Pillar, Hub, and Page Architecture From Clusters: Turn Topics Into Routeable URL Structures

Cluster Architecture

Pillar, Hub, and Page Architecture From Clusters

Turn topic clusters into a clean site structure. Build pillar pages, hubs, and supporting pages with predictable URLs, descriptive anchors, and clear routes. This guide focuses on information architecture, not analytics reporting.

Updated Aug 2025 • Hands-on playbook

Design my IA Google: crawlable links

Definitions: pillar, hub, page

Pillar

A top-level page that frames a topic and routes to major subtopics. Think of it as the front door for a cluster family. It answers high-level questions, sets scope, and links out. It does not repeat every detail.

Hub

A mid-level page inside a pillar that organizes related children. Hubs live one folder deeper, introduce the subtopic, and list child pages with short descriptions.

Supporting page

A focused page that serves one intent like definition, how-to, template, comparison, pricing, or solution. Each supporting page targets one cluster.

Google’s guidance on helpful content and crawlable links is a useful north star: helpful content, links.

Map clusters to architecture

Each cluster becomes a page or a hub depending on breadth. The head term usually names the pillar or hub. Close variants, questions, and adjacent intents become children.

Cluster	Page type	Why	Children (examples)
Content strategy	Pillar	Very broad topic that routes many subtopics	content calendar, SEO content, briefs, governance
Content briefs	Hub	Multiple intents under a narrow theme	brief template, acceptance criteria, examples
SEO brief template	Supporting page	Single intent and offer	—

Rule of thumb: if a cluster needs more than five meaningful H2s plus distinct tasks, promote it to a hub and split subtopics into child pages.

URL strategy & slugs

URLs should be human readable, stable, and reflect the architecture. Keep them short, use lowercase, and separate words with hyphens. Avoid dates in slugs. Place hubs and children in predictable folders.

Patterns

Pillar: /content-strategy/
Hub: /content-strategy/briefs/
Child: /content-strategy/briefs/template/
Sibling child: /content-strategy/briefs/acceptance-criteria/

Slug rules

One concept per slug
No stop words unless clarity requires them
Prefer nouns or noun plus verb like /audit/plan/

See Google on sitemaps and guidance on URL structure basics.

Routing & internal links

Routing tells readers and crawlers where to go next. Use descriptive anchors, shallow hops, and consistent placement for navigation blocks.

Pillar → hubs

Short intros and a table of hubs
Cards with one line description and CTA
List hubs before individual articles

Hub → children

Alphabetical or task-based grouping
2 to 4 featured children at the top
Contextual links inside sections

Children ↔ siblings

Two related links at the end
Descriptive anchors like “brief acceptance criteria”
Link back to hub near the top

Example HTML block

<nav aria-label="In this hub" class="hub-grid">
  <a href="/content-strategy/briefs/template/">Brief template</a>
  <a href="/content-strategy/briefs/acceptance-criteria/">Acceptance criteria</a>
  <a href="/content-strategy/briefs/examples/">Examples</a>
</nav>

Make links crawlable without JavaScript heavy routers for core nav. See Search Central on crawlable links.

Breadcrumbs & navigation

Breadcrumbs reinforce structure and improve clarity. Keep the path consistent with folders and use structured data.

Visible breadcrumbs

<nav aria-label="Breadcrumb">
  <ol>
    <li><a href="/content-strategy/">Content strategy</a></li>
    <li><a href="/content-strategy/briefs/">Briefs</a></li>
    <li aria-current="page">Template</li>
  </ol>
</nav>

Structured data

{
  "@context": "https://schema.org",
  "@type": "BreadcrumbList",
  "itemListElement": [
    {"@type":"ListItem","position":1,"name":"Content strategy","item":"https://example.com/content-strategy/"},
    {"@type":"ListItem","position":2,"name":"Briefs","item":"https://example.com/content-strategy/briefs/"},
    {"@type":"ListItem","position":3,"name":"Template","item":"https://example.com/content-strategy/briefs/template/"}
  ]
}

See Search Central on BreadcrumbList.

Schema & on-page structure

Schema should match visible content. Pillars and hubs use Article or WebPage with breadcrumb data. How-to or FAQ pages can add specific types when content truly exists on the page.

Pillars

Article or WebPage
Intro, table of hubs, short answers
FAQ only if you show real Q&A

Hubs

WebPage with BreadcrumbList
Section headings per child group
Cards with summary and link

Supporting pages

Article, HowTo, or FAQPage
One H1 with clear promise
Internal links back to hub

Schema docs: Search Central, plus Schema.org.

Templates & components

Reusable templates keep architecture consistent and speed up publishing. Aim for a few smart components that writers can use without design help.

Pillar template

Short overview and problem framing
Hub directory grid with cards
Glossary chips for key entities

Hub template

Hero with one sentence promise
Filterable grid of children
Contextual links and FAQs

Supporting page

Scannable H2s and a steps table
Compact FAQ block near the end
CTA that fits the stage

Sitemaps & canonicals

List only canonical URLs in your XML sitemaps. Keep lastmod accurate. Use self-referencing canonicals and avoid duplicate indexable routes created by filters or parameters.

Sitemap snippet

<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url><loc>https://example.com/content-strategy/</loc><lastmod>2025-08-01</lastmod></url>
  <url><loc>https://example.com/content-strategy/briefs/</loc><lastmod>2025-08-01</lastmod></url>
  <url><loc>https://example.com/content-strategy/briefs/template/</loc><lastmod>2025-08-01</lastmod></url>
</urlset>

Canonical tag

<link rel="canonical" href="https://example.com/content-strategy/briefs/template/">

Docs: duplicate URL consolidation.

Migration from legacy content

Most sites already have overlapping pages. Use your clusters to map legacy URLs to the new structure and ship a redirect plan.

Steps

Assign each legacy URL to a cluster
Pick the canonical target per cluster
Merge or rewrite duplicates as needed
Ship a 301 map and update internal links

Redirect table

FROM                                   TO
/blog/what-is-content-strategy/   →    /content-strategy/
/blog/content-briefs/             →    /content-strategy/briefs/

Hygiene

One hop 301s only
Remove redirected URLs from sitemaps
Fix breadcrumbs and nav links

Redirect best practices: Search Central.

Governance & SOPs

Architecture fails when naming drifts and routes change without a record. Keep a single source of truth and light processes that protect structure while staying fast.

What to standardize

Naming rules for pillars, hubs, and slugs
One cluster equals one supporting page
Anchor conventions for internal links

Change log

New URLs with owner and date
Redirects with from and to
Reasons for promotions to hub or pillar

If you manage multiple languages, pair this with hreflang. See international targeting.

FAQ

How many hubs should a pillar have

As many as the reader needs to cover the topic without repeating yourself. Many pillars land between three and eight hubs. If a hub grows too large, promote it to a pillar.

Do hubs need text or just links

Always add a short intro that defines scope and sets expectations. Then list children with one sentence summaries. Add an FAQ only if it answers real questions.

Where should solution pages live

Keep solution pages in a stable folder like /solutions/ and link them from relevant hubs. Do not bury them under blog paths.

What about pagination and filters

Avoid indexable infinite combinations. Curate filtered pages that offer unique value and give them clear routes. Use canonical and noindex where appropriate.

Need a second set of eyes on your routes and slugs Ask a quick question.