How to Check Backlinks for Free: Complete Guide for 2026

What Are Backlinks and Why Do They Matter?

A backlink is a link from one website to another. When Site A links to Site B, that link is a backlink for Site B. In the early days of Google, co-founders Larry Page and Sergey Brin built the entire search engine around this concept. Their PageRank algorithm treated each backlink as a vote of confidence — the more votes a page received, the more authoritative it appeared, and the higher it ranked.

While Google’s algorithm has evolved far beyond simple link counting (it now uses hundreds of ranking signals including content quality, user experience, and E-E-A-T), backlinks remain one of the strongest confirmed ranking factors. Google’s own search quality documentation continues to reference links as a key way the algorithm discovers and evaluates pages.

The concept of “link equity” (sometimes called “link juice”) describes how authority flows from one page to another through links. When a high-authority site like the New York Times or a major university links to your page, it passes more equity than a link from a brand-new blog with no history. This is why a single backlink from a trusted source can move the needle more than dozens of links from obscure sites.

Backlinks also serve a practical discovery function. Google’s crawlers follow links to find new pages. If your site has no backlinks, Google may take longer to discover and index your content — or may never find certain pages at all. For new websites, earning even a handful of quality backlinks can dramatically speed up indexing.

The numbers paint a stark picture: according to Ahrefs’ study of over 14 billion pages, 66.31% of pages have zero backlinks. These pages overwhelmingly receive little to no organic traffic. Understanding your backlink profile — and your competitors’ — is not optional if you want to compete in search.

How to Check Your Own Backlinks

The most reliable free source for your own backlink data is Google Search Console (GSC). Since it comes directly from Google, the data reflects exactly what Google knows about your site’s link profile.

Step-by-Step: Google Search Console Links Report

First, make sure your site is verified in Google Search Console. If you have not set this up yet, go to search.google.com/search-console, click “Add Property,” and follow the verification steps (DNS record, HTML file upload, or Google Analytics verification all work).

Once verified, navigate to the Links section in the left sidebar. This report is divided into two main areas:

• External links — backlinks from other websites pointing to your pages. This is the section you care about most.
• Internal links — links between pages on your own site (useful for site architecture, but not what we are focused on here).

Under External links, you will see three views:

• Top linked pages — which of your pages have the most backlinks. This tells you what content is attracting links naturally.
• Top linking sites — which domains link to you most often. Look for patterns: are they industry sites, news outlets, directories, or spam?
• Top linking text — the anchor text other sites use when linking to you. Healthy profiles show diverse, natural-looking anchor text rather than repetitive exact-match keywords.

Click into any linked page to see the specific domains linking to it, and click a domain to see the exact URLs. Export the full dataset as a CSV by clicking the export icon in the top right corner of any table.

One limitation: GSC shows a sample of your backlinks, not every single one. For sites with thousands of backlinks, the report may not include all of them. But for most small to medium sites, it is comprehensive enough to give you a clear picture.

How to Check Competitor Backlinks for Free

Checking your own backlinks tells you where you stand. Checking competitor backlinks tells you where to go. This is one of the highest-leverage activities in SEO because it reveals exactly which sites are willing to link to content in your niche.

Use our free Backlink Checker to enter any domain and see its backlink profile. You can also use free-tier access from tools like Ahrefs Webmaster Tools (limited to sites you verify), Moz Link Explorer (10 free queries per month), or Ubersuggest (limited daily queries).

When analyzing competitor backlinks, focus on these questions:

• Which pages attract the most links? If a competitor’s “ultimate guide to X” has 200 backlinks, that tells you comprehensive content on that topic earns links. You can create something better.
• Which types of sites link to them? Industry blogs, news sites, resource pages, and educational institutions (.edu) are all valuable link sources. Make a list of these sites — they are your outreach targets.
• What anchor text patterns do you see? This reveals which keywords competitors are building links around and where their link profile might be over-optimized.
• Are there links you could also earn? If a competitor is listed on a “Best tools for X” roundup page, you can pitch yourself for inclusion. If they have a guest post on a blog, you can pitch a different topic to the same blog.

