Internal linking is the practice of linking from one page on your site to another. Unlike backlinks, you control every internal link — which makes internal linking the cheapest, fastest-to-implement SEO lever.
What internal links do
Three things, in roughly this order of importance:
- Distribute authority (PageRank): pages with more inbound internal links get more authority signal from your site to Google.
- Establish topical context: anchor text + surrounding content tells Google what the linked page is about.
- Aid discovery and crawl: pages linked from many other pages get crawled and re-crawled more often.
The pillar-and-cluster model
The dominant content architecture in 2026:
- Pillar pages: comprehensive guides on broad topics (e.g. "the complete guide to meta descriptions"). Long, link to all related cluster pages.
- Cluster pages: focused pieces on subtopics ("how long should a meta description be," "meta descriptions for ecommerce"). Link back to the pillar and laterally to siblings.
This creates a hub-and-spoke graph where authority flows efficiently and topical context is unambiguous.
Anchor text matters
The text of the link is a strong signal of what the destination is about. Avoid:
- "click here" / "read more" — wastes a ranking signal
- The exact same anchor on every internal link to the same page — looks unnatural
- Generic brand names when the linked page is about a specific topic
Use descriptive, varied, query-aligned anchor text.
Common mistakes
- Orphan pages: a page with zero internal links to it usually doesn't rank, period. Audit your site for orphans monthly.
- Top-down only: most sites only link parent → child. Adding sibling links and child → parent links is high-leverage.
- Linking everything to the homepage: homepage already has the most authority. Internal links to deep pages are more efficient.
- No internal links on new pages: when you publish a new post, add internal links from 3-5 existing related pages on the same day. Don't wait.
How to audit your internal link graph
The Report Builder can take a Screaming Frog inlinks.csv export and surface:
- Orphan pages (zero internal links)
- Pages with very few links (under-linked)
- Pages with too many links (link-juice diluted)
- Common anchor text patterns
Doing this audit once a quarter typically uncovers 5-10 quick wins per audit.