Internal Links SEO

How it works

An internal link is created using an HTML anchor tag with an href attribute pointing to a URL on the same domain. When a user clicks it, the browser navigates to that page. When a search engine crawler follows it, the crawler discovers the destination page and adds it to the crawl queue.

The anchor text of the link provides context about the destination page. Google uses this text as one signal to understand what the linked page is about. Internal links also pass link equity (sometimes called PageRank) from the source page to the destination, which can help the destination page rank higher.

Internal links are placed in navigation menus, footers, sidebars, and within body content. Contextual links inside content are often more useful than links in boilerplate areas because they appear in a relevant context. For example, a blog post about on-page SEO might link to a related guide on crawlability using descriptive anchor text.

Why it matters

Without internal links, search engines may not discover all pages on a site. Google says every page you care about should have a link from at least one other page on your site. Orphan pages — those with no internal links — are unlikely to be indexed and will not receive link equity from other pages.

Internal links define site architecture and show relationships between pages. A well-structured internal linking scheme helps search engines understand which pages are most important (often called pillar pages) and which are supporting content. This structure also helps users navigate, reducing bounce rates and improving engagement.

They also distribute authority. A page with many external backlinks can pass some of that authority to other pages through internal links. This creates internal link opportunities for boosting weaker pages without needing new external links. For example, linking from a high-authority homepage to a new blog post can give that post a ranking advantage.

Where it changes your decision

• When launching a new page: you must add at least one internal link from an existing, crawlable page to ensure search engines find it.
• When auditing site structure: you should review internal links to ensure important pages are not buried too deep (more than three clicks from the homepage).
• When planning content clusters: you decide which pillar page gets the most internal links and which supporting articles link back to it, reinforcing topic authority.

Common mistakes

• Linking without relevance: if the destination page does not match the context of the source page, users and search engines get confused, and the link provides little value.
• Using vague anchor text like 'click here' instead of descriptive text: this wastes an opportunity to tell search engines what the linked page is about and can hurt the page's relevance signals.
• Creating orphan pages by publishing content without internal links from existing pages: these pages may never be indexed and will not receive link equity.
• Overusing internal links or forcing exact-match anchors in a way that hurts readability: this can appear spammy and may dilute the value of each link.