Who links to them, by strength
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referring domains
Each dot is one referring domain. Most sites get most links from weaker domains on the left; the few on the right carry the weight.
New · monthly release
Every site that links to any domain, in one API.
The full list of referring domains for any site, strongest first, each with its Open Authority and rank. Check one site or hundreds in a run, from the Common Crawl web graph of 2.15 billion links, rebuilt every month.
Independent tool, not affiliated with Common Crawl. Public data only.
2.15Bdomain-to-domain links
133Mdomains in the graph
OA 0–100on every referring domain
full listsstrongest first
2–13 stypical run
Live data
Referring domains, from this month's release.
Real profiles from the latest release: how many domains link in, how strong they are, and who the strongest are. Your run returns the same lists.
Referring domains
17.35Mfacebook.com, for scale
Referring-domain profile
Every referring domain by Open Authority ( shown)
Rings = the 10 strongest. Hover or tab to them for names; the same 10 are listed below.
Referring domains by quality
Top 20 referring domains
| # | referring domain | OA |
|---|---|---|
What you get
One row per referring domain, strongest first.
Each row is one domain that links to the site you asked about, ranked by its Open Authority. Ready to sort, filter by strength and drop into a spreadsheet or outreach tool.
| field | type | what it tells you |
|---|---|---|
domain | string | The site you asked about. |
position | integer | Place in the list, 1 = the strongest referring domain. |
referringDomain | string | A domain that links to domain. |
referringDomainAuthority | integer 0–100 | Its Open Authority. OA 60+ ≈ top 150,000 domains of the web, OA 80+ ≈ top 5,000. |
referringDomainRank | integer | Its position among all 133M domains, 1 = most central. |
referringDomains | integer | How many domains link to domain in total, on every row for easy grouping. |
ccRelease | string | The Common Crawl release the list comes from, e.g. cc-main-2026-jul-aug-sep. |
Use cases
Built for people who earn links.
Backlink audits
See every domain that links to a site, how strong each one is, and where the profile's weight really comes from.
Competitor backlink lists
Pull the full referring-domain list of any competitor, strongest first, and learn where they get their authority.
Outreach lists filtered by OA
Keep only referrers above the strength you care about and skip the long tail before you write a single email.
Bulk checks in one run
Pass a list of sites, from a handful to hundreds, and get every referring domain for each in one dataset.
Coverage and media research
Find the publications and sites that link to a brand, a campaign domain or a competitor's newsroom.
How to run
From a domain to its full link list in seconds.
- 01
Open it on Apify
Sign in with a free Apify account. No card needed to try.
- 02
Add your domains
One or hundreds. Set a minimum OA or a row limit if you only want the strongest.
- 03
Get your results
Download JSON, CSV or Excel, call the API, schedule it monthly, or hand it to an AI agent.
{
"domains": ["apify.com", "scrapy.org"],
"minAuthority": 20,
"maxReferrersPerDomain": 1000
}# every referring domain of scrapy.org with OA 20+, strongest first
curl -X POST \
"https://api.apify.com/v2/acts/crawlplant~referring-domains-checker/run-sync-get-dataset-items?token=$APIFY_TOKEN" \
-H "Content-Type: application/json" \
-d '{ "domains": ["scrapy.org"], "minAuthority": 20 }'# 1. Add this MCP server to your agent
https://mcp.apify.com?tools=crawlplant/referring-domains-checker
# 2. Ask in plain language
Which sites with Open Authority 60 or more link to scrapy.org?
Group them by topic and give me the ten strongest.
Reliability
Runs that don't break.
The same factory promises as every CrawlPlant Actor. How the factory works
Monthly release
Every list is rebuilt from each new Common Crawl web graph.
Answers in milliseconds
Each lookup reads a ready index. A typical run takes 2 to 13 seconds.
Partial, never failed
In a bulk run, every domain gets its own list, even if one isn't in the graph.
Checked every 3 hours
Canary runs look up known domains and compare the answers.
Release on every row
ccRelease tells you exactly which month's graph a list comes from.
Pricing
Pricing
$2.00per 1,000 referring domains
You pay for the rows you receive. A minimum OA or a row limit keeps a run to the referrers you actually want.
- OA, rank and totals included on every row
- Many domains in one run, one dataset
- No subscription. The free plan is enough to try it
Is this every backlink?
It's every domain in the Common Crawl web graph that links to the site: the full list, not a sample, strongest first. It works at domain level, so you get one row per linking domain rather than every individual page URL. That's usually what an audit or outreach list needs: who links to you, and how much each of them is worth.
How fresh is it?
We rebuild the index every month from the latest Common Crawl web graph. Every row names its release in ccRelease, currently cc-main-2026-jul-aug-sep.
Why do counts move from month to month?
Each crawl samples a different set of pages, so around 17% of referring domains change between releases even when nothing happened on the site. Treat a domain that appears as "newly seen" and one that drops out as "no longer seen", and look at the strong referrers, which are the most stable.
Can I keep only strong referrers?
Yes. Every row has referringDomainAuthority, and lists come strongest first, so a minimum OA or a row limit gives you just the top of the list and costs less.
Can an AI agent use it?
Yes. Add https://mcp.apify.com?tools=crawlplant/referring-domains-checker to any MCP client and the agent can pull a site's referring domains on its own, for example to answer "who links to this site?".
Related
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