Ahrefs vs Semrush
Side-by-side analysis, no fluff. We've tested both in real-world conditions.
Summary table
Ahrefs
Paid
Semrush
Paid
What's best about Ahrefs
- Best-in-class backlink index — most comprehensive and fastest-updating on the market
- Keywords Explorer difficulty scores are the most trusted and calibrated in the industry
- Free Webmaster Tools plan provides Site Audit and keyword data for your own sites at no cost
- Cleanest and most intuitive interface of any major SEO platform
What's best about Semrush
- Largest keyword database in the industry at 25+ billion keywords across 142 countries
- Competitor traffic estimation is the most detailed available for paid and organic channels
- All-in-one platform eliminates the need for multiple SEO subscriptions
- 14-day free trial lets you validate the value before committing
What's weakest about Ahrefs
- No competitor paid search or PPC intelligence (Semrush covers this)
- No social media tools or content posting features
- Rank Tracker limited to 750 keywords on Lite (Semrush Pro tracks 500 but includes more tools)
- No topic research or content writing assistant built in
What's weakest about Semrush
- Pro plan at $139.95/mo is the highest entry price among major SEO tools
- Interface is overwhelming for beginners — 55+ tools creates a steep learning curve
- Daily keyword rank tracking limited to 500 keywords on Pro (Ahrefs tracks 750 on Lite)
- Backlink index slightly smaller and slower to update than Ahrefs
Dimension scores
Ahrefs is the obvious pick if you value the seo toolset trusted by professionals for the world's best backlink data..
Frequently asked questions
Which is better, Ahrefs or Semrush?+
In our tests, Ahrefs (4.6/5) edges out Semrush (4.5/5). Ahrefs: The SEO toolset trusted by professionals for the world's best backlink data.
Does Ahrefs have a free plan?+
No, Ahrefs is paid-only. Pricing starts at $99/mo.
Does Semrush have a free plan?+
No, Semrush is paid-only. Pricing starts at $139.95/mo.
How does Ahrefs differ from Semrush?+
Ahrefs stands out for: Best-in-class backlink index — most comprehensive and fastest-updating on the market; Keywords Explorer difficulty scores are the most trusted and calibrated in the industry. Semrush excels at: Largest keyword database in the industry at 25+ billion keywords across 142 countries; Competitor traffic estimation is the most detailed available for paid and organic channels.