The backlink audit process: finding and fixing harmful links before they hurt you

Key takeaways

• Most low-quality links are not “toxic.” Google says that in most cases it can assess which links to trust without help, and its SpamBrain system neutralizes unnatural links.
• Google’s disavow guidance limits the tool to sites with a considerable number of spammy or artificial links that have caused, or likely will cause, a manual action.
• Combine Search Console with Ahrefs, Semrush, Moz or Majestic, since no single source sees every link.
• Manual actions appear in Search Console and need cleanup plus a reconsideration request; algorithmic devaluation has no notice and no fix beyond earning better links.
• Review your link profile at least quarterly, focusing on patterns rather than individual links.

Every site collects odd links over time: scraper copies, spam directories and leftovers from old SEO campaigns. Most do no harm. This Emulent guide covers when an audit is worth the effort, how to analyze your profile, when removal or disavow makes sense and how to monitor links going forward.

When should you run a backlink audit?

When there is a specific reason to suspect links are a problem, plus routine reviews.

• You received an “Unnatural links to your site” manual action in Search Console.
• You bought a domain or business, or inherited a site whose previous owners may have built links aggressively.
• A past agency used private blog networks, paid placements or large-scale link exchanges.
• Rankings fell around a spam update. Core updates evaluate many factors, so do not assume links are the cause without evidence.
• You see a sudden surge of spammy links. Google says such attacks rarely work because it ignores most of these links, but it is worth documenting.

Since Google’s December 2022 link spam update, SpamBrain has been used to neutralize unnatural links and detect both sites buying links and sites selling them. Neutralized links simply stop passing credit.

How do you collect and analyze your full backlink profile?

Merge several data sources, then look for patterns.

• Export the Links report from Search Console, including top linking sites and top linked pages. It reflects links Google knows about but exports only a sample.
• Export profiles from Ahrefs, Semrush, Moz or Majestic and deduplicate by linking domain.
• Review each domain for real traffic, topical relevance and whether it is an actual publication.
• Flag manipulation patterns: networks of similar sites, paid-link marketplaces, exact-match anchors across many domains and links from pages that exist only to link out.

Automated “toxic” scores from tools are a starting point and produce many false positives. A small, relevant blog with low metrics is often a perfectly good link.

How do you remove problematic links?

Ask first, where removal is realistic, and keep records.

• Contact the site owner with the linking URL, the link and a short, polite request.
• Send one follow-up after about two weeks, then move unresolved links to your disavow list if a manual action is involved.
• Document requests, responses and dates; Google wants to see cleanup effort in a reconsideration request.

If links came from an agency you hired, ask it to unwind the placements it arranged.

When and how should you use Google’s disavow tool?

Rarely, and only for links you or someone on your behalf created. Google’s disavow help page says to use it only when you have many spammy or artificial links that have caused or will likely cause a manual action, and notes most sites will not need it.

• Do not disavow links just because they come from low-authority sites; you may remove links that help.
• Use the domain: prefix for domains that are entirely spam.
• Upload a UTF-8 or ASCII text file of no more than 100,000 lines and 2 MB through Search Console.
• Expect a few weeks for Google to process the file as it recrawls the linking pages.
• Uploading a new file replaces the old one, so keep a master list and add to it.

How do you build an ongoing backlink monitoring process?

Light, regular reviews catch problems before they grow.

• Set new-link alerts in Ahrefs or Semrush and skim them weekly.
• Run a full profile review each quarter using the same criteria every time.
• Compare your profile with competitors as part of competitive research to find link opportunities you are missing.
• Track new referring domains each month, and investigate sudden jumps you did not earn.

How can the Emulent team help?

Emulent runs backlink audits as part of enterprise SEO programs, separating genuine risks from noise, handling manual action cleanup and building a healthier profile. A caveat: disavowing the wrong links can remove real ranking signals, so treat the tool as a last resort. Contact the Emulent team to review your backlinks.