Originally published: February 3, 2022 · Last updated: August 17, 2026
Search engines do not see pages as isolated documents. Links connect pages into a graph that helps users and crawlers discover resources and understand relationships between them. Google’s current ranking-systems guide still identifies link analysis and PageRank as part of its core ranking systems, while noting that PageRank has evolved substantially since Google’s early years.
Internal links describe your own structure
An internal link tells users and search engines that another page is relevant in the current context. A well-linked site makes important pages reachable through logical navigation and contextual links rather than relying only on a sitemap.
Internal links are especially useful for connecting detailed articles to broader hubs, products to supporting guides and older resources to newer updates.
Anchor text provides context
A descriptive link such as “WordPress backup guide” communicates more than “click here.” Use language that helps the reader predict the destination. Do not force the same exact-match phrase into every link simply because it contains a target keyword.
External links can support evidence
Linking to a primary source, specification or relevant reference can help readers verify a claim. There is no reason to avoid useful external links out of fear that they somehow “leak” all of a page’s SEO value.
Inbound links are not all equivalent
A link from a relevant page that people actually use is different from thousands of automated directory links. Google’s spam policies specifically address links created primarily to manipulate rankings. Evaluate links by context, editorial reason and real-world relevance rather than raw counts.
Site architecture creates link concentration naturally
Pages linked from main navigation, category hubs or many relevant articles tend to occupy important positions in the site’s internal graph. That should reflect genuine importance. Adding hundreds of artificial footer links to every page is not a substitute for coherent information architecture.
Orphan pages are a warning sign
If a useful page has no internal links pointing to it, ask why. Perhaps it is obsolete, perhaps it belongs in a hub, or perhaps the site’s navigation has failed to represent an important relationship.
Bottom line
Think of links as relationships, not points. Internal links express site structure, external links support context and evidence, and inbound links can signal that other sites find a page worth referencing. Build a graph that makes sense to users first and search engines can follow the same structure.
Sources: Google ranking systems guide, Google SEO Starter Guide.