internal linking
Also called: internal links, site interlinking, internal link building, contextual linking
Internal linking is the practice of adding hyperlinks from one page of a website to another page on the same site. These links help search engines discover pages, pass ranking signals like PageRank between them, and help users navigate.
Google discovers most pages by following links from pages it already knows. Its documentation puts it plainly: “Other pages are discovered when Google extracts a link from a known page to a new page,” for example a category page linking to a new post. A page with no internal links pointing at it (an orphan page) is hard for crawlers to find and gets no authority from the rest of the site.
Three things that make an internal link work
Crawlable format. Google follows a link reliably only when it is an <a> element with an href attribute. Buttons or JavaScript click handlers with no real href often get skipped.
Anchor text. The visible link text tells search engines what the target page is about. Google’s guidance: “Good anchor text is descriptive, reasonably concise, and relevant.” Skip “click here,” and do not cram keywords.
Authority flow. Internal links route PageRank around your site. Linking from your strongest pages to the ones you want to rank concentrates that signal where it counts. There is no ideal link count. Google’s own line: “if you think it’s too much, then it probably is.”
For AI search, the same structure carries weight. Answer engines still crawl your site and lean on links plus surrounding context to work out how pages relate. Clean internal linking that groups related pages into clear topics helps both classic rankings and being cited in AI answers, though the exact weighting AI systems give internal links is not publicly documented, so treat that part as directional rather than measured.
How it affects your traffic
Internal linking is one of the few ranking levers you fully control, with no outreach required. Adding contextual links from high-traffic pages to under-performing ones can lift the target's rankings within a crawl cycle, and fixing orphan pages gets stranded content indexed at all. For funnels, links from blog posts into your service and product pages route both crawler authority and human clicks toward the pages that actually convert. Our On-Page SEO work audits your link graph, kills orphans, and rewires anchors so signal lands on the pages that make money.
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