Link Audit —
Internal and External
Where is the link equity going — and is it going to the right places?
What It Is
The link audit covers two dimensions: internal link equity distribution (where authority flows within the site) and external link health (broken inbound links, lost links, toxic link patterns). Internal link auditing identifies under-linked priority pages and over-linked low-priority pages. External link auditing finds broken inbound links leaking authority and identifies any link patterns that could trigger spam signals. Together, these two analyses reveal the complete authority landscape of the site.
Why It Matters
Link audits reveal the hidden authority distribution of a site — and almost always show high-priority commercial pages are significantly under-linked relative to their business importance. Finding 50 broken inbound links pointing to old URLs and implementing redirects can recover significant external link authority with zero outreach required. This is one of the highest-leverage finds in any technical audit: recovering authority that already exists but is currently wasted on 404 pages.
What Goes Wrong
Understanding where audits fail — and why — is the first step to executing them correctly.
Navigation Over-Linking Low-Priority Pages
Global navigation and footer menus linking to every major page equally — distributing homepage authority across dozens of destinations rather than directing it toward the highest-priority commercial pages.
High-Priority Commercial Pages Underlinked in Body Text
Service pages, product pages, and money pages receiving almost no contextual body text links from supporting content — sitting with 0–2 inbound internal links while low-priority pages accumulate links from menus and footers.
Broken Inbound Links Sending Authority to 404s
External links from high-authority sites pointing to old URLs that now return 404 errors — all the authority from those links is lost because no redirect captures it and sends it to the current live page.
Undetected Toxic Link Patterns
High concentrations of exact-match anchor text, sudden link spikes, or links from known link schemes in the backlink profile — patterns that can trigger algorithmic spam signals if they accumulate unaddressed.
The Audit Playbook (Interactive SOP)
Check off each step to track your audit progress live!
Tools
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Screaming Frog
Paid/Free tier | Internal link audit with inlinks count per page and broken internal link detection -
Ahrefs or Semrush
Paid | Full backlink profile, broken external links, lost links, and anchor text analysis — essential for the external link audit dimension -
Google Disavow Tool
Free (via Search Console) | Only use if a confirmed toxic link pattern is identified — disavow should follow a documented audit process, not be applied speculatively
Time Investment
Pro Tip
Broken inbound link reclamation is the easiest external authority win in SEO.
You're not building new links — you're recovering authority that already existed and was lost when a URL changed without a redirect. A high-authority site linked to your /old-page/ URL; that page now 404s; all that authority is wasted. A 301 redirect from /old-page/ to /new-page/ instantly recovers it. Always run broken inbound link analysis as part of every technical audit and implement redirects before doing any new link building — it's faster, cheaper, and more reliable than any outreach campaign.