How to Check Backlinks Free: 5 Methods That Actually Work

By Mubashir Safeer✓Updated 12 Oct 202610 min read

You can check any website’s backlinks for free in under two minutes. If you’re wondering how to check backlinks without paying for an expensive SEO suite, the fastest way for your own site is Google Search Console’s Links report; for any domain on the internet — including competitors — free tools like Ahrefs’ backlink checker show you the top backlinks without an account. Below are the five free methods I actually use, in order of reliability. free tools to analyze any backlink profile. how to check a competitor’s backlinks step by step.

One honest note before we start: no two tools will ever show you the same number. I’ll explain why in the “Why every tool shows a different number” section — and why it doesn’t matter as much as you think.

Method 1: Google Search Console (Best for Your Own Sites)

If you own the website, Google Search Console (GSC) is the single most trustworthy free method to check backlinks. The data comes straight from Google’s own index — no third-party crawler involved.

Here’s the exact workflow:

1. Verify your site in Google Search Console (free; verification takes a few minutes via DNS or HTML file).
2. In the left sidebar, click Links.
3. Under “Top linking sites” you’ll see which domains link to you most, and under “Top linked pages” you’ll see which of your pages attract the most links.
4. Click any domain to see the exact pages linking to you, then click Export (top right) to download the full list as CSV or Google Sheets.

Google documents this report in its Search Central help pages, which confirm the Links report shows a sample of your site’s links — not every single one Google knows about, but a large, representative set.

Limitation: GSC only works for sites you can verify. You cannot check a competitor’s backlinks this way — for that, you need the tools in methods 2–4.

Method 2: Ahrefs Free Backlink Checker (Best for Any Domain)

Ahrefs runs one of the largest commercial link indexes in the SEO industry, and they give away a useful slice of it for free. Their free backlink checker lets you enter any domain — yours or a competitor’s — and see the top 100 backlinks pointing to it, no account required.

What you get for free:

• The top 100 backlinks by their internal ranking, with the linking page’s URL
• Domain Rating (DR) of the linking domain — Ahrefs’ own 0–100 authority score
• Whether each link is dofollow or nofollow
• Anchor text used in each link

What you don’t get: the full backlink profile (that’s behind the paid plan), historical data, or lost-link tracking. But for a quick answer to “who links to this site?”, the top 100 is usually enough — the strongest links tend to surface first.

Want to analyze any site’s backlink profile? Try our free website authority checker.

Pro tip: sort by DR descending. The highest-authority linking domains are the ones worth studying — check what content earned those links, because that’s the content format you may want to replicate.

One more practical use: before you pitch a guest post or buy a link placement on any site, run the domain through the free checker first. If Ahrefs shows barely any referring domains despite the site claiming big traffic numbers, that’s a red flag worth investigating before you spend money or effort. I do this check as part of every site-vetting routine — it takes thirty seconds and has saved me from bad placements more than once.

Method 3: Semrush and Moz Free Tiers

Two more reputable options with genuinely useful free access:

Semrush (free account)

Semrush’s free backlink tools let you run a limited number of backlink analytics queries per day with a free account. You get referring domains, authority score, anchor text distribution, and link type breakdowns. The daily limits are tight, but for checking one or two domains it’s completely workable. anchor text types explained with examples.

Moz Link Explorer (free with account)

Moz’s Link Explorer offers a handful of free queries per month. It’s particularly useful because it shows Domain Authority alongside the link data — handy if you also use a domain authority checker and want both numbers in one place.

Honest take: neither free tier replaces a paid subscription for serious link research. But both are legitimate, data-backed ways to check backlinks free when you only need occasional lookups.

Method 4: The Google Search Operator Trick (No Tool Needed)

This one requires no account, no tool, and no signup — just Google itself. Type this into the search box:

"example.com" -site:example.com

(Replace example.com with the domain you want to check.)

What this does: the quoted domain finds pages that mention the domain anywhere in their text, and -site:example.com excludes the domain’s own pages. The results are pages across the web that reference the site — many of which will contain actual backlinks.

Limitations — be honest about them:

• It finds mentions, not confirmed links. A page can mention a domain without linking to it.
• Google caps the visible results (you’ll typically see a few hundred at most).
• There’s no authority data, no dofollow/nofollow info, no export.

Still, as a zero-cost reconnaissance method — “is anyone talking about this site at all?” — it’s surprisingly useful, especially for brand-new sites where paid tools show nothing yet.

Method 5: Free Backlink Checker Tools Roundup

Beyond the big names, several smaller free tools check backlinks with no account:

• SmallSEOTools / DupliChecker style checkers — quick, no signup, but thin data and ad-heavy pages. Fine for a rough count, not for analysis.
• Neil Patel’s Ubersuggest (limited free) — shows a sample of backlinks with domain score, capped daily searches.
• SEOptimer / Sitechecker free audits — include a backlink summary as part of a broader site audit.

My honest ranking for free use: Google Search Console first (your own sites), Ahrefs free checker second (any domain), then Semrush/Moz free tiers for cross-checking. The smaller tools are fine for a second opinion but I wouldn’t base decisions on them alone.

All 5 Backlink Checker Methods Compared

Quick reference so you can pick the right method for your situation:

If you only remember one row: start with Search Console for your own site and Ahrefs’ free checker for everyone else’s. Between those two, you’ll cover the vast majority of what most people need from a backlink check.

