Semrush vs Ahrefs: which SEO platform wins in 2026?
UpdatedFeature-by-feature comparison
| Feature | Semrush | Ahrefs |
|---|---|---|
| Free plan | Limited free account, 10 requests/day | Free Ahrefs Webmaster Tools for owned sites only |
| Keyword database (stated) | 26+ billion keywords across 142 databases | 27.5+ billion keywords across 243 databases |
| Backlink index (stated) | 43+ trillion backlinks | 35+ trillion backlinks |
| Authority metric | Authority Score (proprietary, 0–100) | Domain Rating (proprietary, 0–100) |
| Site audit (on test domains) | Ran successfully; deep technical checks | Ran successfully; cleaner issue grouping |
| Position tracking | Included with quota by tier | Separate Rank Tracker quota by tier |
| Content tooling | SEO Writing Assistant, Topic Research | Content Explorer with traffic estimates |
| Local SEO / Listings | Yes (Listing Management add-on) | Not core to product |
| PPC research | Strong (Advertising Research suite) | Limited |
| AI features (mid-2026) | AI assistant in Writing Assistant; Copilot beta | AI Content Helper; AI Overview tracking |
| API access | Available on Business tier and above | Paid add-on, per-row pricing |
| Cheapest paid plan | $139.95/mo (Pro) | $129/mo (Lite) |
| Best for | Agencies needing PPC + local + SEO in one suite | Link builders, technical SEOs, content teams |
Pricing snapshot
Public vendor pricing as of . Both vendors change pricing without notice; check their own pages before buying.
Semrush
- Pro$139.95/mo5 projects, 500 tracked keywords, core SEO + PPC tools
- Guru$249.95/mo15 projects, 1,500 tracked keywords, historical data, content tools
- Business$499.95/mo40 projects, 5,000 tracked keywords, API access, share of voice
Ahrefs
- Lite$129/mo1 user, 5 projects, limited credits
- Standard$249/mo1 user, 20 projects, Content Explorer, 6mo history
- Advanced$449/mo3 users, 50 projects, Web Explorer, 2yr history
- Enterprise$14,990/yr5+ users, SSO, audit log, dedicated support
How we made this page
Reference test domains: stripe.com, notion.so, shopify.com. We test against the same three sites on every page so results stay comparable and reproducible.
Last tested: .
We re-test both products against the same three reference domains every quarter. Pricing is screenshot-verified from the vendors' public pricing pages on the date above. We have no affiliate relationship with either vendor as of 2026-06-30.
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