Referring Domains Tool: Track Unique Domains Linking to You
Enter any domain and see how many unique websites link to it in seconds, plus how that number has trended, so you can track real link profile growth.
5 credits per run. 20 free credits when you sign up, no credit card required.
Referring Domains Tool · example
Example| Item | Signal | Priority |
|---|---|---|
| Example opportunity A | Strong | High |
| Example opportunity B | Growing | High |
| Example opportunity C | Steady | Medium |
| Example opportunity D | Weak | Low |
Example result with sample data. Yours uses live data for your inputs.
How it works
From your input to a prioritised list of fixes in under a minute.
- Step 1
Enter your details
Your website, business or the item you want checked. Nothing to install.
- Step 2
We run live checks
Brainito fetches live data and tests it against the rules that matter.
- Step 3
Fix what matters first
Clear results with what to fix, in order of impact, and where to go next.
What you get
What the result tells you, and why it is worth the minute it takes.
Count Unique Linking Domains
One number that matters more than raw backlink totals: how many distinct sites link to you.
Spot Growth and Drops
Trend data shows whether your link profile is expanding, staying flat, or quietly losing domains.
Compare Any Two Sites
Check your domain and a rival's back to back to see who is earning new links faster in 2026.
The guide
What the referring domains tool does, how to use it, and what to do with the result.
A referring domains tool counts how many unique websites link to a domain, not just the total number of backlinks. That distinction matters, because fifty links from one site carry less weight than links from fifty different sites. The tool lists each linking domain with its authority and link count, giving you a clean picture of link diversity and a quick way to benchmark your backlink footprint against competitors.
What the Referring Domains Tool Reports
Enter a domain and the tool returns the list of unique sites linking to it, along with how many links each one contributes. You see the authority of every referring domain, whether the links are follow or nofollow, and often the trend in domains gained or lost over time. Separating referring domains from raw backlink counts reveals the true breadth of a link profile, since a high backlink number can hide a narrow set of sources. The report gives you both the headline count and the underlying detail, so you can judge not just how many sites link out but how strong and varied they are.
Who Links to My Website? How to Find Out
Enter your own domain and the tool lists the unique websites that link to you, with the number of links each one sends and its authority. Sort by authority to see your strongest supporters first. Look for links you did not know about, such as a review, a supplier page or a local news story, and thank or build on them. Look for sites that look like spam too, since a sudden run of them can be worth a closer look. Then run a competitor's domain to see who links to them but not to you.
How to Act on Your Referring Domains
Start by checking your diversity, because a profile leaning on a few domains is more fragile than one spread across many. If most links trace back to a handful of sources, prioritize earning links from new, unrelated sites to broaden your footprint. Watch for lost referring domains too, since a dropping count can signal removed links worth recovering. Compare your list against a competitor's to spot domains linking to them but not you, which become clear outreach targets. Over time, aim for steady growth in relevant, authoritative referring domains rather than chasing a bigger raw backlink number that adds little real weight.
Who Relies on Referring Domain Data
SEO professionals use referring domain counts as a headline metric for off-page health, since it correlates more closely with rankings than total backlinks. Agencies report it to clients because it tells a clear growth story that is hard to inflate. Link builders track it to confirm their outreach is adding genuinely new sources rather than repeat links from the same sites. Competitive analysts use it to size up rivals quickly, comparing how many distinct sites vouch for each domain. Anyone judging the real strength of a backlink profile, rather than a vanity link total, will lean on this measure first.
Frequently asked questions
Something else? Email support@brainito.com
Why do referring domains matter more than backlinks?
Ten links from ten different sites usually signal more trust than a hundred links from one site. Search engines weigh the diversity of your linking domains heavily, so this count is a strong indicator of authority.
What counts as a referring domain?
A referring domain is a unique website that links to the site you check at least once. If the same blog links to you from five different articles, it still counts as one referring domain in your total.
How do I see who links to my website?
Enter your domain in the Referring Domains Tool. It lists every unique site linking to you that it finds, with how many links each one sends, so you can see your strongest linking sites and spot new or lost ones.
Is the Referring Domains Tool free?
It is free to try. Every new Brainito account comes with 20 free credits, and each run costs 5 credits. You can check your own site or any other domain as often as you like once you are signed in.
Where to go from here
The referring domains tool answers one question. These are the next ones worth asking.
See how many unique domains link to any site in seconds
One account unlocks the referring domains tool plus 320+ marketing tools, weekly audits and your action plan.
- 20 free credits when you sign up
- 5 credits per run
- No credit card required