Check backlinks, referring domains, dofollow links and authority for any domain or page. The checker runs on your own DataForSEO, Moz, Ahrefs or Semrush API key, so you get that provider's real numbers rather than a teaser, and every figure says which provider it came from.
Free to use, no sign-up. Your API key stays in your browser.
Enter a domain to see its whole link profile, or a full URL to check the backlinks of one page. Each check makes three calls to the provider you pick: a summary, up to 100 backlinks and up to 100 referring domains. Until you add a key, the results below are example data, so you can see what a check returns before you spend a single credit.
No API key in this browser yet, so the results below are example data.
Example data for example.com
These numbers are made up to show what a check returns. Add your own API key and press Check backlinks to see real data for your domain or a competitor's.
Your key is kept in this browser. DataForSEO requests go straight from your browser to DataForSEO. Moz, Ahrefs and Semrush do not accept requests from a web page, so those pass through a proxy on gscwizard.com that forwards them without storing or logging your key or the results.
A backlink analysis starts with a handful of counts and scores. They look alike across tools, but each is defined by the provider that reports it, so read them with the provider's name next to them.
Every link the provider found that points at the domain or page you entered. One article that links to you twice counts twice, and a sitewide footer link can add thousands, so this number swings far more than the quality of a link profile does.
The number of separate websites that link to you, also called linking root domains or root links. It is the better first measure of a link profile, because it grows only when a new site decides to link.
A nofollow link carries rel="nofollow", "sponsored" or "ugc", which tells Google not to treat it as an endorsement. Google calls these hints, so a nofollow link is not worthless, but the dofollow share is the part that most clearly passes ranking signals.
A vendor's own estimate of a site's link strength, and never a Google metric. Domain Authority comes from Moz (1 to 100), Domain Rating from Ahrefs (0 to 100), Authority Score from Semrush (0 to 100), and DataForSEO Rank uses its own 0 to 1,000 scale. The checker shows the score of the provider you picked, under that provider's name.
Shown only when the provider has one. Moz's Spam Score estimates the share of sites with similar features that Moz found penalised or banned by Google, and DataForSEO has its own backlink spam score. A high score is a reason to look at the links, not proof of a problem.
When the provider's crawler first found a link and when it last confirmed it. A link with an old last-seen date may already be gone, and a burst of first-seen dates in one week is worth a look, whether it comes from a campaign of yours or from someone else's.
Two sites can both report 20,000 backlinks and be in completely different shape. The first has links from 1,500 separate websites. The second has 19,000 of its links from a single partner's footer and the rest from a few dozen blogs. Counted as linking root domains, the first site has 1,500 and the second has perhaps 50, and that second number is the one that matches how either site ranks.
So in the Referring domains tab, sort by authority to find the strongest sites that link to you, and sort by backlinks to spot the sitewide links that inflate the total. When a competitor outranks you with fewer backlinks, the referring domain count usually explains why.
DataForSEO, Moz, Ahrefs and Semrush each run their own crawler and build their own link index. They start from different places on the web, revisit pages at a different pace, decide differently when a lost link is dropped, and count redirects, subdomains and duplicate URLs in their own way. Check the same domain with two providers and the backlink counts can easily be twice as large in one as in the other, with neither of them wrong.
Authority scores are further apart still, because each is a separate model on a separate scale. A Domain Authority of 40 and a Domain Rating of 40 do not describe the same site, and a DataForSEO Rank of 400 is not 4 times either of them. That is why the checker labels every number with its provider, and why a CSV export carries the provider name on every row.
The practical rule: pick one provider and stay with it. Compare your site with competitors in that provider, and compare your site with itself over time in that provider. None of these indexes sees every link Google sees, and Google does not publish its own.
For your own site, the most direct free answer comes from Google itself. The Links report in Google Search Console shows links Google has found, without any API key. If you already use GSC Wizard, your sites are verified in Search Console, so this report is waiting there for you.
In Search Console, pick your property and choose Links near the bottom of the left menu.
Top linked pages shows which of your pages earn the most links, Top linking sites shows the domains that link to you, and Top linking text shows the anchor text they use.
Press Export external links at the top of the report and choose Latest links or More sample links to download individual linking pages.
It is a sample rather than every link, it does not say which links are nofollow, it has no authority score, and it only covers sites you have verified. Google also keeps it out of the Search Console API, so no other tool can import it for you, GSC Wizard included. For a competitor, or for dofollow and authority data, you need a backlink checker such as the one above.
