Most SEO talk is about external links. These are backlinks from other sites. They tell Google your site has authority. But internal links matter just as much. These are the links between pages on your own site. And you control them fully. That is what good internal linking SEO is about. Every page you publish can help another page. It can pass authority. It can pass topic context. It can pass crawl signals. So it can lift the pages you most want to rank. Yet most sites link at random. They leave a lot of ranking power on the table.

Google reads your internal links in two ways. First, it learns which pages matter most. More internal links to a page means that page looks more important. Second, it learns how your topics connect. Say a link uses the anchor text "email marketing for e-commerce." That link passes topic context, not just authority. So your internal links act like a map. They show Google what matters most. They also show how your topics link up.

How do internal links pass authority between pages?

Internal links pass PageRank from one page to another. PageRank is Google's core authority score. So the link moves authority from the linking page to the target page. Now think about a page with many strong backlinks. That page holds real authority. Each internal link from it gives a slice of that authority to the next page. This is why your homepage matters so much. Your top blog posts matter too. They have built up authority. The pages they link to inherit some of it.

What is anchor text and why does it matter for internal links?

Anchor text is the words you can click in a link. For internal links, it is a clear topic signal to Google. It tells Google what the target page is about. The signal comes from the linking page's point of view. Say you link to your service page. The anchor text "SEO services for small businesses" is a strong signal. It beats "click here" or "learn more." So use clear, keyword-rich anchor text. Just keep it natural in the sentence.

Your internal links are a private editorial layer. Only you control them. Used well, they give you a ranking edge. Rivals can't copy it without knowing your structure and intent.

Which pages should receive the most internal links?

The pages you most want to rank should get the most internal links. For most businesses, these are your commercial pages. Think service pages, product pages, and pricing pages. So make them the most linked pages on your site. Blog posts and guides have two jobs. They earn external links. They also pass authority to your commercial pages. People call this the "hub and spoke" model. Blog posts are the spokes. They pass authority back to the service page hubs through internal links.

How do you audit your current internal linking?

Crawl your site with Screaming Frog SEO Spider or Ahrefs Site Audit. Look for two reports. The first is inlinks. It shows how many internal links each page gets. The second is orphaned pages. These are pages with zero internal links. Your top commercial pages should sit near the top of the inlinks count. A page with zero internal links is invisible to Google's authority flow. Fix those first. Next, check "link depth." This is the number of clicks from the homepage to a page. Pages more than three clicks deep are under-invested. Add internal links from shallower pages to bring them closer to the surface. This ties to site architecture. Your architecture sets the channels that internal link authority flows through.

How many internal links per page is too many?

There is no hard limit. But each extra link cuts the share of authority that every link passes. A page with 100 links passes less per link than a page with 10. In practice, editorial links work best. These are links set inside your body content, not in site-wide navigation. So keep navigation links as lean as you can. In body content, link where it helps the reader and adds topic context. Don't force links that read in a clunky way.

Should you link from old content to new content or only the reverse?

Both directions matter. Linking from new content to old content is easy. You are just pointing to what you already covered. But there is another move that most sites skip. Go back to old, high-authority posts. Update them to link forward to your new content. So when you publish a new article, spend 10 minutes on this. Find three to five older posts where a link to the new piece adds value. Then add those links. The new page inherits authority from your established content right away. It does not start at zero.

Do internal links affect how fast new pages get indexed?

Yes, they do, and directly. Google's crawler finds new pages mainly through links. Say a new page is linked from a page Google already indexes and crawls often. Google will usually find and index it within days. Now take a new page with no internal links. Google may not crawl it for weeks. That is true even if it sits in your sitemap. So the fastest way to get a new page indexed is simple. Link to it right away from an established page that Google crawls often. Your homepage or a popular blog post works well.

Keep reading

Internal linking is one part of a bigger technical picture. The technical SEO checklist puts a linking audit among its 15 fixes. For the architecture side, site architecture and URL structure shows how the hierarchy decides where authority builds up. And on timing, how long SEO takes lists internal link work among the faster-acting changes.

Why Through The Glass Creatives

Understanding the strategy is the easy part. The hard part is doing it at a level that moves your business. That is where most teams stall. And that is the work of Through The Glass Creatives. TTGC is a premium brand, growth, and AI/development studio. The team blends elite brand thinking with hands-on technical work. That mix is rare. It is also why TTGC can deliver work like this the right way. Book a free Brand and Growth Assessment to see how.