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SEO Course / Technical SEO That Supports Discovery / Lesson 15

Module 03 / Lesson 15 · Read, apply, check

Site Architecture and Internal Linking

Design internal paths that help people and crawlers reach important content without manufacturing unnecessary links.

By Adriaan BritsCEO of Sitetrail · MSc Marketing
Former LinkedIn Learning instructor in SEO, Advanced Google Analytics and Google Ads
Course edition: October 2026

Visual explanationWorked examples25-minute practical taskKnowledge check

Organize around real tasks

A useful site structure groups related information in ways customers understand. Category and service pages should explain their scope and provide clear paths to more specific material. Start from what someone is trying to accomplish, not an arbitrary folder depth or a desire to repeat a keyword in every navigation label.

Find isolated and weakly connected pages

An orphan page has no useful internal path from the rest of the site. A sitemap alone does not give visitors a browsing route. Compare a crawl with your intended page inventory and inspect how important pages are reached. Check whether the links are ordinary crawlable links rather than interactions that require unavailable context.

Use contextual references selectively

An article can link to a relevant explanation, product or next step when the connection helps the reader. Descriptive anchors make the relationship understandable. Avoid adding every related page to every article; excessive undifferentiated links create clutter. The purpose is a navigable information system, not a maximal count of internal references.

Maintain the structure as the site changes

New content, retired products and renamed services can leave obsolete paths. Update navigation and contextual links when destinations change. Test the experience on mobile and with keyboard navigation, and keep an owner for important sections. A clear architecture is an ongoing editorial and technical responsibility rather than a one-time sitemap drawing.

Repair an orphaned guide

Before

Home → Products → Product A. Maintenance Guide exists but has no useful inbound internal path.

After

Home → Products → Product A → Maintenance Guide → compatible parts.

Topic route

Home → Advice → Maintenance Guide creates a second meaningful discovery path.

Verification

Check crawlable links, descriptive labels and whether a new visitor can complete the task.

Illustrative site map. Add relationships that help users; a sitemap alone is not a complete navigation service.

See it in practice

Hypothetical example: a training company has useful course pages, but its main navigation links only to a blog and a contact form. Several courses can be reached only through old email campaigns. The team inventories its active offerings, groups them by learner need and creates a clear course overview with links to each relevant detail page. Blog posts discussing a specific skill link selectively to the matching course or a deeper explanation. Retired courses are reviewed for appropriate replacement paths rather than all being pointed at the homepage. A crawl and a mobile walkthrough confirm that important pages now have useful routes. The team can describe the improvement in accessibility without promising a particular ranking increase.

Compare the alternative

Contrast a site that adds a footer containing hundreds of keyword variations pointing to near-identical pages. It creates many links but little understanding. A visitor still cannot tell which page answers the question, and maintenance becomes harder. Consolidating redundant destinations and using a smaller, meaningful hierarchy may serve the audience better than maximizing the number of links visible on every screen.

Avoid this misconception

Misconception: every important page must be exactly three clicks from the homepage. Correction: there is no universal depth rule that substitutes for usefulness. Important information should be easy to find, with structure suited to the size and purpose of the site.

Know the boundary

Large catalogs need filters and categories, while small service businesses may need only a few direct paths. Faceted navigation can create many URL variants, so involve technical specialists when designing it rather than applying a simple brochure-site pattern.

Do this today · 25 minutes

Turn this lesson into a useful action.

Draw the current path from the homepage to three valuable pages. Identify one missing or confusing connection, add a useful route and test whether a new visitor can understand the destination before clicking.

Before you start

Use an authorized page or campaign relevant to this lesson, or work entirely from the illustrative sample below. Record proposed changes as drafts until they are approved and implemented.

Practise with this scenario

Three valuable guides exist, but one is reachable only through an internal search form.

Your steps

  • Draw the path from the homepage to each guide using actual clickable links.
  • Identify the guide without a useful navigable route and the related page from which readers would need it.
  • Draft a descriptive contextual link and an appropriate navigation change if necessary.
  • Test the route with a new reader and confirm the destination is accessible directly.

What better looks like

Before: A valuable guide is isolated behind internal search.

After: A relevant service page links naturally to the guide.

Your working notes

Notes stay in this browser. Download a copy to keep them.

Verify your work

  • Important pages have an intentional internal discovery path.
  • Anchors describe the destination and surrounding context.
  • Obsolete and redundant paths have a documented treatment.

Follow up

Recheck the route after navigation or template updates and monitor whether the destination remains maintained.

Before you move on

Make the decision.

A training site has several valuable course pages that only old email links can reach. Its owner wants to add hundreds of keyword links to every footer. Which alternative best improves both discovery and the visitor’s ability to choose the right course?

Sources and further reading

Google link best practices

Google SEO Starter Guide

Lesson edition 2 · References reviewed 14 October 2026 · Practical exercise reviewed 15 October 2026. Examples are illustrative teaching scenarios.

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