Semrush Backlink Checker

How the Semrush Backlink Checker Works

To use the Semrush Backlink Checker, you enter a domain or URL into the tool. It then queries Semrush's index of the web and returns a list of backlinks pointing to that domain.

The free version shows a limited number of results. A paid subscription unlocks more data, including historical trends and advanced filters.

The tool is part of Semrush's broader suite. Understanding what semrush means helps you see how this tool fits into digital marketing.

• Enter a domain or URL into the tool's search bar.
• Semrush queries its web index and returns matching backlinks.
• Results include metrics like authority score, anchor text, and link type.
• You can filter results by parameters such as follow status or language.
• Data can be exported for further analysis in a spreadsheet.

Key Metrics in the Backlink Report

The report includes several metrics to evaluate a backlink profile. The most important are total backlinks, referring domains, and authority score.

You can also see the anchor text used in each link, whether the link is follow or nofollow, and the type of link (text, image, etc.).

Total backlinks count every link found, but many from the same domain can inflate the number. Referring domains give a better sense of diversity. Authority score is Semrush's proprietary estimate of a domain's link strength, ranging from 0 to 100. A higher score suggests more valuable links, but it is not a Google metric.

Anchor text matters because it gives context. For example, many links with exact-match anchor text like 'cheap shoes' may look unnatural. Follow links pass link equity; nofollow links do not, but they can still drive traffic. The link type tells you if it is a text link, an image link, or another form.

These metrics help you decide which links to pursue for outreach and which to monitor for potential harm. A link from a high-authority domain with relevant anchor text is usually worth more than many low-quality links.

• Total Backlinks: the number of links found.
• Referring Domains: the number of unique domains linking.
• Authority Score: Semrush's proprietary estimate of a domain's link strength.
• Follow vs Nofollow: whether the link passes link equity.
• Anchor Text: the visible text of the link.

Using the Free Version vs. Paid Subscription

The free Semrush Backlink Checker gives you a snapshot. You see the top backlinks and basic metrics. For deeper analysis, you need a paid plan.

Paid users can export data, filter by date, and access historical data. They also get integration with other Semrush tools like the SEO Checker.

The free version shows a limited number of results, typically around 100 backlinks. This is enough for a quick check but not for a full audit. Paid plans start at around $119.95 per month and include unlimited results, advanced filters, and the ability to compare up to five domains side by side.

For example, if you want to see how your backlink profile has changed over the past year, you need the paid version. The free version only shows current data. Similarly, exporting a CSV file for offline analysis is only available on paid plans.

Another difference is the toxic link flagging. The free version gives basic flags, while paid users get detailed reports with reasons for each flag. This helps you prioritise which links to review.

How to Interpret Toxic Link Flags

Semrush's Backlink Audit tool flags links it considers toxic. These flags are based on proprietary algorithms. They are not a direct signal from Google.

You should manually review each flagged link before taking action. Disavowing a link should be a last resort. Google's disavow tool is for links that cause manual actions, not for every flagged link.

Regular Backlink Monitoring helps you track changes over time. A link flagged today may not be flagged tomorrow as the index updates.

Toxic flags often come from links on spammy domains, sites with low authority, or links with unnatural anchor text. But a link from a low-authority site might still be natural and harmless. For example, a mention from a small blog could be perfectly fine.

Semrush assigns a toxicity score from 0 to 100. A score above 60 is considered high risk. However, I recommend checking the linking domain yourself. Look at the site's content, its own backlink profile, and whether the link appears in a relevant context. If the link is from a site that looks legitimate, the flag may be a false positive.

Comparing Semrush Backlink Checker with Google Search Console

Google Search Console provides a Links report showing external links that Google has found. This data comes from Google's own index. It is more authoritative for understanding how Google sees your links.

Semrush's data is a sample from its own crawl. It may include links Google has not yet seen or exclude links Google knows about. Cross-checking both tools gives a fuller picture.

A Backlink is a link from one site to another. Both tools help you understand your backlink profile, but they serve different purposes. For competitor analysis, Semrush is more useful because it shows links Google may not show.

Another popular tool is Ahrefs Backlink Checker. It offers similar features with its own index.

Exporting and Acting on Backlink Data

You can export Semrush backlink reports as a CSV file. This allows you to analyse the data in a spreadsheet or import it into other tools.

Common actions include identifying link building opportunities, finding lost links, and reviewing links for potential harm. For outreach, you can filter by authority score and anchor text.

If you prefer a different tool, backlink checker moz is another option. It provides similar data with Moz's own metrics.

When you export, you get columns like target URL, source URL, anchor text, authority score, and first seen date. You can sort by authority score to find the most valuable links first. For lost links, you can check the last seen date and try to recover them by contacting the linking site.

For outreach, I recommend filtering for links with relevant anchor text and a decent authority score. Then compile a list of sites to contact for guest posts or link requests. Always personalise your outreach email.

Limitations of Third-Party Backlink Indexes

No third-party backlink tool has a complete index of the web. Semrush's index is large but still a sample. Links may be missing or outdated.

The data changes frequently as the tool recrawls. A report from today may differ from tomorrow's. Treat the numbers as directional, not absolute.

For traffic analysis, you might also use semrush traffic checker. But remember that all third-party estimates are approximations.

Semrush's index covers billions of pages, but it cannot crawl every page on the internet. Links from new sites or pages that are hard to crawl may not appear. Also, links that are noindexed or behind login walls are often missed.

Another limitation is that Semrush does not show the context of the link beyond anchor text. You cannot see the surrounding content without visiting the page yourself. This means you have to manually check if the link is placed naturally.

Despite these limitations, Semrush is a valuable tool for competitive analysis and link building. Just do not rely on it as the sole source of truth.