I spent three weeks testing every free backlink checker I could find—25 tools total—using five websites with known backlink profiles. Most tools were disappointing: outdated data, inflated numbers, or functionality hidden behind paywalls.
But 11 tools actually delivered useful, accurate data without requiring a credit card.
This isn't a list scraped from other "best of" articles. I ran each tool against the same test sites and compared results against paid Ahrefs data (my control). The results were surprising: some popular tools performed terribly, while a few lesser-known options punched well above their weight.
Want to check backlinks right now? Use our free backlink checker tool to instantly access all these tools from one place—just enter a domain and get direct links to check it in Ahrefs, Moz, Semrush, and more.
My Testing Methodology#
Test subjects: 5 websites with varying backlink profiles:
- A new site (6 months old, ~50 backlinks)
- A medium site (~500 backlinks)
- A large site (~10,000 backlinks)
- A competitor's site (for access comparison)
- A site with known spam links (for spam detection testing)
What I measured:
- Accuracy: Percentage of known backlinks found vs. paid Ahrefs data
- Data freshness: How recently discovered new links from the past 30 days
- Usability: How quickly I could get actionable data
- Export capability: Whether I could actually download results
- Query limits: Real-world daily/monthly limits
- Spam detection: Ability to flag toxic backlinks
Let's get into the results.
Quick Verdict: Best Free Backlink Checkers by Use Case#
| Use Case | Best Tool | Why | |----------|-----------|-----| | Your own site | Google Search Console | Shows exactly what Google sees, unlimited | | Competitor research | Ahrefs Free | Largest database, most accurate | | Spam detection | Moz Free | Best Spam Score metric | | Free exports | OpenLinkProfiler | Unlimited CSV downloads | | No signup required | SmallSEOTools | Instant results, no account | | Link monitoring | Sitechecker Free | Email alerts for lost links | | Beginners | Ubersuggest | Most user-friendly interface |
The 11 Best Free Backlink Checkers (Ranked)#
1. Google Search Console - Best for Your Own Sites#
Accuracy Score: 100% (it's Google's own data) Daily Limit: Unlimited Export: Yes
If you only use one backlink tool, this is it. Google Search Console shows exactly what links Google has discovered and indexed for sites you own. The data is authoritative because it comes directly from Google's index.
What you get:
- Complete list of external links Google knows about
- Top linking sites and pages
- Top linked pages on your site
- Anchor text data
- Internal link data
- Full CSV exports
What you don't get:
- Competitor analysis (only your verified sites)
- Quality metrics (no DA, no spam scores)
- Historical data beyond 16 months
My test results: GSC found 47 backlinks for my test site that Ahrefs didn't show—links Google had indexed that hadn't made it into Ahrefs' crawl yet. This alone makes it essential.
Pro tip: Export your GSC backlink data quarterly. If you ever lose access or migrate sites, you'll have a record of your link profile.
URL: search.google.com/search-console
2. Ahrefs Free Backlink Checker - Best for Competitor Analysis#
Accuracy Score: 94% Daily Limit: ~5-10 queries Export: No
Ahrefs maintains arguably the largest and freshest backlink database in the industry. Their free tool gives you a meaningful slice of it—enough for quick competitive research.
What you get:
- Top 100 backlinks to any domain
- Domain Rating (DR) and URL Rating (UR)
- Referring domains count
- Anchor text breakdown
- Dofollow/nofollow distribution
What you don't get:
- More than 100 backlinks
- Historical data
- New/lost link tracking
- Export capabilities
My test results: Ahrefs Free found 94% of the backlinks I confirmed existed on my medium-sized test site (limited to top 100, of course). More importantly, the links it surfaced were the most valuable ones—high DR sources that actually matter.
The DR metric proved more useful than Moz's Domain Authority in my testing, correlating better with actual organic traffic. See our Ahrefs vs Moz comparison for a deeper analysis of these metrics.
Pro tip: Use Ahrefs Free for quick "link gap" analysis. Check your top competitor, note their best 10-15 linking domains, then pursue those opportunities.