Checking your domain authorityalongside your competitors gives you a baseline for comparison. If a competitor’s domain authority is 50 and yours is 20, you know you need significant link building work before you can compete on their most competitive keywords.

What Makes a Good Backlink?

Not all backlinks are created equal. A single link from a respected industry publication can outperform hundreds of links from low-quality sites. Here are the factors that determine backlink quality:

Dofollow vs. Nofollow

A standard HTML link is “dofollow” by default, meaning it passes link equity to the target page. A link with the rel="nofollow" attribute tells search engines not to follow it or pass equity. Since 2019, Google treats nofollow as a hint rather than a strict directive, meaning it may still consider nofollow links for ranking purposes.

Google also introduced two additional attributes: rel="sponsored" for paid links and rel="ugc" for user-generated content like forum posts and comments. In practice, you want a natural mix of dofollow and nofollow links. A profile that is 100% dofollow can look manipulated.

Domain Authority and Trust

Links from high-authority domains carry more weight. A backlink from a government site (.gov), university (.edu), or major news outlet signals strong trust. You can check any domain’s authority score using our Domain Authority Checker. Generally, links from domains with an authority score above 40 are considered strong.

Relevance

A backlink from a site in your industry or niche is worth more than one from an unrelated site. If you run a fitness blog, a link from a health magazine carries contextual relevance that a link from a car dealership does not. Google’s algorithms evaluate topical relevance at both the domain level and the page level.

Anchor Text Diversity

Anchor text is the clickable text of a link. Natural backlink profiles contain a mix of: branded anchors (“hakaru”), naked URLs (“hakaru.io”), generic phrases (“click here,” “this resource”), and some keyword-rich anchors (“free backlink checker”). If the majority of your anchors are exact-match keywords, it looks like manipulation and can trigger algorithmic penalties.

Link Placement

Links embedded within the main body content of a page are more valuable than those in footers, sidebars, or author bios. Google assigns more weight to editorially placed links — links that an author chose to include because they genuinely add value for the reader.

How to Start Building Backlinks

Once you understand what good backlinks look like, you can start earning them. Here are proven strategies that work without spending money on links:

Create Link-Worthy Content

The foundation of any link building strategy is having content worth linking to. Original research, comprehensive guides, free tools, infographics, and data studies naturally attract links because they provide something other sites want to reference. Ask yourself: “Would someone cite this in their own article?” If the answer is no, improve the content first.

Guest Posting

Writing articles for other sites in your niche is one of the most reliable ways to earn backlinks. Find blogs that accept guest contributions (search “your niche + write for us” or “your niche + guest post”), pitch a unique topic, and include a natural link back to your site within the content or author bio. Focus on sites with real audiences — avoid “guest post farms” that exist solely for link building.

Broken Link Building

Find pages in your niche that link to resources that no longer exist (404 errors). Reach out to the site owner, let them know about the broken link, and suggest your content as a replacement. This works because you are helping the site owner fix a problem on their page while earning a link in return. Tools like Check My Links (a free Chrome extension) make finding broken links easy.

Digital PR and HARO

HARO (Help a Reporter Out) connects journalists with expert sources. Sign up as a source and respond to queries in your area of expertise. If a journalist uses your quote, they typically link back to your site. While HARO has become more competitive over the years, it remains one of the best free ways to earn high-authority media links. Similar platforms include Qwoted and SourceBottle.

Resource Page Link Building

Many sites maintain resource pages — curated lists of useful tools, guides, or references on a specific topic. Search for “your topic + resources” or “your topic + useful links” and reach out to suggest your content for inclusion. This works especially well if you have free tools (like backlink checkers) or comprehensive guides that genuinely add value to the list.

Reclaim Unlinked Brand Mentions

Sometimes sites mention your brand or content without linking to you. Search for your brand name, domain, or the titles of your popular content pieces. When you find mentions without links, email the author and politely ask if they would be willing to add a hyperlink. The conversion rate on these requests is high because the author has already shown interest in your brand.

