How to Find Competitor Backlinks for Free (2026 Guide)

Why Backlink Discovery Is Hard (and Why Paid Tools Cost So Much)

Backlinks are votes from one site to another, and they remain one of the strongest correlated factors in Google’s ranking algorithm. The catch: there is no public list of who links to whom. Every commercial backlink tool is essentially a private search engine. They run their own crawler, store the index, and charge you for queries against it.

That is why Ahrefs, Semrush, and Moz cost what they cost. You are paying for billions of crawled pages and the engineering to keep that index fresh. Free tools either rely on smaller crawls, pull from Google’s and Bing’s own data (when they are willing to share it), or stitch together public sources. The good news is that for most small sites, those free signals get you most of the way there.

Why You Cannot Just Use the link: Operator

Google retired the link: search operator years ago. If you run link:examplesite.com today, you get either zero results or a tiny sample that does not reflect the real link graph. Any guide still recommending it was written for a Google that no longer exists. Skip it.

Method 1: Google Search Operators That Still Work

Even without link:, Google’s public index is the largest crawl on Earth. The trick is to ask the right questions. Pretend you are researching a competitor at examplesite.com and you want to find the publications that mention them.

Try these queries:

• "examplesite" -site:examplesite.com — find every page that mentions the brand outside the brand’s own domain.
• "examplesite.com" -site:examplesite.com — same, but matches the bare URL more cleanly.
• "Founder Name" site:medium.com — surfaces guest posts and bylines on big platforms.
• "guest post" OR "contributed by" "Founder Name" — targets bylined contributions.
• "Brand Name" intitle:interview OR intitle:podcast — finds podcast and interview placements.

Most of the results will not be live backlinks — some are mentions without a link. But the hit rate is high. Open the first 30 to 50 results, view-source the page (Cmd+U or Ctrl+U), and search for href="followed by the competitor’s domain. That is your real link list.

Method 2: Google Search Console (Your Own Site)

GSC only shows links to sites you own and verify, so it cannot reveal a competitor’s backlinks directly. But it is the single most accurate backlink source on the internet for your own properties, and it is free. Open the Links report from the left sidebar. You will see top linking sites, top linking text, and your most-linked pages.

For competitor research, GSC’s real value is comparison. Once you find a list of sites that link to a competitor (using methods 1, 3, 4, or 5), cross-reference with your own GSC links report. Every site that links to them but not you is a pitch target. Every site that links to both is a relationship to deepen.

GSC’s Quirks Worth Knowing

• The Links report typically updates every few days, not in real time.
• GSC samples links rather than showing every single one for very large sites.
• You can export the top 1,000 linking sites and the top 1,000 linking pages as CSV.

Method 3: Free Third-Party Tools

Several commercial tools maintain free tiers good enough for casual competitor research.

Bing Webmaster Tools

Free, underused, and surprisingly generous. Verify your site, then open the Backlinksreport. Bing also lets you check the backlinks of any domain you specify (not just yours), which Google’s tools no longer allow. Coverage is smaller than Google’s, but Bing crawls a real index and the data is fresh.

Ahrefs Webmaster Tools (Free)

Ahrefs released a free tier in 2024+ for verified site owners. You get site-audit features and access to the Ahrefs link index for your own domains. You cannot run unlimited competitor reports, but you can see how Ahrefs sees your link profile, which is the same crawler that powers their paid product.

Ubersuggest (Daily Free Queries)

Ubersuggest gives you a small number of free queries per day on any domain. Use them on your top 3 to 5 competitors. The link counts will be lower than Ahrefs, and the freshness lags, but the top referring domains list is usually directionally correct.

Moz’s Free Monthly Allowance

Moz Link Explorer offers a free monthly allowance of link queries. It is enough to spot-check a competitor or two each month. Combined with their free MozBar Chrome extension, you also get domain authority on every page you browse.

Method 4: HARO, Podcasts, and Guest-Post Profiles

The single highest-leverage move in competitor backlink research is mapping the competitor’s repeatable link sources. A one-off mention in a viral story is hard to reproduce. A column on Forbes, a recurring podcast appearance, or a HARO-driven quote in The New York Timesis replicable — the publication has already shown it accepts contributions of that kind.

Walk through the founder, head of marketing, and key writers one by one. Run their names through Google with operators from Method 1. Build a spreadsheet with columns for: source URL, type (guest post, interview, HARO quote, podcast), date, and pitch angle. Within an hour you typically have 20 to 50 publications you can pitch yourself.

Method 5: Wayback Machine and Manual Discovery

The Wayback Machine stores historical snapshots of millions of pages. It is invaluable for two cases: finding old partner pages that may still link to a competitor, and reconstructing the link footprint of a defunct or redesigned site.

