A backlink audit reviews your link profile to identify problems and opportunities. Regular audits help protect rankings and inform your link building strategy.

Why Audit Backlinks?

Audits help you:

Identify toxic links that could harm rankings
Discover link opportunities you didn't know about
Understand your link profile compared to competitors
Track link building progress over time
Prevent negative SEO attacks

When to Conduct an Audit

Schedule audits:

Quarterly for active link building campaigns
After traffic drops that might be link-related
Before major campaigns to understand baseline
When taking over a site (new client or acquisition)

Tools You'll Need

Essential tools:

Ahrefs or SEMrush - Backlink data
Google Search Console - Google's view of your links
Spreadsheet - Analysis and tracking
Google's Disavow Tool - If needed

Step 1: Export Your Backlinks

Gather data from multiple sources:

Export from Ahrefs/SEMrush
Export from Google Search Console
Combine and deduplicate

Different tools have different indexes. Using multiple sources gives a more complete picture.

Step 2: Categorize Links

Sort links into categories:

By quality:

High quality (relevant, authoritative)
Medium quality (decent sites, some relevance)
Low quality (irrelevant, thin content)
Potentially toxic (spam, PBNs, obvious link schemes)

By type:

Editorial links
Guest posts
Directories
Comments/forums
Unnatural patterns

Step 3: Evaluate Individual Links

For each link, consider:

Quality signals:

Is the site legitimate?
Is it relevant to your niche?
Does it have real traffic?
Is the content quality acceptable?

Warning signs:

Foreign language sites (if you don't target that market)
Gambling/adult adjacency
Thin content or scraper sites
Obvious link farms
Sites with thousands of outbound links

Step 4: Identify Toxic Links

Toxic links typically show these patterns:

PBN (Private Blog Network) - Thin content, similar templates, interlinked
Spam sites - Low-quality content, excessive ads, suspicious domains
Paid link schemes - Obvious footprints like "sponsored post" patterns
Negative SEO - Sudden influx of low-quality links you didn't build
Comment spam - Mass link drops in blog comments

Step 5: Analyze Anchor Text

Review anchor text distribution:

Is it natural or over-optimized?
Are there suspicious patterns?
How does it compare to competitors?

Flag any anchors that look manipulative.

Step 6: Compare to Competitors

Benchmark against competitors:

Total referring domains
Link quality distribution
Anchor text profiles
Link velocity (rate of new links)

Identify gaps and opportunities.

What to Do With Toxic Links

Options for handling bad links:

Option 1: Do nothing Google usually ignores obviously spammy links. Small quantities of bad links rarely matter.

Option 2: Attempt removal Contact webmasters to request removal. Low success rate, but worth trying for egregious cases.

Option 3: Disavow Tell Google to ignore specific links. Use sparingly and carefully.

The Disavow Decision

Only disavow if:

You have a manual action for unnatural links
You've experienced clear negative impact from a link attack
You have significant quantities of obviously manipulative links you built or paid for

Don't disavow routinely. Google is good at ignoring bad links automatically.

Creating a Disavow File

If you must disavow:

Be conservative—only include truly toxic links
Disavow domains, not individual URLs for spam sites
Document your reasoning
Submit through Google Search Console

Documenting Your Audit

Record findings:

Total backlinks and referring domains
Distribution by quality category
Toxic links identified and actions taken
Opportunities discovered
Comparison to competitors
Date and next scheduled audit

Finding Opportunities

Audits also reveal opportunities:

Links competitors have that you don't
High-quality sites already linking to you (potential for more links)
Broken or lost links worth recovering
Content topics that attract links

Audit Checklist

Quick checklist for each audit:

[ ] Export backlinks from multiple sources
[ ] Categorize by quality
[ ] Review anchor text distribution
[ ] Identify toxic links
[ ] Compare to competitors
[ ] Document findings
[ ] Take appropriate action
[ ] Schedule next audit

Regular Maintenance

After the initial audit:

Set up alerts for new backlinks
Monitor for unusual activity
Review new links monthly
Full audit quarterly

Ongoing monitoring prevents problems from accumulating.