A backlinks checker shows which websites link to a site, which pages those links point to, the words they use, and what changed since the last check. No single tool covers the whole job. A complete setup has five parts: Google's own view of your links, a large index for any site, quality signals, alerts on new and lost links, and prospect lists for building more. The short verdict: Google Search Console plus one SEO suite covers all five. Which suite fits depends on whether you mostly audit your own links or hunt for new ones.

The Toolkit take
5 parts
own links, any site's links, quality, changes, prospects: what a complete backlink setup covers
1,000 rows
per table in Search Console's Links report, which shows a sample of links
Top 20
links to any site in Ahrefs' free Backlink Checker
100 backlinks
per site on Ubersuggest's Free plan

Checking backlinks is a chain of small jobs, and each one needs different data. If you are still fuzzy on the basics, start with our guide to what backlinks are and why they count. Here the question is narrower: which tool handles which part.

Part of the job What it answers Free way Where a paid tool adds
Your own links Which links Google has found Search Console Links report Fuller lists, history, filters
Any site's links Who links to a rival or a prospect Free checker previews, top rows only Full reports from a large index
Quality Is a link worth having, or risky Your own judgment Authority and toxicity scores
Changes What was gained or lost Monthly export compared by hand New and lost reports, email alerts
Prospects Who might link to you next None worth the time Link gap and broken-link reports

The first part is always free. The second is where every free option runs thin, because only a paid index lets you open a competitor's full link list. The last part is what turns a backlink check into link building.

💡
Toolkit tip
Benchmark against Search Console

Before you commit to a tool, compare its referring domains for your site with Search Console's top linking sites. Links you know exist and the tool misses tell you how much it will miss elsewhere.

No checker sees the whole web. Each crawls its own index or licenses one, and each finds new links on its own schedule. So the same site shows different totals in different tools, and none of them is wrong. Compare referring domains, not raw link counts, and compare a site only against itself in the same tool.

Authority scores work the same way. Domain Rating, Domain Trust, Domain Rank and Trust Flow are each vendor's own scale. They are useful for ranking prospects within one tool. They are not Google's view of a site.

Toxicity scores need the same caution. Google says that in most cases it can assess which links to trust without additional guidance, so most sites will not need its disavow tool [1]. Disavowing makes sense only when you have many spammy links and they have caused, or likely will cause, a manual action. A red score is a prompt to look, not an order to disavow.

⚠️
Watch out
A toxic score is not a verdict

Toxicity and spam scores are each vendor's guess. Google's disavow tool is meant for many spammy links tied to a manual action, and a wrong disavow can hurt your site.

These three cover your links, any site's links, quality, changes and prospects in one account. They fit in-house marketers and agencies who check links every month and run outreach.

Ahrefs: deep link research and alerts

Ahrefs puts the work in Site Explorer. Enter a domain, subfolder or exact URL, then read Referring domains and Backlinks, with Domain Rating and URL Rating on 0-100 scales. It skips a spam score and offers a Best links filter instead. Alerts email you on new and lost links, and the lost-links report gives the reason each one dropped. Our walkthrough shows how to check backlinks in Ahrefs, from the free checker to the full reports.

Ahrefs Solves this

Site Explorer lists referring domains and backlinks for any domain, folder or URL with Domain Rating and URL Rating; Alerts email new and lost links, and Link Intersect and Broken backlinks turn rivals' links into outreach targets.

  1. Enter the domain or URL in Site Explorer
  2. Open Referring domains, then filter with Best links
  3. Run Link Intersect against two or three rivals
Where it stops: Ahrefs Free shows backlink data only for sites you verify; the free Backlink Checker shows the top 20 links of any site. Plan: Full Broken backlinks, Link Intersect and outgoing link reports start on Standard

Semrush: checking plus a cleanup workflow

Semrush splits the job across Backlinks, Backlink Gap and Backlink Audit. The audit is the distinctive part. It flags toxic links, sends removal emails through Gmail or Outlook, and builds a disavow file for Google. Semrush says new links reach its database within an hour. Exports go to Excel, CSV or PDF.

Semrush Solves this

Backlinks and Backlink Gap show who links to you and to rivals; Backlink Audit flags toxic links, sends removal emails through Gmail or Outlook and builds a disavow file for Google.

Where it stops: Backlink index size claims are hard to verify from outside; compare referring domains for your own site against another tool.

SE Ranking: research tied to monitoring

SE Ranking's backlink checker and monitoring tools give a toxicity score per link, new and lost referring domains, and a Backlink Gap Analyzer against up to 5 competitors. Backlink Monitoring rechecks the links you add every week, including links imported from Search Console. The catch: tables show a capped sample of a large profile.

SE Ranking Solves this

Backlink Checker shows referring domains, anchors and a 0-100 toxicity score per link; Backlink Gap Analyzer lists domains linking to up to 5 rivals but not to you, and Backlink Monitoring rechecks your own links every week.

Where it stops: Tables show a capped sample of large profiles; the full list needs the Data API. No free plan, a 14-day trial. Plan: Backlink Checker and Monitor are unlimited on Core and Growth

Not everyone needs a full suite. A blogger or a small business owner vetting a few sites a month can do well with a narrower tool. These trade depth for a simpler start.

Mangools: a link building tool for prospecting

Mangools' LinkMiner is built for finding prospects, not auditing millions of links. Type a domain, click Find backlinks, and filter by blog, forum or Q&A pages. Each row shows dofollow or nofollow and a live preview of the link on the page. The data is licensed from Majestic. Our LinkMiner and SiteProfiler tutorial covers the screens.

Mangools Solves this

LinkMiner lists a domain's or folder's backlinks with Link Strength, dofollow or nofollow, a live preview and category filters, so you save the best prospects to favorite lists; SiteProfiler adds an authority snapshot.

