Every backlink tool promises to show you the links pointing to a site. None of them can show you all of them. Each runs its own crawler and builds its own index, which is why a domain can show 5,000 links in Ahrefs, 2,000 in Moz, and 1,500 in Google Search Console without any of them being wrong.
That reality shapes how you should choose a backlink checker. The question is not which tool is “most accurate”—none of them are complete. The question is which tool matches the job you are doing: auditing your own links with first-party data, spot-checking a competitor, screening for toxic patterns, or tracking a link profile over time.
This guide compares 15 of the leading SEO tools for checking backlinks in 2026, separates their genuine free allowances from their marketing claims, and provides a practical workflow for combining them.
Key Takeaways
- Google Search Console is the only source that shows links Google itself has found—but only for sites you verify, and only a sample. Its report is not exhaustive, and it shows no authority metrics.
- Ahrefs remains the gold standard for backlink data depth. Its free tools split into two products: Ahrefs Webmaster Tools (1,000 backlinks visible at once, 5,000 crawl credits/month, verified sites only) and the Ahrefs Free Backlink Checker (a capped sample on any domain).
- Semrush is the stronger choice for agencies that want backlink audits inside a broader SEO suite. A free account allows 10 requests a day with truncated results.
- Majestic is the historical-data specialist. Plans start at $49.99 per month** (or **$41.67 equivalent on annual billing), and its historical index goes back further than most competitors.
- Moz Link Explorer is the most accessible starting point. A free account allows 10 queries a month, and Moz Pro starts at $99 per month.
- No single tool is “most accurate.” Authority metrics like Domain Rating, Domain Authority, and Authority Score are each company’s own estimate. Google does not use any of them as ranking factors.
The 15 Best Backlink Checkers in 2026
1. Ahrefs
Ahrefs remains the strongest overall backlink intelligence tool in 2026. Its backlink database, referring-domain reports, and backlink profile views are unmatched in depth, and its crawl freshness means new links are indexed quickly. Paid plans start at $29 per month for Starter and scale to $1,499 per month for Enterprise.
Its free offering is split into two products:
- Ahrefs Webmaster Tools (AWT): For verified site owners, providing access to Site Explorer data with 1,000 backlinks visible at once and 5,000 crawl credits per month.
- Ahrefs Free Backlink Checker: For any domain, no account required, returning Domain Rating, URL Rating, and a capped sample of top links.
Best for: Serious SEOs, agencies, and anyone whose primary job is link intelligence.
2. Semrush
Semrush is more of a marketing suite than a pure backlink tool, but that is precisely its strength for agencies. Backlink audits sit inside the same dashboard as rank tracking, site audits, and competitor analysis.
A free account allows 10 requests a day with truncated results. Paid plans start at $139.95 per month for the Pro plan, which includes 5 projects, 500 tracked keywords, and backlink analytics.
Best for: Agencies that want link checking bundled with the rest of their SEO workflow.
3. Moz Link Explorer
Moz Link Explorer remains the most accessible starting point for beginners. Its Domain Authority metric is widely understood, and its Spam Score flags risky links faster than most competitors. A free Moz Community account allows 10 Link Explorer queries a month, and Moz Pro starts at $99 per month.
Best for: Beginners, small teams, and anyone whose priority is spam screening rather than comprehensive link discovery.
4. Majestic
Majestic is the historical-data specialist. Its Trust Flow and Citation Flow metrics remain the reference point for link-specific analysis, and its historical index goes back further than most competitors. Plans start at $49.99 per month, or $41.67 equivalent on annual billing, with a Pro tier at $99.99 per month.
Best for: Link-specific research, historical analysis, and anyone who needs to see how a profile has changed over time.
5. SE Ranking
SE Ranking is the strongest budget-tier suite for solo SEOs and small teams. It bundles backlink monitoring with core SEO features at a $129 per month entry price (or $103.20 on annual billing), well below the enterprise suites. The Core plan includes 10 projects and 2,000 keywords.
Best for: Solo operators and small in-house teams that need monitoring without enterprise pricing.
6. Google Search Console
Search Console is the only free source that shows links Google itself has discovered. It works only for properties you have verified. The Links report shows top linked pages, top linking sites, and top linking anchor text, all of which are exportable.
The report shows a sample of the links Google knows about, not an exhaustive list. Tables stop at 1,000 rows, and the report provides no authority metrics. However, it remains the most trustworthy data you can get for your own site.
Best for: The first-party baseline for your own domain.
7. Ubersuggest
Ubersuggest is the budget option for quick, free checks. A free account allows 100 backlinks per site and 40 searches a day. Its data is licensed from Moz, so the link index is shallower than Ahrefs’ or Semrush’s, but it is a useful third data point when you want to confirm whether a link appears in multiple indexes.
Best for: Quick competitor checks and confirming whether a link shows up across multiple sources.
8. Serpstat
Serpstat is an all-in-one SEO platform that includes a robust backlink analysis module. It provides data on referring domains, anchor texts, and lost links, alongside keyword research and competitor analysis.
It offers a free plan with heavily limited queries. Paid plans start around $59 per month (billed annually) for the Lite plan, which includes backlink analysis for up to 5,000 links per day. It is a strong middle-ground option for agencies that want a suite but find Semrush too expensive.
