Ahrefs
Ahrefs is the tool I reach for when I need to reverse-engineer a competitor's traffic or dig into backlinks. It's not perfect, but for link analysis and keyword discovery, nothing else comes close.
The short verdict
- Use Site Explorer for competitor traffic and keyword analysis — it's the best feature.
- Don't rely on traffic estimates for reporting; they're directional at best.
- Pair Ahrefs with a dedicated crawler like Screaming Frog for technical audits.
- Start with the free traffic checker, but upgrade if you need backlink data or keyword discovery.
- Consider Semrush if you need PPC or social media data alongside SEO.
That said, it's not a one-size-fits-all tool. Here's where it shines and where I'd look elsewhere.
What I'd actually use it for
- Competitor traffic analysis. Drop any domain into Site Explorer and you get a decent estimate of their organic traffic, top pages, and keywords. I use this to spot which content formats are working in my niche.
- Backlink research. The index is huge and updated often. I use it for link prospecting (finding sites that link to competitors but not to me) and for auditing my own link profile.
- Keyword discovery. Keyword Explorer is great for finding long-tail variations and seeing search volume trends. I often start here before moving to Google Search Console for confirmation.
- Content gap analysis. Compare your domain against 2-3 competitors and see which keywords they rank for that you don't. It's a fast way to build a content roadmap.
What it's good at
The backlink index is the best in the business. I've spot-checked it against other tools and Ahrefs consistently finds more links, faster. The Site Explorer interface is also intuitive — you can go from a domain overview to a specific keyword report in two clicks.
The Top Pages report is another standout. It shows which pages on any site get the most traffic and how that changes over time. I've used it to reverse-engineer content strategies for dozens of sites.
And the free Website Traffic Checker? It's a smart hook. You get a quick snapshot without signing up, which is rare for a tool this expensive.
What it's awkward for
The traffic estimates are the biggest pain point. They're modeled from clickstream data and search volumes, so for a small site with 5,000 monthly visits, Ahrefs might show 2,000 or 8,000. I've seen it be off by 50% or more. You can't use it for reporting — only for directional analysis.
Another thing: the site audit tool is fine for a quick check, but it's not a replacement for a proper crawler. I've had it miss issues that Screaming Frog caught immediately. If you're doing a technical audit, use something dedicated.
And the pricing. It's expensive. The Lite plan starts around $99/month, but that limits you to 5 projects and 500 tracked keywords. The Standard plan ($199/month) is more realistic for most users. I've let my subscription lapse more than once because I wasn't getting enough value.
Common mistakes I see
- Treating traffic estimates as real analytics. I've seen people report Ahrefs numbers to clients as if they're Google Analytics. They're not. Use them for trends, not truth.
- Only using the free traffic checker. It gives you a headline number, but you miss the real value: the Top Pages and Organic Keywords reports. Those are behind the paywall.
- Ignoring country-level data. Site Explorer can show you traffic by country. I've found opportunities where a competitor gets most of their traffic from the UK, so I target the US instead.
- Assuming the keyword difficulty score is gospel. It's a useful heuristic, but I've ranked for "difficult" keywords with thin content and failed on "easy" ones. Use it as a starting point, not a verdict.
Alternatives I'd consider
- [Semrush](/tool-lab/semrush/) — The main competitor. Better if you need PPC data, social media tracking, or a more polished reporting interface. But the backlink index is smaller and updates less frequently.
- Moz Pro — Cheaper, and the Domain Authority metric is still widely used. But the keyword data is less accurate and the interface feels dated.
- [Ubersuggest](/tool-lab/ubersuggest/) — A budget option that's surprisingly good for keyword ideas. But the backlink data is thin and traffic estimates are even less reliable.
- Free tools — Google Search Console + Google Analytics + a free backlink checker (like Ahrefs' own) can cover 80% of what you need if you're on a tight budget.
Next step
Quick answers
Is Ahrefs worth the money?
If you do regular competitor analysis or backlink research, yes. If you're a small site owner on a budget, start with free tools and upgrade when you hit a wall.
How does Ahrefs compare to Semrush?
Ahrefs has a better backlink index and is more intuitive for SEO-specific tasks. Semrush has more features (PPC, social, content marketing) but can feel bloated.
Can I use Ahrefs for technical SEO?
Yes, but it's not my first choice. The site audit tool is good for basics, but I prefer Screaming Frog for depth.
Sources
Primary documentation is linked directly. Anything commercial is marked nofollow.
- Ahrefs Help Center - How can I check organic search traffic of sites I don't own? — Primary documentation for Site Explorer and traffic reports.
- Ahrefs Blog - 15 Smart Ways to Check Competitor Website Traffic — Primary Ahrefs guidance on traffic and competitor research workflows.
- Ahrefs YouTube Tutorial - How To Utilize Ahrefs' Website Traffic Checker — Shows the free traffic checker workflow and access notes.
Notes from Callum Bennett.