Where it stops: Data licensed from Majestic, not its own crawler; built for prospecting, not auditing millions of links. Plan: LinkMiner is in Basic, Premium and Agency, with a monthly backlink-row allowance that grows by plan

Serpstat: link gaps and partner vetting

Serpstat's backlink reports show Domain Rank, referring domains, anchors, and new and lost links. Link Intersect compares you with up to three competitors. Link Tracker follows the placements you have earned. Its browser extension gives a quick backlink summary of any domain, handy for vetting a link partner before you pitch.

Serpstat Solves this

Backlink reports show Domain Rank, referring domains, anchors and new and lost links; Link Intersect lists sites linking to up to three rivals but not to you, and Link Tracker follows your own placements.

Where it stops: The Free account allows 10 searches a day with 10 results per report.

Ubersuggest: a simple first look

Ubersuggest shows a backlinks overview, new and lost links over 30 days, three years of history, and Backlink Opportunities. The data comes from the Moz API. It shows Page Authority and Spam Score. It has no toxic-link scoring beyond that, and no disavow workflow. It suits a first look, not a cleanup.

Ubersuggest Partly

Backlinks overview shows new and lost links over 30 days, three years of history, Page Authority and Spam Score, with Backlink Opportunities pointing to sites that link to competitors.

Where it stops: Free shows 100 backlinks per site; data comes from the Moz API; no toxic-link scoring or disavow workflow. Plan: CSV export from Individual

The free base: Google Search Console

Search Console stays in every setup. Its Links report is the only free view of links Google itself has found. It lists top linked pages, top linking sites and top linking text. It also holds the disavow tool, the one place a disavow file actually reaches Google. Our step-by-step guide on how to check backlinks for free walks through the report.

It has hard edges. It covers only sites you have verified, shows a sample of links, and caps tables at 1,000 rows. It also doesn't say whether a link is nofollow.

Google Search Console Partly

The Links report shows the external links Google found to your site by linked page, linking site and link text; export Latest links monthly to spot new and lost links, and upload a disavow file when needed.

Where it stops: Own verified sites only, a sample of links, 1,000-row tables, no nofollow flag; disavow does not support Domain properties. Plan: Free

Combinations that cover the missing parts

Since no tool covers all five parts, the strongest setups pair two. Three pairings work for most readers.

  1. Search Console plus any suite. Search Console shows what Google found. The suite fills in competitors, history and alerts. When the counts disagree, trust Google's list for your own site.
  2. Search Console plus Mangools. Search Console audits your own links. LinkMiner finds prospects on competitor sites. This suits a blogger who builds links but rarely needs a cleanup.
  3. A suite's checker plus Search Console's disavow tool. Semrush and SE Ranking both build a disavow file. You still upload it in Search Console.

Here is how the second pairing plays out. A bakery owner exports Latest links from Search Console each month and compares the file with last month's. Two food blogs appear; one local news link is gone, so she emails the editor. Then she opens LinkMiner on a rival bakery's blog folder and filters to blog pages. Twelve food bloggers link to the rival's recipes but not to hers. Those twelve become her outreach list. Two tools, one short list.

💡
Toolkit tip
Narrow prospects to a folder

Check a rival's blog or resources folder, not the whole domain. The sites linking to those pages are the ones most likely to link to similar content of yours.

Start from the job, not the brand. Answer three questions in order.

Whose links do you check? Only your own? Search Console may be enough. Competitors and prospects need a paid index: Ahrefs, Semrush or SE Ranking for depth; Mangools, Serpstat or Ubersuggest for lighter use.

Do you clean up or build? Cleanup needs toxicity signals and a disavow file, which Semrush and SE Ranking build. Building needs gap and broken-link reports: Ahrefs Link Intersect and Broken backlinks, SE Ranking's Backlink Gap Analyzer, Serpstat Link Intersect.

Do you need alerts? A monthly export covers a small site. Ongoing campaigns need new and lost link alerts, which Ahrefs emails and SE Ranking's weekly monitoring provides.

Then test each candidate on your own site. Compare its referring domains with Search Console's top linking sites. A tool that misses links you know exist will miss prospects too.

Frequently asked questions

Is there a free backlinks checker for any website?+

Yes, in preview form. Ahrefs' free Backlink Checker shows the top 20 links to any site, SE Ranking offers a backlink checker preview without an account, and Serpstat's free tier allows 10 searches a day with 10 results per report. Full lists need a paid plan.

How often should I check my backlinks?+

For a small site, once a month is enough: export Latest links from Search Console and compare it with last month's file. Active link building campaigns need closer watch, such as Ahrefs Alerts or SE Ranking's weekly Backlink Monitoring.

Can a website backlinks checker show nofollow links?+

Some do. Mangools' LinkMiner marks each row dofollow or nofollow. Google Search Console's Links report does not say whether a link is nofollow.

Do I need to disavow the toxic links a tool finds?+

Usually not. Google says most sites will not need its disavow tool. Use it only when you have many spammy or artificial links that caused, or likely will cause, a manual action.

The bottom line

The best backlinks checker is the one that closes your missing parts. Start free with Search Console, then add one tool for what Google won't show: competitor links, history, alerts and prospects. Treat every count and score as a comparison within one tool. And build links people choose to give. Google lists buying or selling links for ranking purposes, including exchanging money for links, as link spam [2], so the prospect list should lead to outreach, not payments.

Sources
  1. [1] Google Help (Oct 2026) https://support.google.com/webmasters/answer/2648487?hl=en
  2. [2] Google for Developers (Oct 2026) https://developers.google.com/search/docs/essentials/spam-policies