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LinksVerifier
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Index of 181,132,097 domains

Domain rating checks for teams that buy links

You paid for 40 placements and the vendor sent a spreadsheet. LinksVerifier gives you a 0–100 domain rating and raw link data from our own index, so the sheet gets a second opinion.

Get $100 freeSee the QA mistakes
  • Free DR lookup, no key needed
  • Refreshed about once a month
  • Prepaid credit, no subscription
GET /api.php?action=domainJSON

$ curl "https://linksverifier.com/api.php?action=overview&q=nytimes.com&key=sk_live_..."

Who it is for

Why domain rating is the first test case in a link order

A domain rating is a 0–100 score built from how many other domains link to a site. Ours is round(100 · log(ref_domains+1) / log(2·10^7)), published in full, so you can recompute any number by hand.

Treat it as a smoke test. Fast, cheap, rough. If the vendor promised a DR 60 site and our index shows a score near 20, you have found something worth a ticket before you ever open the page. It is our own metric, comparable in spirit to Ahrefs DR or Moz DA but never the same figure.

It proves nothing alone. For that you need the referring page itself: fetch it, read the anchor, read the rel attribute. Our backlinks and refdomains actions tell you whether our crawler has seen the source domain pointing at yours, which is a useful cross-check but not a live fetch. The glossary defines each term.

The data refreshes roughly once a month. Plan for it. A link placed last Tuesday may not appear yet, and that is expected behaviour, not a failure. Plan your re-checks around it using the cost table, and see why a bought link goes missing before you accuse anyone.

domains in our own link index
181,132,097
domain-to-domain links
2,774,625,913
backlinks indexed
~798.5 billion
credits free on sign-up ($100)
1,000,000

One call per client site, one assertion per vendor claim

Pull referring domains for the target, sorted by rating, then compare the list with the order sheet. One call is billed once whatever the row count, up to 1,000 rows.

bash
curl "https://linksverifier.com/api.php?action=refdomains&q=yourclient.com&per=1000&sort=dr&order=desc&key=sk_live_..."
# 2 credits = $0.0002. Response includes ok and _credits (cost, balance).
# HTTP 401: missing or bad key. HTTP 402: credit ran out.

Checklist

The five assertions we run on every delivered batch

  • Every promised source domain appears in the referring-domain list, or is logged as not yet indexed.
  • The anchor text on the delivered page matches the order, checked with anchors and then by eye.
  • The rel attribute on the live page is what you paid for: a followed link, or one marked sponsored or nofollow.
  • The page returns a 200 without a redirect chain, checked with curl -I on your side.
  • A re-check is scheduled for after the next monthly refresh, not before it.

Who it is for

Which checks to run first on a new vendor

Three checks, in order, decide most of a first pass. The order matters more than the tools, because each step is cheaper than the one after it.

Screen the host list for free

Start with the free screen: domain and overview on every vendor host. A host that fails a plausibility check on its score is cheap to drop at this stage, before any paid call. Keep the dropped hosts with a reason, so the vendor can see why a host left the sheet.

How to tell a timing gap from a bad link

A link missing from our index may simply be newer than the last refresh. Compare the placement date with that refresh before you call it missing. Only after a second refresh, with the page still live, does the gap start to look like a real problem.

When one score is enough, and when it is not

A single 0–100 score is a good sorting tool and a poor verdict. Use it to rank a long list, then use the live page and the referring list to judge any one host. A high score on a page carrying a noindex tag still fails the job.

Read the referring list before the score

The referring-domain list shows who links, and a bare count hides that. Ten domains from one network and ten from unrelated sites read the same in a count, yet they carry very different meaning. Scan the list before you trust the number.

Keep the anchor and the rel in the same row

The anchor and the rel value belong in the row beside the host, not in a separate tab. A row that shows a host without its anchor invites a later argument about what was actually ordered.

Run the same three checks after each refresh

A first pass is a snapshot. Run the same three checks after each monthly refresh, in the same order and with a date stamp, so that a change shows up as a change rather than as a new opinion.

Compare

What each tool is good for in a link QA run

QuestionWhere to answer itCost
Is this domain's rating plausible?overview or domainFree
Do 200 vendor domains clear a DR floor?bulk_dr, up to 2,000 per call1 credit
Which sources link to my client?refdomains, backlinks2 credits
Is the link still live and followed?Your own fetch of the pageYour time
Keywords, rank tracking, daily crawlAhrefs or Semrush, the fuller productsSubscription

Where we fit

A cheap second opinion, not a live crawler

Use LinksVerifier for batch rating checks and for cross-checking who links where. Do not use it as proof a link is live today, and do not expect keyword data.

  • Monthly refresh, so a new link may lag
  • Link data only, no rank tracking
  • From $0.10 per 1,000 calls

FAQ

Questions from people who verify links for a living

What is a domain rating and how is yours calculated?
It is a 0–100 score from the number of referring domains, on a log scale: round(100 · log(ref_domains+1) / log(2·10^7)). Because the formula is public you can audit any number yourself. It is our own metric, so expect differences from Ahrefs DR or Moz DA.
Can the API tell me whether a bought link is nofollow?
No, we do not document a rel field, so we do not claim one. Fetch the live page and read the attribute yourself. Google has treated nofollow, sponsored and ugc as hints since 2020, so the paid label matters.
How fresh is the data?
The index refreshes roughly once a month. A link placed last week may not show up yet, which is why we suggest scheduling re-checks after a refresh rather than daily. A missing link right after delivery is a prompt to wait, not proof of fraud.
What does a scheduled re-check cost?
One refdomains call is 2 credits, or $0.0002, whatever the row count up to 1,000. Re-checking 100 client sites weekly for a year is about 10,400 credits, roughly $1.04. The free $100 credit covers far more than that.
Do I need a card to try it?
No. Sign in with a Google account and you receive $100 in credit, which is 1,000,000 credits. Top-ups later are paid in USDT (TRC-20) from the account page. There is no subscription and no monthly minimum.
Is this a replacement for Ahrefs or Semrush?
No. For keywords, rank tracking and a daily-fresh crawl, Ahrefs or Semrush are the fuller products. We sell link data at a low per-call price. Many teams keep both and use us for bulk checks.