GSC vs Ahrefs: Why Backlink Numbers Differ So Much

The most common confusion: Google Search Console shows 500 backlinks, Ahrefs shows 1,200 for the same site. Here is exactly why:

The practical rule: use GSC as your source of truth for your own site, and Ahrefs (or Semrush) for everything else. When the numbers disagree, neither is wrong — they are measuring different slices of the web.

Why Every Tool Shows a Different Number

This confuses everyone at first: you check the same domain in three tools and get three different backlink counts. None of them is “wrong” — here’s why.

No tool crawls the entire web. Google is the only entity with anything close to a complete picture, and it doesn’t share it. Every SEO tool — Ahrefs, Semrush, Moz — maintains its own crawl index: its own fleet of crawlers discovering pages on its own schedule. Ahrefs has written publicly about the scale of its index; Moz documents how its Link Explorer index is built and refreshed. Because each index is a different slice of the web, each finds a different set of links.

There are two more reasons counts differ:

• Discovered vs. indexed. A tool may discover a link (find it on a crawled page) but take time to process it into the index you query. Fresh links often appear in one tool weeks before another.
• Counting rules differ. Some tools count every link instance (ten links from one page = ten backlinks); others deduplicate. Some include nofollow, some filter it. Always compare backlinks and referring domains compared — referring domains is the more stable metric across tools because it counts unique linking sites, not individual links.

The practical rule: pick one tool and stick with it for tracking over time. Trends within a single tool are meaningful; absolute numbers compared across tools are not.

What to Do After You Check Your Backlinks

Checking is step one. Here’s the short version of what comes next:

1. Audit for quality. Look at your referring domains — are they real sites with real content, or spammy directories and link farms? Pay special attention to sudden spikes: if you gain dozens of new referring domains in a week without doing any link building, someone may be pointing spam at you. If you spot identifying toxic backlinks, Google’s disavow tool exists for the genuinely harmful ones (use it sparingly — most low-quality links are simply ignored by Google, not penalized).
2. Find your best links and get more like them. Your top 10 referring domains by authority tell you what kind of content and outreach actually earns links in your niche. Double down on what worked.
3. Check competitors, then close the gap. Run a competitor’s domain through the Ahrefs free checker, note their strongest referring domains, and ask: could my content earn a link there too?
4. Keep building. A backlink profile is never “done.” If you want links from real, high-authority sites without the outreach grind — podcast interviews that earn editorial backlinks, hand-built profile links, or guest posts on vetted sites — that’s exactly what my links from podcast appearances and guest posting opportunities services do.

Check your backlinks monthly. It takes ten minutes, and it’s the earliest warning system you have for negative SEO, lost links, or a link-building campaign that’s actually working.

Backlink Quality Checklist: Is This Link Worth Anything?

Not all backlinks are equal. Run every important link through this checklist:

• ☐ Real website? Does the linking domain have genuine content, an about page, and signs of a real audience — or does it look like it exists only to sell links?
• ☐ Topical relevance? Is the linking page in your niche or a related field? A link from a relevant DA 30 site beats an irrelevant DA 60 site.
• ☐ Editorial placement? Is your link inside the article body (good), or buried in a footer, sidebar, or author bio (weaker)?
• ☐ Real traffic? Check the domain in a traffic estimator. Sites with zero organic traffic pass far less value, whatever their DA claims.
• ☐ Natural anchor? Branded or descriptive anchors are healthy. Exact-match commercial anchors on every link are a red flag.
• ☐ Dofollow? Dofollow links pass ranking credit; nofollow links still drive traffic and diversify your profile. You want both, roughly 70/30.
• ☐ Index status? If Google has not indexed the linking page, the link currently passes zero value. Verify in GSC or with a site: search.

Frequently Asked Questions

Quick answers to the questions I hear most about how to check backlinks:

Can I check a competitor’s backlinks for free?

Yes. Google Search Console only works for sites you own, but Ahrefs’ free backlink checker shows the top 100 backlinks for any domain — including competitors — with no account. Semrush and Moz free tiers also allow limited competitor lookups per day or month.

Why do backlink checkers show different counts for the same site?

Every SEO tool maintains its own crawl index — its own slice of the web, crawled on its own schedule. No tool sees every link, so counts always differ. Tools also count differently (total links vs. unique referring domains, dofollow vs. all links). Compare trends within one tool rather than absolute numbers across tools.

How often should I check my backlinks?

Once a month is enough for most sites. Check more often — weekly — right after a link-building campaign, so you can confirm new links are being discovered. Also check immediately if your rankings drop suddenly, since lost or toxic links are a possible cause.

Are free backlink checkers accurate?

They’re accurate enough for most purposes. Free checkers show real links from real crawled pages; their limitation is coverage, not correctness — they show a sample (like Ahrefs’ top 100) rather than the full profile. For casual checks, competitor research, and monthly monitoring, free tools are genuinely sufficient. Paid plans matter when you need complete data, historical tracking, or lost-link alerts.

What’s the difference between backlinks and referring domains?

A backlink is a single link from one page to another; a referring domain is a unique website that links to you. Ten links from the same site equal ten backlinks but one referring domain. Referring domains is the more important metric — read the full breakdown in my guide to backlinks vs referring domains.