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Auditing Your Backlinks


The main goal of Semrush’s Backlink Audit Tool is to help you get rid of as many toxic links for your domain as possible. The Audit tab of this tool lets you comb through your entire backlink profile (up to 500 backlinks per referring domain) and pick out the links that you either want to keep or delete.

A number of factors go into Semrush’s definition of toxic, but some of the most common signals are links from spammy sites, links from non-Google indexed sites and sites with malware or viruses. Basically, any unnatural link that has the potential to cause harm to your domain’s ranking in Google is considered a toxic backlink.

Once you have configured your Backlink Audit Tool, your backlinks will be listed in a table with three groups to move them between: For review, Whitelist, and All links.

You can also set your Backlink Audit to the page and subpath level when you click on your report scope.

Backlink Audit scope

At the start, you will have all of your links in the "For Review" group. This group can be considered your working folder - the links that you are currently auditing. The "All links" group will be there as your backup, as these links will always remain in your audit in the case of a mistake. However, keep in mind that once you disavow any of these links they will disappear from BOTH folders. Disavowing is essentially letting Google know to not consider the impact of these links at all when reviewing your site.

You can see which of your backlinks are new by clicking the "New" checkbox. A backlink is considered new if less than a month has passed since the first time Semrush discovered it. 

Backlink Audit new links

If you have a list of backlinks that you want to add to the audit report, you can upload it manually using the csv format.

Backlink Audit import backlinks

The tool will need some time to crawl the backlinks from the list. Once the import has started, the process cannot be stopped from the interface.

Please note that the backlinks which are wrapped in Javascript or don’t respond with the 200 HTTP status code won’t be added to your audit campaign.

Domain and URL

Just below these three groups of backlinks, you will notice there is a filters tab as well as two labels: Domain and URL. The group of domains will include backlinks tied to a referring domain, while the URL group will allow you to see the individual URL of your backlinks. This is beneficial if you know the particular URL that is potentially harmful. The search bar directly to the right will also give you the chance to search by URL, Page Title, and Anchor text.

Backlink Audit group by domain url

Additional info Column

Backlink Audit additional info column

There is a column in this table that lets you choose between different metrics to display:

  • Authority Score - our proprietary metric used to measure the overall quality of a domain and its backlinks’ influence on SEO. Read more about authority score.
  • Referral Traffic (after connecting Google Analytics) - visits to your website from a referring domain over a period of 30 days since the last time you updated your Project. 
  • Domain Category - categories of a referring domain
  • IP/Country of referring domain - Internet Protocol (IP) address and geographical location of the referring domain’s host.
  • Source Backlinks - the total number of backlinks leading to the source domain
  • Referring Domains - the total number of referring domains pointing to the source domain
  • Keywords - the number of keywords bringing users to the source domain
  • Monthly Visits - the number of unique visitors to a referring domain over the last month
  • First seen date - the date when Semrush first discovered the backlink.

These metrics, in addition to Toxic Score, will help you judge the trustworthiness of the referring domain. 

Referral Traffic = n/a

If the number under the Referral Traffic column says n/a next to a link in your table, this means that there is no information in your Google Analytics regarding the referral traffic from that domain over the past 30 days from the date that you last updated your Project.

Toxic Score

The Backlink Audit Tool sorts the toxic backlinks in order of Toxic Score, with the highest Toxic Score links being shown on the first page. Toxic Score is how the Backlink Audit Tool determines which of your links are the most dangerous for your website. Toxic Score is based on a scale of 0 to 100, with 0 being good and 100 being very toxic.

There are currently over 40 different toxic markers that Semrush uses in determining the Toxic Score for a link. By hovering over the Toxic Score you will be able to see specifically which Toxic Markers are associated with that specific backlink.

The action that you decide to take with a backlink should be determined by its Toxic Score. If you see a number of backlinks that appear to have a dangerous Toxic Score you will want to send them to your remove list (to manually ask for removal) or disavow list. A disavow list can be sent to Google so that the links can be disassociated with your website.

To keep things clean in Backlink Audit, you can create a whitelist that includes domains with a low toxic score or which you know to be natural and safe. Once you have created your whitelist, you will be left with domains that are deemed to be toxic. 

Currently moving links to the Whitelist doesn't affect your overall toxicity score in Backlink Audit. The key reason for this is that the whitelisted domains/links will still trigger toxic markers which may negatively impact your overall toxicity score.