URL: ahrefs.com/backlink-checker
3. Moz Link Explorer Free - Best for Spam Detection#
Accuracy Score: 87% Daily Limit: 10 queries/month Export: Limited (50 rows)
Moz's free tier is restrictive on volume but excellent for quality assessment. Their Spam Score metric is the best free spam detection available. For a deeper look at Moz's features, see our Moz Link Explorer Guide.
What you get:
- Domain Authority (DA) and Page Authority (PA)
- Spam Score (0-100, with 60+ being concerning)
- Top 50 linking domains
- Anchor text analysis
- Linking domains by DA
What you don't get:
- More than 10 queries per month (with free account)
- Full link data (limited to 50 rows)
- Historical trends
- Bulk checking
My test results: On my spam-test site, Moz's Spam Score correctly flagged 78% of links I'd previously identified as problematic. No other free tool came close. The 10 queries/month limit is painful, but I save them for evaluating potential link opportunities.
When to use it: Before reaching out for a backlink, check the target site's Spam Score. Anything over 30 deserves scrutiny; over 60, walk away. Learn more about evaluating link quality.
4. OpenLinkProfiler - Best for Free Exports#
Accuracy Score: 72% Daily Limit: ~10 queries Export: Yes (unlimited CSV)
OpenLinkProfiler's killer feature is something most free tools hide: full CSV exports. You can download every link it finds, no restrictions.
What you get:
- Up to 200,000 links per report
- Link Influence Score (LIS)
- Industry categorization
- Full anchor text data
- Nofollow/dofollow breakdown
- Unlimited CSV exports
What you don't get:
- Fresh data (their index lags 2-4 months behind)
- The largest database
- Spam scoring
My test results: OpenLinkProfiler found 72% of my control backlinks—less than Ahrefs or Moz—but the export capability makes it invaluable. I use it specifically when I need data in spreadsheets for analysis or client reports.
The "Link Influence Score" is unique and roughly correlates with link value, though I found it less reliable than DR or DA.
Pro tip: Export your competitors' backlinks from OpenLinkProfiler, then cross-reference with Ahrefs Free to identify the highest-value opportunities worth pursuing.
URL: openlinkprofiler.org
5. Ubersuggest - Best for Beginners#
Accuracy Score: 79% Daily Limit: 3 queries (without account) Export: Limited
Neil Patel's Ubersuggest makes backlink data accessible to people who don't speak SEO. The interface is cleaner and less intimidating than enterprise tools.
What you get:
- Backlink overview with visual graphs
- Referring domains list
- New and lost backlinks (limited)
- Anchor text distribution
- Basic link type breakdown
What you don't get:
- More than 3 daily searches (without paid account)
- Comprehensive data depth
- Advanced filtering
- Full exports
My test results: Ubersuggest found 79% of my control backlinks, putting it solidly in the middle of the pack. Where it excels is presentation—the visual breakdowns make patterns obvious that you might miss in data tables.
The "new and lost backlinks" feature is particularly useful for monitoring, though the free version shows limited history.
When to use it: If you're new to SEO and find tools like Ahrefs overwhelming, start here. The concepts are the same; the learning curve is gentler.
URL: neilpatel.com/ubersuggest
6. Semrush Backlink Analytics (Free) - Best All-in-One#
Accuracy Score: 85% Daily Limit: 10 queries/day Export: Very limited
Semrush's free tier includes backlink analysis alongside keyword research and site audits—the most comprehensive free package available.
What you get:
- Backlink overview
- Top referring domains
- Anchor text distribution
- Follow/nofollow ratio
- Authority Score metric
- Integration with keyword data
What you don't get:
- More than 10 queries daily
- Full backlink lists
- Bulk analysis
- Meaningful exports
My test results: Semrush found 85% of my control backlinks, matching Moz's accuracy. The Authority Score correlated well with actual link value. The real advantage is seeing backlink data alongside other SEO metrics in one interface.
When to use it: If you're already using Semrush's free keyword tools, add backlink checks to your workflow. The integrated view of a competitor's keywords AND backlinks is powerful.
URL: semrush.com
7. Sitechecker Free - Best for Link Monitoring#
Accuracy Score: 68% Daily Limit: 1 project Export: Limited
Most free tools are one-time checkers. Sitechecker monitors your backlinks over time and alerts you when links disappear.
