If you want to find the best free backlink checker tool, you will quickly notice a problem: most reviews just list features without proving them. In 2026, data accuracy matters just as much as the backlink count, yet many tools limit what you can see unless you upgrade.
To cut through the noise, I ran a controlled test. I selected rootxmedia.com on 11 June 2026 and ran it through 11 popular free backlink checkers. In this article, I will show you exactly how many backlinks and referring domains each tool found, which interfaces provided the most actionable data, and which free versions are actually useful for competitor research or analyzing your own backlink profile.
Testing Criteria
To ensure a fair comparison, I only used the free version or free trial of each tool. I evaluated them based on the following strict criteria:
- Total Backlinks Shown: How many actual backlinks does the free dashboard reveal before forcing an upgrade?
Referring Domains Found: How many unique linking domains does the tool identify? - Data Accuracy: How does the backlink count and referring domain count compare to industry benchmarks (like paid Ahrefs or Semrush)?
- Actionable Metrics: Does the dashboard provide useful extra data, such as domain trust scores, anchor text, first/last seen dates, or toxicity scores?
- Export Limitations: Can you export the data, or are you forced to copy-paste?
Note: I am not affiliated with any tool mentioned in this list. And the numbering below is alphabetical or by order of testing and does not represent a final ranking.
1. Semrush
I tested the free version of Semrush first. For the domain rootxmedia.com, Semrush reported 67 referring domains and 344 total backlinks.
The free overview dashboard is excellent. It provides a strong snapshot of authority score, outbound domains, backlink health, and found vs. lost links over time. However, the free version only shows up to 9 backlinks in the detailed list. You also face a daily search limit, making it less useful for bulk competitor research.
From an accuracy standpoint, Semrush is an industry benchmark. The data is solid and dependable, but the free tier is primarily designed to give you a quick overview, not a deep dive.
- Pros: High data accuracy, excellent overview dashboard.
- Cons: Limited to roughly 9 visible backlinks, strict daily search limits.
- Tool URL: https://www.semrush.com/
2. SE Ranking
For the same test domain, SE Ranking showed 164 backlinks and 44 referring domains. Notably, it showed all 164 backlinks for free, which is a significant advantage over Semrush and Ahrefs in this specific test.
The dashboard is robust, breaking data down into Overview, Backlinks, Referring Domains, Anchor Texts, Pages, and IPs. The backlinks tab provides granular details including domain traffic, page traffic, domain trust, page trust, anchor text, target URL, and first/last seen dates.
The referring domains tab is particularly useful for identifying which specific domains are passing the most link equity. The overview tab also allows you to check backlink toxicity for free—a feature many other tools lock behind a paywall.
- Pros: Shows the highest number of visible backlinks in this test, includes toxicity checks, strong dashboard filters.
- Cons: This is only free for 14 days trial and you can’t export backlink data. It found less backlink than Semrush.
- Tool URL: https://seranking.com/backlink-checker.html
3. Ahrefs
Ahrefs’ free backlink checker showed 20 backlinks for rootxmedia.com. While better than Semrush in terms of visible backlink count, it is still limited if you want a comprehensive backlink profile.
- Pros: Clean UI, highly reliable data metrics.
- Cons: Limited to 20 visible backlinks, lacks deeper filtering in the free tier.
- Tool URL: https://ahrefs.com/backlink-checker
4. Ubersuggest
The free version of Ubersuggest showed 21 URLs for our test domain. Compared to tools like SE Ranking and OpenLinkProfiler, it found fewer backlinks and referring domains. The dashboard does provide useful details like source page title, domain authority, page authority, spam score, and anchor text.
However, the free version is heavily restricted to one search per day, making it difficult to rely on for ongoing research.
- Pros: Good metric breakdown (DA, PA, Spam Score).
- Cons: Low backlink yield, one search per day limit.
- Tool URL: https://neilpatel.com/backlinks/
5. Moz Link Explorer
Moz showed 10 backlinks for rootxmedia.com The dashboard tracks follow links, linking domains, top pages, and discovered/lost links over time.
However, in the free version, it only showed around 8 to 10 backlinks. Compared to SE Ranking or BacklinkTool.org, the visible sample size is too small to conduct a full backlink audit or competitor analysis without upgrading.
