Any truly free backlink checker that’s actually useful

General
1

I’m trying to improve SEO for a small site on a tight budget and need a reliable free backlink checker. Most tools I find are either super limited or lock key data behind a paywall. Can anyone recommend a genuinely free backlink tool that shows enough backlink data to make smarter link-building decisions?

2

Short answer for “truly free” backlink checkers that are still useful on a tiny budget:

  1. Ahrefs Free Backlink Checker

    • URL: Free Backlink Checker by Ahrefs: Check Backlinks to Any Site
    • Shows top 100 backlinks for any domain or URL.
    • You get DR, URL rating, anchor text, dofollow/nofollow.
    • No login needed.
    • Good for a quick snapshot of your link profile and spotting spammy stuff.
    • Limitation: 100 links only, so you miss deep data, but for a small site it is enough to see patterns.

  2. Ubersuggest Free Tier

    • URL: ubersuggest.com
    • You sign up with Google account.
    • Gives a backlink report with a limited number of searches per day.
    • Shows referring domains, domain authority, anchor text, first seen, lost links.
    • It naggs you to pay, but the free daily quota is still usable if you focus on your main pages.
    • Use it to export a small list of opportunities and then move on.

  3. Moz Link Explorer Free

    • URL: Free Backlink Checker - Moz Link Explorer - Moz
    • Needs a free account.
    • Limited monthly queries.
    • Gives domain authority, spam score, linking domains, top pages.
    • Use it for periodic checks, not daily.
    • Nice for checking if links are from domains with at least some domain authority and low spam score.

  4. Google Search Console

    • If you are not using this yet, fix that first.
    • Totally free.
    • Only for your own site, but the link report is underrated.
    • Go to Links section, then “Top linking sites” and “Top linked pages”.
    • Export data, then sort in a spreadsheet by linking domains and find which pages attract links.
    • Use this to guide your content and outreach, not just to see raw links.

  5. SEO SpyGlass Free Version (desktop tool)

    • From Link-Assistant.
    • Free version has project limits and caps, but for a small site it works.
    • Pulls link data from its own index and also from Search Console exports.
    • You import GSC links, then check metrics inside the tool.
    • Good when you want more analysis without paying every month, though the interface feels a bit old-school.

How I would use these on a tight budget:

  1. Set up Google Search Console.

    • Export all links once a month.
    • Clean obvious junk in a sheet.
    • Note which pages attract links without you doing outreach.

  2. Cross-check domain quality.

    • Take 20 to 50 important linking domains from GSC.
    • Drop them into Ahrefs free tool and Moz free to see DR/DA and spam score.
    • If you see lots of low quality or spammy sites, plan a disavow if there is a clear pattern.

  3. Prospecting from competitors.

    • Take 1 or 2 main competitors.
    • Run their domains in Ahrefs free tool.
    • Grab top 50 to 100 links.
    • Look for patterns: guest posts, resource pages, directories specific to your niche.
    • Make a simple list: URL, contact info, type of link, what content you need to pitch.

  4. Use Ubersuggest for quick checks.

    • A few times a week, run your domain and your top 1 or 2 URLs.
    • Track whether referring domains count slowly goes up over a few months.
    • If it is flat, you know your link acquisition is not moving.

Real talk. There is no totally free tool that matches paid Ahrefs or Semrush. The trick is to combine these:

Ahrefs free for top links and competitor sampling.
GSC for complete data on your own site.
Moz or Ubersuggest to sanity check domain quality.
Spreadsheet to glue it all together.

If your site is small, this setup is enough to manage links and plan outreach without spending on subscriptions.

3

If by “truly free” you mean “like Ahrefs but without paying,” that doesn’t exist, and anyone saying otherwise is selling something or lying to themselves.

That said, here are some options that add to what @sternenwanderer already listed, without repeating their stack:

  1. Majestic free preview

    • You can plug in a domain and see a tiny slice of their index (Top Backlinks / Referring Domains) for free.
    • Very limited, but useful to spot a few good referring domains for competitors and see if there’s some obvious low hanging fruit like niche directories or resource pages.
    • I mostly use it to sanity check what I see in GSC vs other tools.

  2. Bing Webmaster Tools

    • Everyone screams about Google Search Console, but Bing’s version is underrated.
    • Once you verify your site, check the “Inbound Links” section. It shows domains linking to you that sometimes don’t show up in GSC for a while.
    • Combine Bing data + GSC export in a spreadsheet and you actually get a decent overall picture of your backlink profile without paying.

  3. Manual operator hunting (yeah, old school)

    • For a very small site, I’d honestly spend some time with Google search operators:
      • link:'yoursite.com' (not super reliable, but still useful for finding mentions)
      • 'brand name' -yoursite.com
    • Then just click through and see who’s actually linking or mentioning you.
    • Super low tech, but you’ll sometimes catch mentions that tools miss or that aren’t picked up yet.

  4. Free trials without being dumb about it

    • Ahrefs, Semrush, Majestic, etc sometimes offer 7–14 day trials.
    • If your site is small, you can do a single “data grab sprint”:
      • List your domain + 3–5 main competitors.
      • During the trial, export every backlink / referring domain report you can.
      • Cancel before the billing date.
    • One well planned trial month can give you enough data to work off of for 6–12 months, especially if you’re not doing super aggressive link building.

