Ahrefs
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Ahrefs vs Moz Pro: 28.7B Keywords vs Domain Authority Pioneer
Ahrefs and Moz Pro are both established SEO platforms, but they serve different priorities. Ahrefs leads with a 28.7 billion keyword database and the web's most active crawler, while Moz Pro brings the industry-standard Domain Authority metric and the best local SEO tools available. Ahrefs starts at $129/month for its Lite plan; Moz Pro starts at $49/month.
Last updated: April 13, 2026
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Quick Verdict
Ahrefs wins for most SEO professionals with its vastly larger keyword database (23x), superior site audit capabilities, more mature content tools, and higher user satisfaction ratings. Moz Pro is the better choice for local SEO, budget-conscious teams, and anyone who values Domain Authority as their core metric.
If you need deep data for backlinks, keywords, and competitive research, Ahrefs justifies the higher price. If you need local SEO tools or a lower entry point, Moz Pro delivers.
Ahrefs is best for:
- ✓Backlink research and link building campaigns
- ✓Keyword research depth (28.7B vs 1.25B keywords)
- ✓Technical site audits with JavaScript rendering
- ✓Content research and AI optimization
- ✓AI visibility monitoring across ChatGPT, Perplexity, and others
- ✓Agencies and power users needing deep competitive data
Moz Pro is best for:
- ✓Local SEO and listing management (Moz Local)
- ✓Teams that rely on Domain Authority as their primary metric
- ✓Budget-conscious teams wanting a major SEO platform from $49/mo
- ✓Beginners who prefer a simpler, less overwhelming interface
- ✓Daily rank tracking without expensive add-ons
- ✓API access on a budget ($5/mo vs thousands for Ahrefs)
My take: Ahrefs is the stronger all-around SEO tool with 23x more keywords and deeper data. Moz Pro wins on price ($49/mo vs $129/mo), local SEO, and Domain Authority. Pick Ahrefs for data depth, Moz Pro for budget and local.
Feature-by-Feature Comparison
Ahrefs and Moz Pro overlap on core SEO features but differ significantly in depth and specialization. Ahrefs invests heavily in data scale and crawling speed; Moz Pro invests in usability, local SEO, and authority metrics.
| Feature | Ahrefs | Moz Pro | Notes |
|---|---|---|---|
| Keyword Database Size | ★ | ○ | 28.7B vs ~1.25B keywords |
| Backlink Index | ★ | ● | Both have large indexes; Ahrefs updates faster |
| Site Audit | ★ | ● | Ahrefs: JS rendering, CWV, 100+ checks. Moz: solid but fewer checks |
| Rank Tracking | ● | ● | Moz: daily on all plans. Ahrefs: weekly (daily is $200/mo add-on) |
| Content Tools | ★ | ○ | Ahrefs: Content Explorer, AI Helper. Moz: topic suggestions only |
| Local SEO | ✗ | ★ | Moz Local is industry-leading; Ahrefs has nothing comparable |
| Domain Authority Metric | ● | ★ | DA is the industry standard. Ahrefs has DR/UR, less universal |
| AI Visibility Tracking | ★ | ◐ | Ahrefs Brand Radar tracks 5+ AI engines. Moz: open beta |
| Free Tools | ★ | ● | Ahrefs Webmaster Tools is permanently free. Moz: limited free tools |
| API Access | ● | ★ | Moz API: $5/mo. Ahrefs API: included but usage-limited, standalone from $2K/mo |
| Ease of Use | ● | ★ | Moz is more beginner-friendly. Ahrefs has more data density |
| Spam Score | ✗ | ✓ | Moz's unique Spam Score metric for link quality assessment |
Pricing Comparison
Moz Pro is cheaper at every tier, but Ahrefs includes significantly more data per dollar. The right comparison isn't price vs. price, it's value vs. value.
