Backlinks are still one of the biggest ranking factors in Google, and you cannot build a solid link strategy without knowing where your links are coming from, who is linking to your competitors, and which links are hurting rather than helping. The right backlink checker tool gives you all of this in one place. This guide covers the eight best backlink checker tools in 2026, tested and compared across database size, pricing, key features, and best use cases. Whether you are an SEO agency, a freelancer, or a business owner managing your own rankings, there is a tool on this list that fits your needs and budget. We also cover how Linkscope’s own free tools fit into your backlink analysis workflow.
- Ahrefs is the most trusted backlink checker overall, with the deepest index and the most accurate data
- Semrush has the largest raw database (43 trillion links) and the best all-in-one feature set
- Moz is the best option for beginners thanks to its simple interface and DA/PA metrics
- SE Ranking offers the best value for agencies needing affordable backlink analysis at scale
- Majestic is the specialist choice for deep link analysis using Trust Flow and Citation Flow
- Linkscope’s free tools let you check DA, DR, and backlink data without a paid subscription
You cannot build a smart link building strategy if you do not know what your backlink profile looks like. Which sites are linking to you? Which links are hurting your rankings? What backlinks does your top competitor have that you do not? These are the questions a good backlink checker answers in seconds.
The problem is there are dozens of tools claiming to do this. Some have massive databases but terrible UX. Others are affordable but give you a tiny slice of the data you actually need. We have tested the major options and broken them down honestly so you can pick the right tool for your situation.
Quick Comparison: Best Backlink Checker Tools
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1. Ahrefs: Best Overall Backlink Checker
Ahrefs is the tool most SEOs reach for first when they need backlink data. In a survey of link builders conducted by Editorial.Link, 68.1% of respondents named Ahrefs as the most accurate and comprehensive backlink data provider on the market. That level of trust is earned.
The live index holds approximately 35 trillion external backlinks from 494 million domains, refreshed every 15 to 30 minutes. That means when a new link goes live pointing to your site (or to a competitor), Ahrefs catches it fast.
What makes Ahrefs stand out
The Site Explorer is the centrepiece. Enter any domain or URL and you get a complete picture: total backlinks, referring domains, Domain Rating (DR), URL Rating (UR), estimated organic traffic, and keyword rankings. The filtering system is genuinely powerful. You can isolate dofollow links only, filter by language, sort by traffic, and narrow results to contextual in-content links specifically.
The Link Intersect tool is one of the best features for link building. Enter your domain alongside up to ten competitors and Ahrefs shows you every site that links to them but not to you. These are warm prospects already proven to link in your space. Our Ahrefs alternatives guide covers what to consider if the pricing is a concern.
Key features
- Historical index dating back to 2013 for deep backlink forensics
- Batch analysis of up to 1,000 URLs for large-scale prospect vetting
- Daily new and lost link alerts via email
- Best Links filter highlights the highest-authority links automatically
- Content Explorer and Keyword Explorer integrated in the same platform
- Largest active crawler after Google
- Most accurate and up-to-date backlink data
- Excellent UI and filtering system
- Strong competitor analysis tools
- No free trial, limited free tools only
- Overages billed automatically if caps not set
- Historical data beyond 6 months requires higher plan
- Expensive for individuals and small teams
Pricing: Starts at $108/month (annual billing). Plans go up to Enterprise level.
2. Semrush: Largest Database, Best All-in-One
Semrush claims the largest backlink database of any mainstream tool, with 43 trillion links from 390 million domains. The index refreshes every 15 minutes for new links, making it one of the fastest at detecting link changes alongside Ahrefs. Compare how these two stack up in our Ahrefs vs Semrush comparison.
Where Semrush pulls ahead is in breadth. It is not just a backlink checker. It covers keyword research, rank tracking, technical audits, PPC analysis, content marketing, and social media management in one platform. If you want a single subscription that covers your entire SEO workflow, Semrush is the strongest case.
What makes Semrush stand out
The Backlink Gap report lets you compare up to five competitors side-by-side and immediately flags the domains linking to all of them but not to you. The Backlink Audit tool scores every link in your profile for toxicity and produces a ready-to-submit disavow file in one click. The Network Graph clusters domains by shared IP blocks, which is useful for detecting PBN link patterns.