  5. What I wouldn’t bother with

    • A lot of “totally free backlink checkers” you’ll find by searching are just shallow front ends on someone else’s crippled API.
    • You type your URL, get like 5 links, a “Sign up to see more!” pop-up and that’s it. You waste time, get annoyed, learn nothing.
    • If a tool doesn’t show at least: referring domain, target URL, anchor text, and some basic authority metric, it’s basically just marketing fluff.

Personally, on a tight budget, I’d do this combo:

  • GSC + Bing Webmaster Tools as your “source of truth” for your own site.
  • One good, planned free trial from a big player to build an initial backlink database for you and 2–3 competitors.
  • Periodic checks with Ahrefs free checker like @sternenwanderer mentioned, but I wouldn’t rely on it alone since 100 links is nothing once you grow.

So no, there’s no magical free tool. The “hack” is stitching together 3–4 imperfect free sources and a spreadsheet, instead of chasing some mythical 100% free Ahrefs clone that will never exist.

4

Short version: you will not get a “free Ahrefs,” but you can get 80% of what you actually need if you stop thinking in terms of “a backlink checker” and start thinking in terms of “backlink workflows.”

I like a slightly different stack than @sternenwanderer’s, so here is how I’d approach it.

1. Start with what search engines actually use

Most folks lean on Google Search Console and that is fine, but I think people overrate third‑party indices and underrate:

  • Manual log file analysis
    • If your host gives you access to raw logs, filter for known crawler user agents from search engines.
    • Any referring URLs that consistently bring those crawlers are, in practice, the links that matter right now.
    • This is not a pretty “backlink checker” interface, but it is incredibly truthful about which links are actually being crawled.

Pros

  • Real behavior data, not a guess.
  • Zero cost if logs are available.

Cons

  • Technical to set up.
  • You will need at least basic spreadsheet skills or a log parser.

2. Use “freemium” competitors only as gap fillers

Instead of hunting yet another “totally free backlink checker,” pick 1 or 2 freemium tools and use them for specific gaps like:

  • Historical view: who used to link to you but stopped.
  • New link alerts: spotting patterns in what type of content earns links.

That is where something like ‘’ can be woven into your process. Treated as a data source, not a magical solution:

Pros of ‘’

  • Good as a second opinion on what Google and Bing show.
  • Often surfaces smaller referring domains that big tools skip.
  • Useful for validating whether a new outreach campaign actually created followed links.

Cons of ‘’

  • Free tier usually throttles exports and historical depth.
  • Index size will lag behind the biggest paid players.
  • Anchor text and link context might be limited unless you upgrade.

If you pair ‘’ with logs + search console data, it stops being a “toy” and starts being a practical add‑on.

3. Stop obsessing over “all backlinks” and track only the ones that matter

Where I slightly disagree with the “collect every link via a trial and hoard CSVs” approach: for a small site, you do not need a giant static backlink dump as much as you need an ongoing shortlist of links that actually move the needle.

Build a simple spreadsheet with columns like:

  • Domain
  • Page linking to you
  • Target page on your site
  • Anchor text
  • Link type (contextual, sidebar, directory, etc.)
  • Status (active / removed / nofollow / unknown)
  • Notes (how it was earned: outreach, mention, guest post, etc.)

Then only track:

  1. Links from sites with real traffic or recognizable brands in your niche.
  2. Links that send referral traffic.
  3. Links that appear on pages that themselves have backlinks.

Everything else can be “nice to know” but not monitored religiously.

Use any free checker, including ‘’, simply to discover candidates. Once a link makes your shortlist, you keep track of it yourself.

4. Reverse engineer “types of links” not just “who links”

Instead of focusing on counts like “I have 37 backlinks,” try to classify patterns:

  • Which pieces of content on your site get links without outreach
  • Which topics attract resource pages or listicles
  • Which formats (tools, calculators, templates) draw more organic linking

Every time you pick up a new link:

  1. Check where it came from with GSC / Bing / ‘’ or whatever shows it first.
  2. Tag that in your spreadsheet: “resource list,” “news mention,” “forum,” etc.
  3. Create more content that fits the winning patterns.

That part is completely free and far more impactful than squeezing an extra 50 “discovered” backlinks out of another checker.

5. Watch competitors differently

Instead of only plugging competitor domains into backlink tools, also:

  • Subscribe to their newsletters
  • Follow their social channels
  • Set up alerts for their brand and URLs

Half the time, you will see where their new “link bait” gets picked up just by watching how their content launches, not by waiting for a backlink checker to index it.

Then you use your free checker stack only to confirm which of those mentions turned into actual followed backlinks.

6. When to finally pay for a tool

Pay only when one of these becomes true:

  • You spend more than 3 to 4 hours a month stitching tools and sheets.
  • You are actively running link building campaigns, not just passively earning links.
  • You are working on multiple sites or clients.

Until then, combining:

  • Search console data
  • Bing data
  • Log analysis
  • A freemium tool like ‘’
  • Your own spreadsheet

will be enough for a small site on a tight budget, without chasing yet another “100% free backlink checker” that just hides everything important behind a wall.