Run the competitor’s domain through Wayback, pull snapshots from 2 to 5 years ago, and look at their footer, partners page, and resource pages. You will often find linked partners and customers that were quietly dropped from the current site — which means those external links may still exist but are no longer flagged in any modern crawler.

For broken-link reclamation, you can also check whether a competitor’s old URL still has inbound links pointing at it. Use our redirect checker on the URL to see if it 404s, then pitch the linking sites with replacement content.

Worked Example: Researching examplesite.com

Here is what each method surfaces for a fictional competitor at examplesite.com, run side by side.

Combined, you typically reconstruct 60 to 70% of the links a paid tool would surface, weighted toward the high-value placements that matter for outreach. The 30 to 40% you miss is mostly long-tail, low-authority, and rarely worth pitching anyway.

The Honest Gap vs. Paid Tools

Free methods fall behind paid tools in three specific places:

• Index size. Paid crawlers index far more pages than any free signal you can stitch together. For deep historical research, the gap is real.
• Refresh rate. Paid tools recrawl daily or weekly. Free signals lag by weeks.
• Filtering and metrics. Paid tools give you per-link domain rating, traffic, and toxicity scores at scale. Free tools either skip these or rate-limit them heavily.

For a small site doing 5 to 20 hours of outreach per month, free tools are fine. For an agency with link-building as a core service, the math eventually flips.

Putting It Together: A Weekly Workflow

1. Pick one competitor per week. Deeper research beats shallow coverage of many.
2. Run the Method 1 search operators. Save URLs into a spreadsheet.
3. Pull the competitor’s top 100 referring domains from Bing Webmaster and Ubersuggest. Dedupe against the spreadsheet.
4. Map their HARO, podcast, and guest-post placements (Method 4).
5. Cross-reference with your own GSC links report. Anything they have and you don’t is a target.
6. Pitch the 5 to 10 most relevant publications.

This routine takes about 90 minutes per competitor, costs nothing, and produces a steady pipeline of outreach targets. Pair it with a free domain authority checker to prioritize which referring domains are worth chasing first, and a robots.txt tester to confirm a target site is open to crawling before you invest in a long pitch.

Related Reading

Once you have a list of competitor backlinks, the next question is where you actually rank for the keywords those links are helping them target. Read our companion guide on how to check keyword rankings without paid SEO tools.

Frequently Asked Questions

Does the Google link: operator still work in 2026?

No. Google deprecated the link: search operator years ago and it returns either zero results or a tiny, unreliable sample. If you see a guide telling you to run link:competitor.com, the guide is outdated. Use site: searches with brand variations, Google Search Console for your own site, or free third-party tools like Bing Webmaster Tools and Ahrefs Webmaster Tools instead.

How accurate are free backlink checkers compared to Ahrefs or Semrush?

Free tools typically surface a smaller subset of a site’s link profile than the major paid tools, which run their own large-scale crawlers. In practice, free tiers cover roughly 60 to 70% of the high-value links you actually care about, especially recent and well-known referring domains. The biggest gaps are in low-traffic, niche, and older links. For competitor research on a budget, free tools are genuinely useful; for serious link reclamation or disavow work, you eventually need paid tools.

Can I see backlinks to a competitor in Google Search Console?

No. GSC only shows backlink data for properties you have verified ownership of. You cannot see links to a competitor unless you also own and verify their site. For competitor research, you need either free third-party tools (Bing Webmaster’s Backlinks report on your own site to see overlap, Ahrefs Webmaster Tools, Ubersuggest’s free tier) or manual methods like site: operator searches and the Wayback Machine.

What is the easiest way to find a competitor’s guest posts?

Use Google site: searches combined with the competitor’s name and bylines. Try queries like "Author Name" -site:competitor.com, or site:medium.com "Author Name", or "guest post by" "Brand Name". Bylines, podcast appearances, and HARO answers are some of the most replicable backlinks because the placement strategy is repeatable. Build a spreadsheet of every site that has linked to the competitor’s founder or key writers; those publications often accept similar pitches from you.

When is it worth upgrading from free backlink tools to paid ones?

Upgrade once free tools become a bottleneck rather than a budget choice. Specific signals: you are evaluating more than 5 to 10 competitors per month, you need historical link data older than what free tools surface, you are running an outreach campaign and need fresh links daily, or you have a manual penalty and need a near-complete link list for a disavow file. Until then, the combination of GSC, Bing Webmaster, Ahrefs Webmaster Tools (free), and Ubersuggest’s free tier covers most small-site needs.