Best for: Budget-conscious agencies that need a full SEO suite with daily backlink data.
9. SpyFu
SpyFu is the competitor-research specialist. It combines backlink searches with an archive of competitor ad history and keyword data, which makes it useful for understanding how a competitor built both their organic and paid visibility. Plans start at $39 per month.
Best for: Competitor research where backlinks are one part of a broader competitive intelligence picture.
10. SEO Review Tools
SEO Review Tools is a free web-based suite that includes a basic backlink checker. It allows you to check the Domain Authority, Page Authority, and the number of backlinks for any URL.
The tool is completely free to use without an account, but it relies on third-party APIs (like Moz) for its data. It will not give you a comprehensive list of every backlink, but it is excellent for a rapid, no-signup snapshot of a site’s overall authority.
Best for: Quick, free authority checks when you do not want to create an account.
11. Monitor Backlinks
Monitor Backlinks is built specifically for watching a link profile over time. It provides daily notifications of new and changed links, which is the core function a monitoring tool needs. Pricing starts at around $20.75 per month, with a free tier available.
Best for: Anyone whose priority is catching link losses and changes quickly rather than doing deep link prospecting.
12. LinkMiner (Mangools)
Mangools LinkMiner is part of a low-cost SEO suite that includes keyword research and SERP analysis. It shows 100,000 backlink rows a month on the Basic plan, which starts at $38 per month, and its data is sourced from Majestic. It is a practical option for bloggers and small teams that want solid link data without a premium price.
Best for: Bloggers, affiliate marketers, and small teams that want backlink data bundled with keyword tools at a low price.
13. CognitiveSEO
CognitiveSEO offers backlink analysis as part of a broader SEO toolkit that includes site audits, rank tracking, and content optimization. Plans start at $129.99 per month for Starter (or $89 per month billed annually), and its backlink data is now sourced from Majestic.
Best for: Teams that want backlink analysis alongside content and audit tools in a single mid-priced platform.
14. RankWatch
RankWatch combines rank tracking with backlink monitoring. The Medium plan at $29 per month includes monitoring for up to 145,000 backlinks and automated alerts, which makes it one of the few budget options that treats monitoring as a first-class feature rather than an add-on.
Best for: Small agencies and in-house teams that need rank tracking and backlink monitoring in one affordable dashboard.
15. Small SEO Tools
Small SEO Tools is a free online utility aggregator. Its backlink checker allows you to input a URL and domain to see basic metrics, including the total number of backlinks, referring domains, and the authority of the linking pages.
It is entirely free and requires no registration. However, because it is a free utility, the data is often limited to a specific sample (usually 100 to 200 backlinks) and does not update as frequently as a paid crawler. It is best used for a quick, preliminary look before moving to a more robust platform.
Best for: Beginners looking for a free, no-login way to grab a quick snapshot of a domain’s link profile.
How to Choose the Right Tool
The right choice depends on three questions.
Are you checking your own site or someone else’s? For your own site, start with Google Search Console and Ahrefs Webmaster Tools. For competitors, use Ahrefs Free, Semrush Free, Moz, Ubersuggest, or SEO Review Tools.
Do you need depth or a snapshot? If you are auditing a full link profile for toxic links, you need a paid plan or a verified-site free tool. If you are spot-checking a competitor’s strongest links, the free checkers are sufficient.
Do you need a suite or a specialist? If backlink checking is one part of a broader SEO workflow, Semrush, SE Ranking, Serpstat, or CognitiveSEO will reduce tool-switching. If links are the whole job, Ahrefs or Majestic are the stronger specialists.
What to Check Before You Rely on Any Backlink Tool
A few practical checks will save you from drawing the wrong conclusions.
- Confirm whether the tool works on any site or only verified sites. Google Search Console and Ahrefs Webmaster Tools are verified-site only. Most other tools work on any domain, with caps.
- Match the sample size to your question. A 100-link sample is enough to spot patterns. It is not enough to audit a full profile for toxic links.
- Use one tool consistently for growth tracking. Because counts vary between crawlers, switching tools mid-campaign makes growth look like noise.
- Read authority metrics as comparisons, not verdicts. Domain Rating, Domain Authority, and Authority Score are each company’s own estimate. Google does not use any of them as ranking factors.
- Assume free-tier terms will change. The limits cited here were checked in October 2026. Vendors adjust caps regularly.
The Bottom Line
Checking backlinks in 2026 is not a single-tool task. It is a workflow.
Start with Google Search Console for the most authoritative free view of your own links, accepting that it shows a sample. Add Ahrefs Webmaster Tools for the deepest free audit of your own profile. Use Ahrefs Free, Semrush Free, Moz, and Ubersuggest as capped samples for competitor research, and treat the overlap between them as your signal.
If you need a full suite, Semrush, SE Ranking, Serpstat, or CognitiveSEO bundle link checking with the rest of your SEO work. If links are the whole job, Ahrefs and Majestic are the stronger specialists. And if you need monitoring rather than checking, RankWatch and Monitor Backlinks treat alerts as a first-class feature.
No free tool will show you the whole link graph, because no crawler sees the whole web. The discipline is in combining partial views and acting on the overlap. That is what separates a real backlink research process from a tool screenshot.