The score in Backlink Audit will be recalculated if you confirm that you have disavowed toxic backlinks in Google Disavow Tool or if Backlink Audit doesn’t find your toxic backlinks after a recrawl. You will find more information about the disavowing procedure in the article Disavowing Your Backlinks.

Both of these actions (disavow and whitelist) can be done with buttons underneath the action tab to the far right of the backlink.

You may notice that you are given the option to send full domains as well as just URLs to disavow. If you are certain that all of the pages on a domain are bad links its probably best to disavow them at the domain level to ensure you are not risking missing on other potential toxic links from that domain.

Backlink Audit move to disavow

You are also able to view your backlinks as groups. The Backlink Audit Tool lets you group backlinks by both Domain and URL. This can let you save time if you know you are looking to just disavow whole domains. 

Using Filters To Increase Your Audit Accuracy

By using the toxic marker filters you are able to narrow down your list of audited backlinks to those that have a higher priority for your specific goal. Let’s say you are looking for any backlinks that are coming from pages with spam TLDs, you can easily select that specific marker and the backlink audit tool will filter out your results to show you just the links Semrush found coming from pages with spam TLDs.

You are able to easily filter by new backlinks by clicking on the new checkbox next to the filter search bar. Not only that but you can also see links that have a Target URL Error.

Backlink Audit new links and target url errorThe Target URL Error filter lets you look for links in your profile that lead to broken pages. This will make it easier for you to see the pages that need to be fixed or that need a redirect.

Building Links from a Competitor’s Broken Links

If you happen to find a broken page on your competitor’s backlink profile you could use this as a way to contact that site owner and request they update that page to a link on your site with similar content. Take note of the domain and add it to your Link Building Tool workflow to stay organized.

Advanced Filters

Advanced Filters allow you to narrow down your results based on more than just toxic markers. Under the advanced filters dropdown menu, you can filter by ToxicMarkers, Link Attribute, Audit types, Anchors, Category, Authority Score and Link type.

Backlink Audit advanced filtersAudit types are grouped into three categories, toxic, potentially toxic and non-toxic. This can help save you time if you are looking to just analyze the list of backlinks that are definitely toxic to your overall profile.

Link Attributes are grouped into the following four categories, Follow, NoFollow, Sponsored links and UGC. Click on any of these groups and your backlink data will be filtered out accordingly.

Anchor Text

The Backlink Audit Tool also groups backlinks by their corresponding anchor text. These anchors include Money, Compound, Branded, Organic, Other, Naked and Empty. Branded anchors are anchors that include your brand's name. Naked anchors appear just as it would in the URL. Money anchors contain keywords the site is attempting to rank for. Compound anchors contain the brand name as well as another keyword. Organic anchors contain generic keywords such as “click here” or “this site.” Other anchors are those anchors not clearly defined and empty anchors are just that, empty.

When building links for SEO, it can be beneficial to have a percentage of your backlinks using your target keyword as the anchor text. By filtering out your audited links by anchor text you can help to gain those links that have the specific anchor text you are looking for.

After you’ve gone through all of your links in the audit tab and sent them to your disavow, whitelist, and remove lists, you can move on to the next step of your audit.

Profile Insights

The Profile Insights feature is designed to make your backlink audit a little easier by providing actionable tips to help improve a domain's backlink profile. It can be found at the top right corner on any page within the Backlink Audit tool.

Auditing Your Backlinks image 9

Clicking on Insights will open a vertical menu that spans the right side of your screen. This menu calls your attention so specific areas of interest or items that require your attention.

Auditing Your Backlinks image 10

Profile Insight’s recommendations are sorted into three color-coded groups and organized by priority:

  • Pay Attention: Highlighted in red, Pay Attention indicates potentially crucial issues impacting your backlink profile that needs to be reviewed
  • Potential Problem: Highlighted in orange, Potential Problem highlights areas that could be improved to help strengthen your backlink profile
  • Project Settings: Highlighted in blue, Project Settings offers tips on how to configure the Backlink Audit tool for more accurate results and ease of use. 

Issues flagged by Profile Insights will include a brief explanation, illustrating what the issue is and why it may be relevant for you, and a blue call-to-action button. Clicking on the blue button will take you directly to the report, chart, or page within Backlink Audit where you can see the issue for yourself and work to resolve it.  

Next article: Removing Your Unwanted Backlinks