Bing Webmaster Tools has a free Backlinks report built from Bing's own crawl. It often lists linking sites that Google's sample leaves out, so the two together give a fuller free picture of who links to you.
Google stopped supporting the link: search operator in 2017, so there is no search that lists the pages linking to a site. You can still find backlinks using Google search in a roundabout way, by looking for pages that mention a domain or brand and then checking which of them link.
"example.com" -site:example.comPages on other sites that mention the domain. Many of them link to it."Example Brand" -site:example.comBrand mentions, including the ones without a link that are worth a friendly request."Example Brand" intitle:review -site:example.comReviews and roundups, the pages where a link is most likely and most useful.It works for any site, competitors included, but it is slow. Google shows only part of what it knows, the results mix links with plain mentions, and whether a link is nofollow only shows in the page source. Use these searches to find unlinked mentions, and use the checker above or Search Console's Links report to list the links themselves.
Competitor backlink analysis tools come down to one question: which sites link to the pages that outrank you, and could they link to you as well? With your own API key this checker gives you the raw lists to answer it.
Use the sites that rank above you for the queries you care about, not the biggest brand in your market. For a single topic, enter the competitor's ranking URL instead of its domain.
Run your own site and each competitor with the same provider, so the numbers come from the same index and can be compared at all.
Download the Referring domains tab for each site and put the files side by side in a spreadsheet. Domains that link to two or more competitors but not to you are your link gap.
In the Backlinks tab, search for a gap domain to see the exact page and anchor text. A resource list, a review or a quote in an article each suggests a different way to earn the same kind of link.
A backlink checker tells you who links to a page. It cannot tell you whether those links brought rankings and clicks, because that lives in your Search Console data. That second half of link analysis is what GSC Wizard, the Search Console tool I build, is for.
Take the pages that gained links and follow their clicks, impressions and average position in Page Performance, over the 16 months Search Console keeps and beyond, since GSC Wizard keeps storing your data past Google's limit.
Connect Bing Webmaster Tools and the Bing Overview report lists your most linked pages next to your Bing clicks and queries, without logging in to a second dashboard.
External links bring authority in, internal links spread it around. The Link Crawl report crawls your own site and shows how your pages link to each other, so a page that earns links can pass that value on.
Free for the 7-day trial. After the trial you need a paid plan, from €17 a month, because there is no free plan for the web app.
The page is free and needs no sign-up. Collecting backlink data costs money, so the checker runs on your own API key from DataForSEO, Moz, Ahrefs or Semrush, and that provider bills each check under your plan. Without a key you see example data for example.com, which shows exactly what a check returns.
In your own browser: for the current tab only, or on this device if you choose to remember it. DataForSEO calls go straight from your browser to DataForSEO. Moz, Ahrefs and Semrush do not accept calls from a web page, so those requests pass through a small proxy on gscwizard.com that forwards them to the provider without storing or logging your key or the results.
Each provider crawls the web with its own crawler and keeps its own link index, so each one finds a different set of links, drops lost links at its own pace and counts subdomains and redirects in its own way. Authority scores differ even more, because Domain Authority (Moz), Domain Rating (Ahrefs), Authority Score (Semrush) and DataForSEO Rank are separate models on separate scales. Compare sites within one provider, and never set one provider's number against another's.
Use the Links report in Google Search Console. It lists your top linked pages, the sites that link to you most and the most common link text, and you can export a sample of the linking pages. Bing Webmaster Tools has a free Backlinks report as well. Search Console only covers sites you have verified, so for a competitor you need a backlink checker like this one.
Not directly. Google stopped supporting the link: search operator in 2017. A search for your domain in quotes that leaves out your own site, such as "example.com" -site:example.com, still finds pages that mention you, and some of them link. Open each result to check, and treat the pages that mention you without a link as outreach leads.
Backlinks counts every single link. Linking root domains, also called referring domains, counts the separate websites those links come from. A site that links to you from its footer on 5,000 pages adds 5,000 backlinks but only one referring domain, which is why most SEOs judge a link profile by its referring domains first.
Yes. Enter a competitor's domain or one of its pages, export the referring domains to CSV, and do the same for your own site with the same provider. Domains that link to several competitors but not to you are the first ones worth a closer look.
Moz Domain Authority and Page Authority for up to 50 sites at once.
Ahrefs Domain Rating and URL Rating in bulk.
Check a site or a list of linking domains for spam signals.
Where a domain ranks in Google for a keyword, on desktop or mobile.
Crawl your own site for on-page and technical SEO issues.
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