-in-one platform covering SEO, social, and content
- ✓ You want a 7-day free trial before committing
- ✓ You manage digital marketing beyond just organic SEO
Choose Ahrefs if...
- ✓ Backlink analysis and link building are your primary use cases
- ✓ You rely heavily on content gap analysis
- ✓ You want the strongest backlink index available
- ✓ You use Ahrefs Webmaster Tools on your own site for free
Skip both if...
You only need basic keyword research — free tools like Google Search Console and Ubersuggest may suffice to start
Winner by use case
| Use case | Winner | Why |
|---|---|---|
| Backlink analysis | Ahrefs | Ahrefs has the largest and most frequently updated backlink index. |
| Keyword research | Tie | Both are excellent; Semrush has slightly more data for paid search. |
| Content gap analysis | Ahrefs | Ahrefs Content Gap tool is considered best-in-class. |
| PPC and paid search | Semrush | Semrush has dedicated PPC tools that Ahrefs lacks. |
| Site audit | Tie | Both have strong site audit tools with different emphasis. |
| All-in-one marketing platform | Semrush | Semrush covers SEO, PPC, social, and content in one place. |
Side-by-side comparison
Dimension
Semrush Ahrefs Starting price
$139/mo
$129/mo
Free plan
Limited free account
Free Webmaster Tools (own sites only)
Best known for
All-in-one marketing platform
Backlink index, content research
PPC tools
Yes — dedicated PPC features
No
Content gap
Good
Best-in-class
Free trial
7-day free trial
No credit card trial
Pricing
Semrush - Starting price
- $139/mo
- Free plan
- Yes
- Free trial
- 7 days
- Deal
- 7-day free trial
Frequently asked questions
Which is better for beginners?
Semrush has a slightly gentler learning curve and more guided workflows. Ahrefs is also well-documented but more focused on advanced SEO practitioners.
Can I use both?
Some agencies use both — Ahrefs for backlink/content research and Semrush for PPC and reporting. For most teams, one is sufficient.
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