By Shad Super —

Internal Link Score (Link Grade): What It Means + How to Improve It

What an internal link score (link grade) means, how to measure it, and a checklist to improve internal linking, crawl paths, and rankings.

Internal link score (link grade) guide and improvement checklist
Link Score and SEO Optimization

A "link score" can mean a lot of things in SEO. Some tools use it for backlinks (domain authority, DR, citation flow, etc.). But if you’re trying to move rankings with on-page work, the score you can actually control is your internal link score — how well your own pages connect, distribute relevance, and help Google (and humans) discover your content.

In this guide, we’ll define an internal link score (sometimes called an internal link grade), break down what it’s made of, and walk through a practical checklist to improve it without rewriting your entire site.

An internal link score is a measure of how strong a page’s internal link environment is — both:

  • Inbound internal links: how many relevant pages link to the page (and from how prominent those pages are).
  • Outbound internal links: how well the page links out to related pages using descriptive anchors.

Think of it as the opposite of “orphan content.” A high internal link score typically means:

  • Google can crawl and re-crawl the page easily
  • The page sits in a clear topic cluster (hub + supporting posts)
  • Users can navigate naturally to next steps

Unlike backlink metrics, internal link score is something you can improve directly: adding the right links from the right pages, fixing broken paths, and reducing orphaned content.

Google uses internal links to understand:

  • Discovery: can Google find the page consistently?
  • Importance: do many pages link to it (especially important pages)?
  • Topical relevance: what is the page about (anchor + surrounding context)?
  • Site structure: which pages are hubs, which are supporting, which are utilities?

That’s why internal link score is often the lever that helps “almost ranking” pages move from positions ~11–30 to page one.

There’s no universal number that defines a “good” score. But strong internal link profiles tend to share the same patterns:

1) Coverage: important pages aren’t orphaned

Every important page should have multiple contextual links pointing to it. Orphan pages (0 inlinks) are hard for Google to discover and hard for users to reach. An internal link audit is usually the fastest way to surface these.

Internal links work best when they’re placed inside related content — not in a footer list of 40 URLs. Google uses context to understand relationships between pages, which is why building topic clusters (see internal linking strategy) tends to improve performance over time.

3) Anchors: links describe what the page is about

Generic anchors (“click here”) waste an opportunity. Use descriptive anchors that match intent (without stuffing). If your anchors are repetitive or vague, start with an anchor text optimization pass.

4) Depth: key pages aren’t buried

If your most valuable pages are 5–7 clicks away from the homepage, they’ll often underperform. Internal linking should reduce depth for priority pages and improve crawl efficiency.

Pages that already earn traffic (or have many inlinks) can “lend” visibility to pages that are newer or under-linked. A strong internal link score includes deliberate linking from high-visibility pages into cluster pages and conversion pages.

Broken internal links and long redirect chains create crawl waste and a poor user experience. Fixing these is often one of the quickest wins. Start here: broken links.

Most internal links should be followable. Overusing nofollow internally can weaken discovery and distribution. If you’re unsure where nofollow belongs, review nofollow internal links best practices.

Here are three practical ways to measure internal linking quality, from easiest to deepest:

1) Google Search Console (fast reality check)

In GSC, use the Links report to see which pages receive the most internal links. This won’t show every issue, but it highlights whether your priority pages are actually being supported.

2) A crawler (Screaming Frog, Sitebulb, etc.)

Run a crawl and export:

  • inlinks per URL
  • crawl depth
  • broken internal links (4xx)
  • redirect chains
  • orphan pages (crawl vs sitemap)

This gives you the raw data to build an internal link scorecard.

If you want a faster workflow than spreadsheets, you can grade your internal links and spot gaps quickly with the free internal link grader. The key benefit is turning findings into fixes — not just a report.

  • Content publishes without link updates: new posts go live, but older relevant posts never link to them.
  • Sitewide links drown out context: navigation links help, but they don’t replace contextual in-content links.
  • Too many irrelevant links: linking every paragraph to a marginally related page can dilute topical focus.
  • Broken links accumulate: content updates, URL changes, and migrations quietly create 404s.
  • Orphan clusters: a set of posts link to each other but have no connections from the rest of the site.
  1. Pick 5–10 priority pages (pages you want to rank or convert).
  2. Find orphan / under-linked pages and assign them “parent” pages that should link to them.
  3. Add 3–10 contextual links to each priority page from relevant supporting posts.
  4. Upgrade anchors so they describe the destination clearly.
  5. Link from winners to opportunities: add links from pages with traffic to pages that need visibility.
  6. Create (or strengthen) hub pages that list and connect supporting content.
  7. Reduce crawl depth for priority pages (hub pages + navigation + contextual links help).
  8. Fix broken and redirected internal links (and avoid creating new ones during content updates).
  9. Refresh linking when you refresh content — every update should include a quick link pass.
  10. Automate where it makes sense. On sites with hundreds of pages, manual linking becomes a bottleneck. Tools like automatic internal linking workflows can keep link health improving continuously.
  • Every priority page has multiple contextual inlinks
  • Anchors are descriptive and varied (without stuffing)
  • No critical pages are buried more than ~3 clicks deep
  • Broken internal links are fixed (or redirected cleanly)
  • Topic clusters link naturally between hub + supporting posts

FAQ

No. DR/DA-style scores are mostly about backlinks. Internal link score is about how your own site architecture and contextual linking support discovery, relevance, and navigation.

How many internal links should a page have?

Enough to help the reader. Many pages naturally support 3–10 contextual internal links. What matters most is relevance and placement, not hitting a specific number.

Generally, no. Internal links are usually meant to be followed for crawling and discovery. Use nofollow only in edge cases (like login paths, certain filtered pages, or when you’re intentionally preventing crawling).

How long until internal linking improvements show results?

If the pages are crawled frequently, you can sometimes see movement within a few weeks. On deeper sites, it may take longer — which is why improving crawl paths and reducing depth tends to accelerate results.

If you want a fast baseline, run your site through the internal link grader. If you need faster indexing on updated pages, you can also review the Priority Indexer workflow.

Want to fix internal links at scale? See plans here: linkbot.com/pricing.