Key features
- Authority Score and Toxicity Score combo for link quality and risk assessment
- One-click disavow export for penalty recovery
- New and lost link alerts for campaign tracking
- Traffic Analytics add-on (comparable to SimilarWeb)
- Full digital marketing platform beyond SEO
- Largest backlink database available
- Best all-in-one platform for agencies
- Strong toxicity and disavow workflow
- Free account available (limited daily reports)
- Backlink Gap limited to five competitors at a time
- Some users report slower new link discovery vs Google Search Console
- Batch analysis capped at 200 URLs on most plans
Pricing: Starts at $129.95/month. A free account with limited daily reports is available.
3. Moz Pro: Best for Beginners and DA/PA Metrics
Moz has been around longer than most tools on this list and it has earned its place through reliability and trust. Its Domain Authority (DA) and Page Authority (PA) metrics are the most widely recognised authority scores in SEO, used across the entire industry as a standard benchmark for evaluating link quality.
The link index has grown substantially in recent years and now sits at 45.5 trillion links across one billion domains, making it technically the largest database by raw size. Updates happen every three days on average, which is slower than Ahrefs or Semrush but sufficient for most backlink auditing and monitoring workflows.
What makes Moz stand out
The Link Intersect feature is one of the cleanest implementations of competitor gap analysis available. Enter up to five competitors alongside your domain and Moz shows you exactly which referring domains are linking to your rivals but not to you. The Spam Score metric gives each link a risk rating based on shared patterns with sites that have received Google penalties, making it easier to identify potentially toxic backlinks without manual review.
Key features
- Industry-standard DA and PA metrics
- Spam Score for quick toxicity assessment
- Link Intersect for competitor gap analysis
- Anchor text distribution chart
- Side-by-side domain comparison for up to four sites
- Easiest interface for beginners
- Universally recognised DA/PA metrics
- Useful Spam Score for link vetting
- Affordable entry plan at $49/month
- Slower link discovery than Ahrefs or Semrush
- Starter plan limited to 75 backlink queries per month
- Shallower historical depth than competitors
Pricing: Starts at $49/month with a 7-day free trial. Standard plan ($99/month) recommended for active link building.
4. SE Ranking: Best Value for Agencies
SE Ranking is frequently underestimated because most people still think of it primarily as a rank tracker. In reality it is a full SEO platform with a backlink index of 2.9 trillion links from 400 million domains, refreshed multiple times per day. For many searches, users report finding more referring domains than Ahrefs returns. See how it compares to other tools in our DA/PA checker tools roundup.
What makes SE Ranking particularly strong for agencies is the pricing model. It scales based on usage rather than a flat rate, which means you only pay for what you actually use. The white-label report builder, custom access permissions for team members, and the ability to set up multiple client projects make it a natural fit for agencies managing link building campaigns across many clients.
Key features
- Proprietary Domain Trust and Page Trust metrics
- Backlink Gap Analyzer for up to five competitor comparisons
- Daily monitoring with new and lost link alerts
- Four-level toxicity scoring with one-click disavow export
- Real-time backlink status checker as an add-on feature
- Best value pricing for agencies
- Excellent white-label report builder
- Generous limits even on lower plans
- Strong daily monitoring alerts
- Smaller index than Ahrefs or Semrush
- Pricing system is not immediately straightforward
- Fewer advanced filters for deep prospecting
Pricing: Starts at $55/month with a 14-day free trial available.
5. Majestic: Best for Deep Link Intelligence
Majestic is the only tool on this list that is exclusively focused on backlink analysis. It does not try to be a rank tracker, keyword tool, or content platform. It does one thing and it does it at a deep level that generalist tools cannot match.
The dual database approach is what sets Majestic apart. The Fresh Index (updated daily) and Historic Index (covering links discovered over many years) together contain roughly 21 trillion backlinks. The Historic Index in particular gives you a record of links that no longer exist, which is invaluable for link reclamation campaigns and understanding how a site’s authority has evolved over time.
What makes Majestic stand out
Trust Flow and Citation Flow are Majestic’s proprietary metrics and they are widely used across the industry even by SEOs who do not use Majestic as their primary tool. Trust Flow measures link quality based on proximity to trusted seed sites. Citation Flow measures link volume. Together they give you a quick read on whether a site’s authority is earned or inflated. The Topical Trust Flow metric also shows you the thematic focus of any site’s link profile, which is useful for assessing topical relevance before pursuing a placement.