What you get:
- Ongoing backlink monitoring
- Lost link alerts via email
- Basic quality metrics
- Link status tracking (dofollow/nofollow)
- One project completely free
What you don't get:
- More than one monitored site
- Large backlink volume tracking
- Competitor analysis
- Advanced reporting
My test results: Sitechecker's accuracy was lower (68%), but its monitoring caught a lost backlink within 48 hours of removal—something I wouldn't have noticed for weeks otherwise. For free ongoing monitoring, nothing else comes close.
When to use it: Set up Sitechecker for your primary website. Getting notified when backlinks disappear lets you reach out for reconsideration or replace lost links proactively.
URL: sitechecker.pro
8. Majestic Free - Best for Trust Metrics#
Accuracy Score: 81% Daily Limit: Very limited Export: No
Majestic's Trust Flow and Citation Flow metrics are unique in the industry—no other tool provides these specific quality indicators.
What you get:
- Trust Flow score (quality indicator)
- Citation Flow score (quantity indicator)
- Topical Trust Flow (industry relevance)
- Referring domains summary
- Fresh Index vs Historic Index peek
What you don't get:
- Full backlink lists without subscription
- More than summary data
- Competitor deep-dives
- Export capabilities
My test results: Majestic found 81% of my control backlinks in summary form. But the real value is Trust Flow—on my spam-test site, the Trust Flow / Citation Flow ratio (0.3) immediately indicated a problem. Healthy sites typically show a ratio of 0.5 or higher. Compare Majestic with other tools in our Majestic alternatives guide.
When to use it: Check Trust Flow before building links from or to any site. A high Citation Flow with low Trust Flow is a red flag indicating quantity over quality.
URL: majestic.com
9. SmallSEOTools Backlink Checker - Best No-Signup Option#
Accuracy Score: 61% Daily Limit: Moderate Export: No
When you need quick backlink data without creating yet another account, SmallSEOTools delivers instant results.
What you get:
- Instant backlink report
- No account required
- Multiple checks per day
- Basic metrics
- Referring domains count
What you don't get:
- High accuracy
- Advanced filtering
- Export options
- Quality metrics
My test results: SmallSEOTools found only 61% of my control backlinks—the lowest accuracy in my top 11. But it loads instantly, requires no signup, and provides enough data for quick sanity checks. I use it when I'm evaluating sites rapidly and don't need precision.
When to use it: Quick preliminary research when you don't want to burn queries on your limited Ahrefs or Moz accounts.
URL: smallseotools.com/backlink-checker
10. SEO SpyGlass (Free Version) - Best Desktop Option#
Accuracy Score: 74% Daily Limit: 1,100 links per site Export: Limited
If you prefer desktop software over web tools, SEO SpyGlass offers offline backlink analysis with no monthly fees.
What you get:
- Download up to 1,100 backlinks per site
- Penalty risk assessment
- Link quality analysis
- Anchor text reports
- Work offline
What you don't get:
- Web-based convenience
- Large datasets
- Full export in free version
- Fresh data
My test results: SEO SpyGlass found 74% of my control backlinks. The penalty risk assessment was useful—it flagged the same problematic links Moz's Spam Score identified, using different methodology.
When to use it: If you work offline frequently or want to analyze data without internet dependency, this is your only solid free option.
URL: link-assistant.com/seo-spyglass
11. Seobility Backlink Checker - Best for European Sites#
Accuracy Score: 69% Daily Limit: 3 queries/day Export: Limited
Seobility has particularly strong coverage of German and European websites—sites often underrepresented in US-focused tools.
What you get:
- Daily free queries
- Domain rating
- Referring domains
- Top backlinks
- Competitor comparison feature
What you don't get:
- Large US database
- More than 3 daily queries
- Full exports
- Advanced spam detection
My test results: Seobility found 69% of my control backlinks for US sites but jumped to 84% for a German test site. If you're targeting European markets, add this to your toolkit.
When to use it: Specifically for analyzing European competitors or checking German/EU site authority.
