What is Internal Linking

Best practice

Build links around topic clusters and use descriptive anchors so both users and Google understand the destination.

• Link from high-authority pages to priority targets
• Use descriptive, varied anchor text
• Build hub-and-spoke topic clusters
• Fix orphan pages and keep important pages a few clicks from home

Why it matters

Internal linking is the most underused lever in SEO because you have total control over it — no outreach required. Internal links do three jobs at once: they help Google discover pages (crawl paths), they distribute authority ("link equity") from your strong pages to the ones that need it, and they signal topical relationships and relative importance through their structure and anchor text. A page buried with no internal links is effectively invisible; the same page linked from relevant, authoritative pages with descriptive anchors can rank far better with no other change.

• Total control, no outreach — the highest-leverage on-site lever
• Distributes authority from strong pages to ones that need it
• Signals topical relationships and which pages you consider important

Doing it well

The strongest internal-linking strategy is a deliberate topical architecture — hub (pillar) pages linking down to detailed cluster pages, and cluster pages linking back up and across — so authority concentrates on the pages you most want to rank and Google sees clear topic groupings. Use descriptive, varied anchor text, link from within body content (not just navigation, which is largely discounted), and make sure important pages are reachable in a few clicks. Regularly audit for orphan pages (no internal links in) and for your most authoritative pages, which should be linking generously to your priority targets.

• Build hub-and-cluster (pillar) architectures to concentrate authority
• Link from in-content, with descriptive anchors — nav/footer links are discounted
• Keep important pages within a few clicks of the homepage
• Audit for orphan pages and link them from relevant, strong pages

Worked example

A blog has a comprehensive but stagnant guide that will not crack the top ten. An internal-link audit reveals the cause: the guide is nearly orphaned, linked only from a date-based archive, while the site's most authoritative pages link out to unrelated posts. The fix requires no outreach — the team adds contextual links to the guide from three of their strongest, most relevant pages, using descriptive anchor text, and builds a small hub-and-cluster structure linking the guide to related supporting posts and back. With authority now flowing to it from strong, topically-relevant pages and a clear topical grouping signalled, the guide climbs into the top five within weeks. The example shows why internal linking is the highest-leverage on-site lever: total control, no outreach, and often a ranking gain from redistributing authority you already have.