Semrush vs Ahrefs — Which SEO Tool Is Worth It?
Semrush costs $130/month, Ahrefs $99/month. Here is which one to pay for — and the free tools that cover most of what either does.
| Feature | Semrush | Ahrefs |
|---|---|---|
| Free tier | 10 searches/day | Free for your own verified sites |
| Backlink index | ⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ |
| Keyword database | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ |
| Site audit | ✅ Included | ✅ Included |
| PPC / Ads research | ✅ Yes | ❌ No |
| Social media tools | ✅ Yes | ❌ No |
| Content tools | ✅ SEO writing assistant | ⚠️ Basic |
| Price | $129.95/month | $99/month |
Our verdict
Ahrefs wins for pure backlink and keyword research — its index is bigger and its interface is faster for link-building work. Semrush wins if you also need PPC research, social media tracking, and content tools in the same subscription. Most solo creators and small businesses do not need either: Google Search Console plus Ahrefs Webmaster Tools (both fully free for your own site) cover 80% of what people actually use these for.
Which one is right for you
Choose Semrush if
SEO is one part of a wider marketing job. PPC research, social media tracking and content tools sit in the same $129.95/month subscription, so it replaces several tools rather than one. Its backlink index is the smaller of the two.
Choose Ahrefs if
Link building is the work. The backlink database is the largest available and the interface is faster for that specific job, at $99/month. What you give up is everything outside SEO — no PPC, no social tools.
What the free plans actually give you
This is the widest price gap on the site, and the verdict is unusually blunt about it: most solo creators and small businesses need neither. Google Search Console gives you real ranking data straight from Google, and Ahrefs Webmaster Tools gives you a backlink profile for your own sites — both free, both covering roughly 80% of what people actually open these tools to do.
Free ranking data straight from Google, plus a free backlink profile for your own site from Ahrefs — no subscription needed.
Try free →Frequently asked questions
Do I really need a $100+/month SEO tool?
Only if you are analysing competitors or clients at scale. The paid tiers exist for agencies and in-house teams doing that work daily. For monitoring and improving your own site, the free combination covers most of it.
What do the free plans actually allow?
Semrush limits you to 10 searches a day, which is enough to spot-check but not to work. Ahrefs Webmaster Tools is more generous but restricted to sites you own and have verified — you cannot use it to study a competitor.
Which has better backlink data?
Ahrefs, and it is the clearest single advantage in this comparison. Semrush's index is smaller. If backlinks are the reason you are subscribing, that decides it regardless of the extra tools Semrush bundles.
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