- Pros: Strong historical metrics and domain authority tracking.
- Cons: Very limited free backlink visibility.
- Tool URL: https://analytics.moz.com/pro/link-explorer/overview
6. BacklinkTool.org
This tool showed 52 backlinks for the test domain. It provides a breakdown of total backlinks, referring domains, referring IP addresses, domain rating, and the percentage of nofollow vs. follow links.
While the interface is basic compared to Semrush, it showed a larger sample of backlinks than several other free tools on this list.
- Pros: Shows a decent volume of backlinks for free, simple interface.
- Cons: UI is dated, lacks advanced filtering options.
- Tool URL: https://www.backlink-tool.org/en/
7. Seobility Backlink Checker
Seobility showed up to 25 backlinks in the free version for our test domain. It displays link rating, link source, link anchor, and follow/nofollow status.
While it shows fewer total backlinks than SE Ranking, the interface is intuitive and provides a quick snapshot of domain rating and referring domains.
- Pros: Easy to use, clean presentation of anchor texts.
- Cons: Capped at 25 unique links.
- Tool URL: https://www.seobility.net/en/backlinkchecker/
8. OpenLinkProfiler
OpenLinkProfiler showed up to 100 backlinks for rootxmedia.com. It provides a lot of data, including broken backlinks, referring domains, domain rank, and semantic locations of links.
However, in my test, it seemed to count some links multiple times and does not offer an option to cluster backlinks by referring domain. If one website has multiple sitewide links, the data can feel inflated and messy.
- Pros: High backlink volume (up to 100), free access.
- Cons: Data can be messy, no domain clustering.
- Tool URL: https://openlinkprofiler.org/
9. RankWatch
RankWatch showed 3 backlinks and 31 referring domains for the test domain. The dashboard displays total backlinks, referring domains, total IPs, and toxic backlinks.
However, it found significantly fewer backlinks than SE Ranking or Semrush. The free view is restricted, making the data feel incomplete compared to the top-tier tools.
- Pros: Clean dashboard, includes toxic link metrics.
- Cons: Low backlink yield in the free version.
- Tool URL: https://www.rankwatch.com/backlinks
10. Linkody
Linkody claims to show up to 100 referring domains in its free version, but showed 43 backlinks for our test domain. It provides metrics like domain rating, unique IPs, and .edu/.gov links.
It also allows data export, which is a major plus for SEOs who need to manipulate data in spreadsheets.
- Pros: Allows data export, tracks .edu and .gov links.
- Cons: Some metrics feel less reliable than Ahrefs or Semrush.
- Tool URL: https://www.linkody.com/en/seo-tools/free-backlink-checker/
11. WebCEO
WebCEO showed up to 20 backlinks in its trial version. The dashboard is feature-rich, offering backlink history, lost backlinks, and competitor comparison graphs.
The main downside is that the free access is a 14-day trial, not a perpetually free tier. Once the trial expires, you lose access.
- Pros: Excellent competitor comparison graphs.
- Cons: 14-day trial limit, not a permanent free tool.
- Tool URL: https://www.webceo.com/backlink-checker-tool.htm
Which Free Backlink Checker Is Best?
Based on the raw data from testing rootxmedia.com on 11 June 2026, here is the objective breakdown:
- Best for visible backlink volume: SE Ranking and OpenLinkProfiler. SE Ranking showed 164 backlinks, far exceeding Semrush and Ahrefs in the free tier.
- Best for quick overviews: Semrush. The overview dashboard is visually superior, even if the visible backlink list is capped at 9.
- Best for data export: Linkody.
- Best overall free option: SE Ranking. It provided the highest number of visible backlinks, useful filters, backlink toxicity checks, and reliable data without forcing an immediate upgrade.
Conclusion
Free backlink checkers all have limitations, but some are vastly more useful than others. If you only need a quick overview of a domain’s authority, Semrush or Ahrefs will do the job.
However, if your goal is to see the highest number of actual backlinks and referring domains for free, SE Ranking is the strongest option from this test. It provided a large backlink sample, actionable filters, and a dashboard built for actual analysis.