Key features
- Trust Flow and Citation Flow for quality vs. volume link assessment
- Topical Trust Flow for thematic relevance analysis
- Link Context showing exact on-page placement of every backlink
- Clique Hunter (equivalent of Link Intersect for competitor gap analysis)
- Bulk Backlink Downloader for offline filtering and custom analysis
- Unmatched depth of link intelligence
- Trusted proprietary metrics used industry-wide
- Fresh and Historic indexes in one platform
- Most affordable specialist tool at $49.99/month
- Dated interface compared to modern tools
- No rank tracking, keyword research, or other SEO tools
- No real-time new/lost link alerts
- Can assign inaccurate TF/CF scores occasionally
Pricing: Lite plan starts at $49.99/month. Historic Index access requires the Pro plan at $99.99/month.
6. Serpstat: Best for Visual Backlink Analysis
Serpstat has improved significantly over the last few years and it now offers a compelling all-in-one package for SEOs who want good backlink data alongside strong data visualisation features. Its backlink index is smaller than the top three tools on this list, but the graphs and charts it produces make it easier to spot patterns and trends at a glance.
The referring pages over time graph, new vs. lost backlinks chart, and anchor text distribution visualisations are genuinely useful for presenting backlink data to clients who are not deeply technical. If you manage stakeholder reporting as part of your role, Serpstat is worth considering.
- Best data visualisations of any tool on this list
- All-in-one SEO platform at a mid-range price
- Free account available with daily credits
- Smaller backlink index than competitors
- UI is less intuitive than Ahrefs or Moz
- Less effective for deep prospect research
Pricing: Starts at $69/month with a 20% discount on annual plans. Free account available.
7. SEO SpyGlass: Best Free Option and Desktop Alternative
SEO SpyGlass is part of the SEO PowerSuite desktop toolkit and it is the strongest free option on this list by a significant margin. Unlike every other tool here, it is downloaded and run as a desktop application rather than accessed through a browser. This is actually its key advantage: the desktop model allows SEO PowerSuite to offer much more generous feature access at a fraction of the cost of cloud-based tools.
The backlink data comes from Webmeup’s index, which is one of the largest available. The crawler visits 7.1 billion web pages daily and claims to find new backlinks faster than any other tool. The Penalty Risk metric is a particularly useful feature: it flags potentially toxic backlinks automatically so you can prioritise your disavow decisions without manually reviewing every link.
- Most generous free plan on this list
- Annual pricing much lower than cloud tools
- Penalty Risk analysis built in
- Large, fast-updating backlink index
- Requires download, not browser-based
- Free version limited to 1,100 backlinks per check
- Less suited to remote and collaborative team workflows
Pricing: Full free version available. Professional plan at $349/year. Enterprise at $599/year.
8. Ubersuggest: Best Entry-Level Option
Ubersuggest is the most approachable tool on this list and is specifically designed for people who are new to SEO or running small personal projects. The interface is simple, the data is presented in plain language, and the pricing is among the lowest available. It also offers a lifetime deal option which is unusual in this category.
The backlink index appears to be powered by Moz’s API, based on consistent matching of referring domain counts between the two tools across tested domains. This means data reliability is solid but the depth of analysis is more limited than dedicated backlink tools. The Backlink Opportunities report, which shows who links to competitors but not to you, is a useful starting point for link building even if the filtering options are basic compared to Ahrefs or Semrush.
- Lowest paid pricing on this list
- Lifetime deal available
- Easiest learning curve
- Historical backlink data included
- Only 1 free search per day on free plan
- No proprietary authority metrics
- Limited backlink filtering options
- Not suitable for agency-scale work
Pricing: Plans start at $29/month. Lifetime deal available. 7-day free trial included.
What to Look For in a Backlink Checker Tool
Before choosing a tool, it helps to know which features actually matter for your specific use case. Here is what to prioritise based on what you are trying to do:
For a broader view of how these fit into your workflow, our link building tools roundup covers the full stack of tools used in a professional link building campaign. And our how to check backlink quality guide explains what to actually look at once you have the data from any of these tools.
Check Backlink Metrics Without a Paid Subscription
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Why Backlink Monitoring Matters as Much as Analysis
Most people use backlink checker tools reactively: they check their profile when something goes wrong or before starting a campaign. The smarter approach is ongoing monitoring. Links get removed, sites go down, and competitors build new links every week. Staying on top of these changes gives you a real-time picture of your link profile health.
Every tool on this list offers some form of new and lost link alerts. Setting these up takes five minutes and ensures you never miss a significant change to your backlink profile. Our backlink monitoring guide covers how to set this up systematically across whichever tool you choose.
