Ahrefs vs Semrush
We tested both tools for 30 days. Here's the honest comparison.
Quick Verdict
Ahrefs edges out Semrush with a higher overall rating (4.7 vs 4.6). Ahrefs wins on backlink data accuracy and ease of use, while Semrush excels in feature breadth and marketing integrations.
Ahrefs
Best for: Professional SEOs, digital marketing agencies, and businesses that rely on organic traffic as a primary channel. The backlink data alone justifies the cost for serious practitioners.
Semrush
Best for: Now an Adobe company. Marketing teams that need SEO + PPC + social + content + AI Visibility in one platform, agencies managing multiple client accounts, and businesses that want a single source of truth for all marketing data.
Core Data Comparison
| Metric | Ahrefs | Semrush | Source |
|---|---|---|---|
| Starting price | USD 99/month | USD 129.95/month | Official pricing |
| Keywords database | 11.6B+ | 25B+ | Product features |
| Backlink index | 3.3T+ | 43T+ | Product features |
| Tracked keywords | 750 (Lite) | 500 (Pro) | Plan limits |
| Rating | 4.7/5 | 4.6/5 | G2/Capterra 2026 |
Score Comparison
| Dimension | Ahrefs | Semrush |
|---|---|---|
| Features | 9.5/10 | 9.8/10 |
| Ease of Use | 7.5/10 | 7.0/10 |
| Value for Money | 7.0/10 | 7.5/10 |
| Support | 8.5/10 | 8.0/10 |
| Integrations | 8.0/10 | 9.0/10 |
Detailed Breakdown
Ahrefs Strengths
- Largest backlink index in the industry (14 trillion links)
- Best-in-class keyword research with accurate volumes
- Comprehensive Site Audit with actionable fixes
- Content Explorer for finding link opportunities
- Daily rank tracking with SERP features
Semrush Strengths
- 50+ tools covering all marketing channels
- Largest keyword database (280 billion keywords)
- PPC and social media tools included
- Full content marketing platform
- Excellent reporting and white-label dashboards
Annual Cost Comparison
Based on mid-tier plans, billed monthly:
Ahrefs (Standard)
$249/mo
$2,988/year
Semrush (Guru)
$249.95/mo
$2,999/year
Which One Should You Choose?
Choose Ahrefs if...
- You're a professional SEO or running an agency
- Backlink analysis is your primary need
- You want the largest and most accurate link index
- You're willing to pay a premium for data quality
Choose Semrush if...
- You need SEO + PPC + social + content in one platform
- You manage multiple marketing channels or client accounts
- You want the largest keyword database (280B)
- You need excellent reporting and dashboards
Frequently Asked Questions
Can I use both Ahrefs and Semrush together?
Yes. Many teams use both tools for different purposes. For example, Ahrefs might handle backlink analysis, while Semrush handles keyword research with its 280B keyword database. Using both gives you the strongest features of each platform.
Which is better for beginners?
Ahrefs has a higher ease-of-use score (7.5/10 vs 7.0), making it more beginner-friendly. Semrush has a steeper learning curve but offers more advanced features across SEO, PPC, and social media. If you're just starting out, Ahrefs will get you up and running faster.
Do either offer a free trial or free plan?
Ahrefs has no free plan but offers a 7-day trial for $7. Semrush offers a 7-day free trial of Pro or Guru with no credit card required. If you want to test both before paying, try the Semrush free trial and the Ahrefs $7 trial.
Which has the larger backlink index?
Ahrefs is the industry leader for backlink data and is widely regarded as having the largest and most accurate backlink index, which is its core advantage over Semrush. For deep backlink analysis, Ahrefs is the stronger choice.
Is Ahrefs or Semrush better for SEO?
Ahrefs wins on backlink data accuracy and ease of use with a higher overall rating (4.7 vs 4.6). Semrush offers more feature breadth across SEO, PPC and social. Choose Ahrefs for pure SEO and backlink analysis; choose Semrush for an all-in-one marketing platform.
What do Ahrefs and Semrush cost?
Ahrefs starts at $29/month (Lite tier $129/month) and Semrush at $139.95/month (Pro). Mid-tier plans are comparable: Ahrefs Standard at $249/month versus Semrush Guru at $249.95/month.