Ahrefs backlink checker explained (free & paid options)
Someone just outranked you. Their content is worse. Their site is uglier. But they sit comfortably at position one while you're stuck on page two.
The difference? Backlinks.
And if you want to figure out why they're winning, Ahrefs' backlink checker is probably the first tool you'll reach for. It's the industry standard for a reason. But here's the thing — most people open the tool, stare at a wall of numbers, and have no idea what they're actually looking at.
Let's fix that.
What Ahrefs' backlink checker actually shows you
At its core, the Ahrefs backlink checker answers one question: who is linking to this website, and how valuable are those links?
Simple question. The answer, though, comes in layers.
When you punch a URL into Ahrefs, you'll see a dashboard packed with metrics. The ones that matter most:
- Referring domains — the number of unique websites linking to your target. One website linking to you 50 times still counts as one referring domain. This is the number Google cares about most.
- Domain Rating (DR) — Ahrefs' proprietary score from 0 to 100 that estimates the overall strength of a website's backlink profile. Higher DR generally means more authority.
- Anchor text distribution — the clickable text people use when linking to you. A healthy profile has variety. An unnatural one screams "I bought these links" because they all say the same keyword.
- Live vs. historical links — some links exist right now (live). Others existed once but have since been removed or broken (historical). Both tell a story.
According to Ahrefs' own documentation on their free backlink checker page, their index contains data from over 30.7 trillion known links. That's not a typo. Trillion with a T.
Their web crawler, AhrefsBot, is one of the most active crawlers on the internet — second only to Googlebot in some analyses. It visits pages constantly, updating link data faster than most competitors can.
This matters because backlinks appear and disappear all the time. A tool with a stale index is like checking traffic on a map that hasn't been updated in six months. You'll make bad decisions.
Free version vs. paid — what you actually get
Here's where people get tripped up. Ahrefs offers a free backlink checker, and it's genuinely useful. But it has limits.
The free version gives you:
| Feature | Free | Paid (Standard plan and up) |
|---|---|---|
| Top 100 backlinks | ✅ | ✅ (all backlinks) |
| Top 5 anchors | ✅ | ✅ (all anchors) |
| Domain Rating | ✅ | ✅ |
| Referring domains count | ✅ | ✅ (with full list) |
| Historical link data | ❌ | ✅ |
| Broken backlink finder | ❌ | ✅ |
| New/lost link tracking | ❌ | ✅ |
| Bulk analysis | ❌ | ✅ |
The free version is like peering through a keyhole. You'll see enough to understand the shape of a backlink profile. But if you need to do serious competitive analysis — like figuring out exactly which links your competitor gained last month that pushed them ahead — you need the paid version.
As of 2025, Ahrefs' Lite plan starts at $129/month. Not cheap. But for agencies and serious SEOs, it's table stakes.
For casual checks — say you want to quickly see who links to a competitor's blog post — the free version works fine. Don't let anyone tell you otherwise.
How Ahrefs compares to lighter backlink tools
Ahrefs isn't the only game in town. Tools like Ubersuggest, Moz Link Explorer, and Google Search Console also show backlink data. So why does Ahrefs dominate this category?
Index size.
Ahrefs claims to have the largest index of live backlinks among commercial SEO tools, with over 14 billion pages crawled daily. Moz's Link Explorer, while solid, has historically maintained a smaller index. Ubersuggest relies partly on third-party data and tends to show fewer referring domains for the same URL.
Google Search Console shows your own backlinks for free — and it's data straight from Google. But it won't let you check competitors. That's a dealbreaker for competitive analysis.
Here's a practical example. Check a mid-sized Malaysian business website on Ubersuggest, and you might see 200 referring domains. Check the same site on Ahrefs, and you'll often see 400+. Those "missing" links on lighter tools aren't fake — Ahrefs just found them because its crawler reached more pages.
Does that mean lighter tools are useless? No. But for backlink analysis specifically, Ahrefs is the deep-sea submarine while most alternatives are snorkels.
What to actually look for in a backlink report
This is the part most guides skip. You've got the data. Now what?
Whether you're using the free or paid version, here are three things to check immediately:
1. Toxic or spammy links
Not all backlinks help you. Links from gambling sites, link farms, or completely irrelevant foreign-language directories can actually hurt. Look for linking domains with suspiciously low DR (under 10) combined with high outbound link counts. That's usually a spam signal.
If you find toxic links, Google's disavow tool lets you tell Google to ignore them. Use it carefully — disavowing legitimate links is a common mistake.
2. Anchor text diversity
Pull up your anchor text distribution. If 60% of your backlinks use the exact same keyword as anchor text, that looks manipulative to Google.
A natural anchor text profile looks messy. Brand names, naked URLs, "click here," generic phrases, and yes — some keyword-rich anchors too. The messiness is the signal that it's natural.
3. DR of linking domains
One link from a DR 70 news site is worth more than 100 links from DR 5 blogs nobody reads. Sort your backlinks by the linking domain's DR. This tells you where your real authority is coming from — and where your competitors' authority comes from, too.
These three checks take maybe ten minutes. But they'll tell you more about a site's SEO health than hours of guessing.
Where backlink analysis fits into your SEO workflow
Let's be honest about something. Backlink analysis is one piece of the SEO puzzle. An important piece, yes. But it doesn't replace keyword research, rank tracking, or on-page optimization.
And here's where we'll be straight with you: backlink analysis is a category where Ahrefs is genuinely hard to beat. At SapuSEO, we don't try to out-muscle Ahrefs on backlink data. That's not our fight.
What we do focus on is keyword research and rank tracking built specifically for the Malaysian market. If you're targeting Malaysian keywords — in BM, English, or mixed — you need a tool that understands that landscape. Ahrefs is global. SapuSEO is local.
The smart move? Use Ahrefs (even the free version) for backlink checks. Use SapuSEO for keyword research and tracking your rankings in Malaysia.
You don't need to pick one tool for everything. You need the right tool for each job.
If you're curious, you can start a 7-day trial of SapuSEO for just RM2 and see how it handles your Malaysian keyword research. No commitment, no pressure. Just data you can actually use.
Because at the end of the day, knowing who links to your competitor is interesting. But knowing which keywords you can actually rank for in Malaysia? That's where the money is.