| Plan / Tier | Ahrefs | Moz Pro | Notes |
|---|---|---|---|
| Entry Level | $29/mo (Starter) | $49/mo (Starter) | Ahrefs Starter is very limited. Moz Starter includes more core features. |
| Individual / Small Team | $129/mo (Lite) | $99/mo (Standard) | Ahrefs Lite has 23x more keywords. Moz Standard has daily rank tracking. |
| Professional | $249/mo (Standard) | $179/mo (Medium) | Both include full features. Moz adds Moz Local at this tier. |
| Agency / Enterprise | $449/mo (Advanced) | $299/mo (Large) | Ahrefs: 10K rank tracking keywords. Moz: 3K keywords. |
Moz Pro is 30-40% cheaper at comparable tiers, but Ahrefs delivers substantially more data per dollar. A Moz Pro Standard ($99/mo) user gets ~1.25B keywords and 300 tracked keywords. An Ahrefs Lite ($129/mo) user gets 28.7B keywords and 750 tracked keywords. The $30/month difference buys 23x more keyword data. For budget-conscious users who don't need massive keyword databases, Moz wins.
For data-driven SEO, Ahrefs is the better investment.
Who Should Choose Which?
Choose Ahrefs if you...
- ✓You need the largest keyword database for competitive research
- ✓Backlink analysis is central to your SEO strategy
- ✓You want AI visibility tracking across ChatGPT, Perplexity, and other AI engines
- ✓You need deep content research tools (Content Explorer)
- ✓You run technical audits requiring JavaScript rendering and Core Web Vitals
- ✓You want permanently free tools (Ahrefs Webmaster Tools)
Choose Moz Pro if you...
- ✓Local SEO and listing management are important to your business
- ✓Domain Authority is your primary authority metric for client reporting
- ✓You need a quality SEO platform starting under $50/month
- ✓You prefer a simpler, more beginner-friendly interface
- ✓You need daily rank tracking without paying for expensive add-ons
- ✓You want cheap API access for programmatic data ($5/mo)
Final Recommendation
For most SEO professionals and agencies, Ahrefs is the stronger investment. The 23x larger keyword database, deeper backlink data, superior content tools, and AI visibility tracking make it worth the premium over Moz Pro.
However, Moz Pro earns its place for local SEO specialists (Moz Local is unmatched), budget-conscious teams who need a reputable platform from $49/month, and anyone whose workflow centers on Domain Authority. Consider using both if your budget allows: Ahrefs for research depth and Moz for DA metrics and local.
Ahrefs
Comprehensive SEO platform with powerful backlink analysis and keyword research tools
Starting at $29/mo
Try Ahrefs →Moz Pro
Veteran SEO platform with 20+ years of experience and comprehensive toolkit for rankings, traffic, and optimization
Starting at $99/mo
Try Moz Pro →Frequently Asked Questions
For most SEO use cases, yes. Ahrefs has a 23x larger keyword database (28.7B vs 1.25B), a more active web crawler, deeper site audit capabilities, and stronger content tools. Moz Pro is better specifically for local SEO, Domain Authority tracking, and teams on a tighter budget.
Yes, for the right use case. Moz Pro's Domain Authority remains the industry-standard metric, and Moz Local is the best local SEO tool available. At $49/month, it's also the most affordable major SEO platform. It's less suitable if you need deep keyword research or competitive backlink analysis.
Many agencies do. The typical combo uses Ahrefs for keyword research, backlink analysis, and content research, while using Moz for Domain Authority reporting and local SEO management. The Moz API at $5/month makes it cheap to integrate DA scores into any workflow.
Ahrefs. Their Webmaster Tools is permanently free and includes Site Explorer (for your own sites), Site Audit (5,000 crawl credits/month), and unlimited verified websites. Moz offers free but limited versions of Domain Analysis, Keyword Explorer, and Link Explorer, plus a 7-day trial.
Yes, all Moz Pro plans include daily rank tracking. Ahrefs only offers weekly rank updates on standard plans; daily tracking requires a $200/month add-on. However, Moz recently reduced its rank tracking depth to Top 20 positions only.
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