When you link from one page on your site to another, you are doing three things at once: passing authority (link equity) to the destination page, giving Google a signal about how important that page is, and giving users a path to find more relevant content.
Most small business websites have no internal linking strategy — links appear where developers added them during build and nowhere else. This creates orphan pages, uneven authority distribution, and missed opportunities for topical clustering.
According to Google's documentation on crawlable links, Googlebot discovers and crawls pages primarily through links. Pages that are not linked from anywhere else on the site are harder to find, harder to evaluate, and less likely to rank.
Key Takeaways
- Use the pillar-cluster model to organize content: a main pillar page links to cluster subtopic pages, and each cluster links back — this demonstrates topical depth that Google rewards with better rankings.
- Use descriptive, keyword-informed anchor text instead of generic phrases like "click here" or "read more" — anchor text is one of the clearest signals you can send Google about a linked page's topic.
- Link blog articles to relevant service pages — this is the highest-ROI internal linking move for service businesses, passing authority from informational content to your lead-generating pages.
- Find and fix orphan pages (pages with zero internal links pointing to them) by cross-referencing your sitemap against a crawl tool's internal link report, then adding contextual links from 2-3 relevant pages.
1. The pillar-cluster model — content architecture that builds authority
The pillar-cluster model is the most effective site structure for building topical authority. It organizes content around a central pillar page and multiple cluster pages that cover related subtopics in depth.
Pillar page
A comprehensive page targeting a broad, high-value topic. Example: "SEO for Service Businesses." It links out to all cluster pages.
Cluster pages
Pages covering specific subtopics in depth. Example: "Local SEO for Contractors," "Technical SEO Checklist." Each links back to the pillar.
Commercial pages
Your service pages. Cluster pages pass authority to these through internal links. Blog content fuels the cluster, which fuels the commercial pages.
This structure works because it demonstrates to Google that your site has real depth on a topic — not just one isolated article, but a network of interconnected, relevant content. Research from Ahrefs on internal linking confirms that sites with strong pillar-cluster architecture consistently outrank sites with isolated pages, even when those isolated pages have stronger individual content.
2. Anchor text — what you say in the link matters
Anchor text is the clickable text of a link. It is one of the clearest signals you can send Google about what the linked page covers. Descriptive anchor text outperforms generic anchor text in almost every case.
Anchor text hierarchy: best to worst
- Exact match: "SEO services Charleston SC" — strong signal, but use sparingly to avoid over-optimization
- Partial match: "our SEO services" or "local SEO for contractors" — natural and informative
- Branded: "Baldwin Digital's SEO service" — builds brand signals alongside topic signals
- Generic: "click here," "read more," "this article" — sends almost no signal to Google
Anchor text best practices
- Use descriptive, keyword-informed anchor text for most internal links
- Vary anchor text naturally — do not use the exact same phrase every time you link to a page
- Avoid generic anchors like "click here" on any links that matter for SEO
- Do not stuff anchor text with keywords — write it as you would naturally speak it
- Match anchor text to the content of the destination page, not just its keyword
4. Blog-to-service page linking — the highest-ROI internal link move
For service businesses, the most valuable internal linking practice is connecting blog content to service pages. Here is why: blog articles attract top-of-funnel visitors searching for answers. Internal links to your service pages pass that authority and give those visitors a natural path toward becoming a lead.
An example internal linking structure
- Blog: "How to Rank #1 on Google in 2026" → links to → /services/seo.html
- Blog: "Local SEO for Service Businesses" → links to → /local-seo-services/
- Blog: "Technical SEO Checklist" → links to → /services/seo.html and /services/website-design.html
- Service: /services/seo.html → links to → /resources/ (supporting credibility with education)
This creates a content ecosystem where every piece of content serves two purposes: attracting traffic for its own keywords, and supporting the pages that generate leads. Moz's guide to internal linking explains how strategic internal links help distribute page authority across a site and improve crawlability for key pages.
5. Finding and fixing orphan pages
An orphan page is a page on your site with no internal links pointing to it from anywhere else. Even if it is in your sitemap, Google will find it harder to evaluate because no other pages on your site are vouching for it.
How to find orphan pages
- Export all pages from your sitemap or a crawl tool (Screaming Frog has a free tier)
- Export all internal links from the crawl
- Cross-reference: pages in the sitemap that do not appear in any internal link list are orphans
- Fix each orphan by finding the 2-3 most relevant pages on your site and adding contextual links to it
Location pages are a common source of orphans. A business adds 10 city pages, links to them only from a navigation dropdown that is hard to crawl, and wonders why those pages never rank. The fix is straightforward: link to each location page from relevant blog content and service pages.
6. Running an internal link audit
An internal link audit should be a regular part of your SEO maintenance — not a one-time task. As you add content, new linking opportunities appear, and old links may point to pages that have moved or been updated.
Internal link audit checklist
- Crawl your site with a tool like Screaming Frog or Sitebulb to map all internal links
- Find and fix any internal links pointing to 404 pages or redirects
- Identify your highest-authority pages (most external backlinks, most internal links in) and check what they link to
- Identify orphan pages and connect them to relevant content
- Review anchor text across the site — look for overuse of generic or exact-match anchors
- Check that every new blog post links to at least 2 relevant internal pages before publishing
Common internal linking mistakes to avoid
What not to do
- Linking to the same page too many times on one page — diminishing returns; Google devalues repeated links
- Using only navigation links — nav links are less valuable than contextual in-content links
- Ignoring link placement — links earlier in the body content receive more weight than footer links
- Over-linking — pages that link to 50+ internal pages dilute the authority they pass to each
- Forgetting old content — when you publish a new service page, go back and add links to it from existing relevant articles
If your site needs a full SEO review — including internal link structure, technical issues, and content strategy — our SEO service includes a comprehensive audit as the starting point.
Want help building a smarter site structure?
Internal linking strategy is part of every SEO engagement at Baldwin Digital. If you want a site that builds authority systematically instead of accidentally, get in touch.
Frequently asked questions
How many internal links should a page have?
There is no fixed number. The goal is to link contextually to relevant pages when it genuinely helps the reader. For most blog articles, 3-6 internal links is a reasonable range. Service pages often have fewer because they are conversion-focused, not navigation-focused.
Does anchor text matter for internal links?
Yes. Descriptive anchor text tells Google what the linked page is about. Using "SEO services Charleston" as anchor text for your SEO page is more informative than "click here" or "learn more." Vary your anchor text naturally — exact-match anchors on every link look unnatural.
What is an orphan page in SEO?
An orphan page is a page with no internal links pointing to it from anywhere else on the site. These pages are hard for both Google and users to find, even if they are in your sitemap. Fix them by finding contextually relevant pages that should link to them.
Should I link from blog posts to service pages?
Yes — this is one of the highest-value internal linking moves for service businesses. Blog posts attract top-of-funnel traffic. Internal links to your service pages pass authority to those pages and give readers a clear path toward becoming a lead.
What is the pillar-cluster internal linking model?
The pillar-cluster model organizes content into a main "pillar" page covering a broad topic and multiple "cluster" pages covering subtopics in depth. Each cluster page links back to the pillar, and the pillar links out to the clusters. This structure helps Google understand topical depth and authority.