Knowing how to check backlinks is one of the more practical skills in SEO, since a site’s link profile changes constantly, new links appear, old ones disappear, and neither shows up unless someone actually looks. Backlink checking is the process of reviewing which sites link to a given domain, and what those links actually look like once you dig into the details.
Both free and paid methods exist for this, ranging from limited-data tools to full SEO platforms with historical tracking. Regardless of which route someone takes, the underlying process and the reasons for doing it stay the same.
What Does It Mean to Check Backlinks?
Checking backlinks means pulling a report on which pages and domains link to a specific site, then reviewing the details behind those links rather than just counting them.
A typical backlink report includes:
- Referring pages: the specific pages that contain a link
- Referring domains: the unique websites those pages belong to
- Anchor text: the clickable text used in each link
- Follow/nofollow attributes: whether a link is designed to pass SEO value or not
- Discovered and lost links: new links that have appeared and old ones that have disappeared over time
This data matters because backlinks remain one of the strongest off-page ranking signals in SEO. Without visibility into what’s actually linking to a site, it’s difficult to know whether a link-building effort is working, or whether something has quietly gone wrong.
When Should You Check Your Backlinks?
Backlink checking isn’t a one-time task. It comes up in several recurring situations:
- Monitoring a link-building campaign, to confirm new links are actually going live as expected
- Tracking competitor backlinks, to understand where a competing site is earning its links from
- Investigating a ranking decline, since a sudden loss of important links can be part of the cause
- Running a full SEO audit, where backlink health is one piece of a much broader technical and content review
- Evaluating a website before acquisition, to understand what its existing link profile actually looks like
- Spotting potential negative SEO, such as a sudden spike in low-quality or spammy links pointing at a site
Each of these scenarios calls for the same underlying check, just applied at a different moment for a different reason.
How Backlink Checking Works
Most SEO tools follow a similar workflow, regardless of which platform is being used. A domain or specific URL gets entered into a backlink checker, and the tool returns a report built from its own crawled index of the web.
From there, the report typically breaks down into a few key views: total backlinks and referring domains, a list of individual links with their anchor text and follow status, and a timeline showing newly discovered or lost links. Reviewing that timeline regularly is often more useful than looking at a single snapshot, since it shows momentum, whether a site’s link profile is actively growing, stagnant, or losing links faster than it’s gaining them.
It’s worth noting that no two backlink checkers see the exact same web. Each tool crawls independently, so the same domain can show different backlink counts depending on which checker is used.
Common Mistakes When Checking Backlinks
A few habits consistently lead people to misread what their backlink data is actually telling them.
- Focusing only on total backlink count: a domain with fewer links from strong, relevant sites can easily outperform one with thousands of weak ones.
- Ignoring referring domains: 500 backlinks from 10 domains says something very different than 500 backlinks from 500 domains, and total count alone hides that distinction.
- Overlooking lost links: new link growth means little if older, valuable links are disappearing at the same rate.
- Misinterpreting authority metrics: proprietary scores like domain authority are useful directional signals, not definitive rankings, and shouldn’t be treated as guaranteed indicators of SEO performance.
- Comparing data across different backlink databases: since each tool crawls independently, comparing raw numbers between two different checkers without accounting for that difference leads to false conclusions.
- Assuming nofollow links have no value: while nofollow links don’t pass the same direct authority as dofollow ones, they still contribute to referral traffic, brand visibility, and a natural-looking link profile.
Avoiding these mistakes comes down to reading backlink reports for patterns and context, not just headline numbers.
Final Thoughts
Regularly checking backlinks turns an invisible part of SEO into something measurable. It’s how link-building efforts get validated, how ranking issues get diagnosed, and how a site’s overall backlink health gets tracked over time. For a broader look at what makes a backlink valuable in the first place, our backlinks glossary entry covers that ground in more depth.
If reviewing and building out a backlink profile feels like more than you want to manage manually, our outreach and backlink building service handles that process end to end.
Related Terms
- Backlinks: the core concept behind everything a backlink check reports on
- External Ranking Factors: the broader category backlinks fall under
- How to Do SEO: where backlink monitoring fits into an ongoing SEO process
Supporting Content
- Google Search Central: Link Spam: Google’s own guidance on what counts as manipulative linking
- SEO Audit: for reviewing backlink health alongside other technical and on-page factors
- Outreach and Backlink Building: for building and maintaining a stronger backlink profile