Common Backlink Mistakes to Avoid

Building backlinks the wrong way can do more harm than good. Google’s Penguin algorithm specifically targets manipulative link building, and penalties can tank your rankings overnight. Here are the mistakes to steer clear of:

Buying Links

Purchasing backlinks violates Google’s Webmaster Guidelines. This includes paying for “sponsored posts” that pass link equity, buying links from link brokers, and exchanging products or services for dofollow links. Google has become increasingly sophisticated at detecting paid links. If caught, your site can receive a manual action that removes it from search results entirely. The risk far outweighs any short-term ranking benefit.

Private Blog Networks (PBNs)

A PBN is a network of websites created solely to link to a target site. Operators typically buy expired domains with existing authority, throw up thin content, and add links to their main site. Google actively hunts for PBNs by looking for patterns: shared hosting, similar site designs, thin content, and unnatural linking patterns. When Google identifies a PBN, it devalues every link in the network and may penalize the target site.

Irrelevant Directory Submissions

Submitting your site to hundreds of low-quality web directories is a relic of early SEO. Modern search engines assign little to no value to these links, and a large volume of directory links can make your profile look spammy. The exceptions are reputable, niche-specific directories (like a local business chamber of commerce) and major platforms (like Yelp or Crunchbase) that have genuine editorial standards.

Link Exchanges at Scale

“I’ll link to you if you link to me” is a natural part of the web. But systematic, large-scale link exchanges — especially with unrelated sites — are a Google guideline violation. A few reciprocal links with sites you genuinely recommend is fine. An organized link exchange scheme with dozens of partners is not.

Over-Optimized Anchor Text

If every backlink pointing to your page uses the exact keyword you want to rank for, it looks artificial. Natural link profiles have messy, varied anchor text. Aim for no more than 5-10% of your anchors to be exact-match keywords. You can monitor your anchor text distribution by checking your backlinks regularly and tracking what keywords you rank for alongside your link profile.

Frequently Asked Questions

How many backlinks do I need to rank?

There is no universal number. It depends entirely on the competitiveness of your target keyword. Pages ranking #1 on Google have 3.8x more backlinks than pages in positions 2 through 10 on average, according to Backlinko. For low-competition long-tail keywords, you may rank with fewer than 10 quality backlinks. For highly competitive head terms like “best credit cards” or “insurance quotes,” the top pages often have thousands. Focus on earning high-quality, relevant links rather than hitting a specific number.

Are nofollow backlinks worthless?

No. While nofollow links do not pass PageRank directly, Google treats the nofollow attribute as a hint rather than a strict directive since 2019. This means Google may still choose to follow and credit nofollow links in some cases. Beyond SEO value, nofollow links from high-traffic sites can drive significant referral traffic and build brand awareness. A natural backlink profile contains a mix of dofollow and nofollow links — a profile that is 100% dofollow actually looks suspicious to search engines.

How often should I check my backlinks?

For most websites, a monthly review is sufficient. Check your Google Search Console Links report, look for any new high-value links you have earned, and scan for suspicious or spammy links. If you are actively running link building campaigns, weekly checks help you track progress and measure results. If you experience a sudden ranking drop, check your backlinks immediately — it could indicate the loss of a major link or a negative SEO attack.

Can bad backlinks hurt my site?

Yes, though Google has gotten better at ignoring low-quality links rather than penalizing sites for them. Google’s Penguin algorithm, now baked into the core ranking system, identifies and devalues manipulative links in real time. In extreme cases — like a large-scale negative SEO attack or a history of purchased links — Google may issue a manual action that significantly drops your rankings. If you discover a pattern of toxic backlinks, you can use the Google Disavow Tool as a precaution.

What is the Google Disavow Tool?

The Google Disavow Tool lets you upload a text file telling Google to ignore specific backlinks or entire domains when evaluating your site. It is available in Google Search Console under the Security & Manual Actions section. Google explicitly recommends using it only as a last resort— for example, if you previously bought links that violate guidelines, or if your site is the target of a sustained negative SEO campaign. Using it incorrectly (disavowing legitimate links) can hurt your rankings. Most site owners will never need to use it.