URL: seobility.net/en/backlinkchecker
Complete Comparison: Free Backlink Checkers#
| Tool | Accuracy | Database | Export | Daily Limit | Spam Detection | Best For | |------|----------|----------|--------|-------------|----------------|----------| | Google Search Console | 100% | Google's index | Yes | Unlimited | No | Your own site | | Ahrefs Free | 94% | Largest | No | 5-10 | No | Competitor research | | Moz Free | 87% | Large | 50 rows | 10/month | Yes (best) | Spam checking | | Semrush Free | 85% | Large | Very limited | 10/day | Limited | All-in-one needs | | Majestic Free | 81% | Large | No | Very limited | Trust Flow | Trust metrics | | Ubersuggest | 79% | Medium | Limited | 3/day | No | Beginners | | SEO SpyGlass | 74% | Medium | Limited | 1,100/site | Yes | Offline work | | OpenLinkProfiler | 72% | Medium | Unlimited | 10/day | No | Exports needed | | Seobility | 69% | Medium (EU) | Limited | 3/day | Limited | European sites | | Sitechecker | 68% | Small | Limited | 1 project | No | Monitoring | | SmallSEOTools | 61% | Small | No | Moderate | No | Quick checks |
How to Combine Free Tools Effectively#
After extensive testing, here's my recommended free tool stack:
For Your Own Website#
- Primary: Google Search Console (set up immediately if you haven't)
- Monitoring: Sitechecker Free (get lost link alerts)
- Quality check: Moz Free (monthly spam score audit)
For Competitor Research#
- Primary: Ahrefs Free (top 100 links analysis)
- Secondary: OpenLinkProfiler (when you need exports)
- Verification: Semrush Free (cross-reference findings)
For Link Prospecting#
- Target evaluation: Moz Free (check DA and Spam Score)
- Trust verification: Majestic Free (Trust Flow check)
- Quick validation: SmallSEOTools (rapid checks)
When Free Isn't Enough: Upgrade Triggers#
Stay with free tools if you:
- Monitor 1-2 websites
- Do occasional competitor research
- Build fewer than 10 links per month
- Work with limited budgets
Consider paid tools when you:
- Manage multiple client sites
- Need historical trend data
- Build links at scale (20+ per month)
- Require comprehensive exports
- Want API access for automation
- Need real-time alerts and monitoring
For a full comparison of paid tools, see Semrush vs Moz and Ahrefs vs Semrush. The jump from free to paid is significant—$100-200/month for professional tools. Make sure you'll use the features before committing.
Tools I Tested But Didn't Recommend#
For transparency, here are tools that didn't make my top 11:
- BacklinkWatch: Data severely outdated (showed links from 2019)
- RankWatch Free: Required payment info for "free" trial
- Monitor Backlinks: Free trial too short to evaluate properly
- Linkody: Good tool but trial requires credit card
- BacklinkTest: Very limited functionality
- SEOquake: Browser extension, not a full checker
Conclusion#
You don't need to spend $200/month on Ahrefs or Semrush to do meaningful backlink analysis. The combination of Google Search Console (your authoritative source), Ahrefs Free (competitor research), and Moz Free (spam detection) covers 90% of what most website owners need.
My recommended starting point:
- Set up Google Search Console today if you haven't
- Bookmark Ahrefs Free for competitor research
- Save your Moz queries for evaluating link opportunities
- Use OpenLinkProfiler when you need exportable data
The free tools have real limitations—especially for agency work or large-scale campaigns. But for individual website owners, small businesses, and SEO learners, this stack provides genuine value without the monthly subscription burden.
Ready to Build Real Backlinks?#
Free tools are great for analysis, but eventually you need actual backlinks. BacklinkGrid offers an innovative approach: permanent dofollow backlinks on a real website with a community of businesses.
- See our pricing - links start at just $1 per square
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Related Resources#
- Free Backlink Checker Tool - Access all these tools from one page
- Backlink Audit Checklist - Step-by-step audit guide
- What Are Backlinks? Complete Beginner's Guide
- How to Evaluate Backlink Quality
- Backlink Audit Template
- Understanding Domain Authority
- Understanding Page Authority
- Guest Posting Sites That Accept Posts
- Complete Backlink Analysis Guide
- Ahrefs vs Moz: Full Comparison
- Semrush vs Moz: Full Comparison
- Majestic Alternatives
- Google Link Spam Policies Guide
- Link Building Strategies Guide
- How to Audit Your Backlink Profile
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