E-commerce thematic authority: 7 Backlinko steps for category pages

When a known brand appears nowhere

A Tuesday morning. Marine, founder of L’Herboristerie Moderne, calls me.

Her site offers 900 references of essential oils, hydrosols, and blends. She has brand recognition. Her product sheets are solid. She invests 12,000 € per month in advertising, influence, and content.

She says: « I don’t get it. We do everything right, but our category pages stay invisible. Even our own customers type our name + ‘organic essential oils’ to find us. »

I look at her architecture. 94% of her category pages have zero semantic cocoon.

The finding is clear. Google doesn’t understand her « Essential Oils » section. Each page lives alone. Zero connection between « lavender essential oil » and « essential oils for sleep. » Result: thematic authority at zero.

That’s where the Backlinko method kicks in. The 7 steps that follow, I deployed them for Marine. 8 months later, +310% organic sessions. Without an extra euro in ads.

Step 1: Define your semantic territory

Backlinko insists: to build thematic authority, you must first map all the queries that matter, not just transactional keywords. I call this the semantic perimeter.

Take « best Dutch oven. » Great Jones, a cookware brand, has a gorgeous product, The Dutchess. Tested, award-winning, cited by Vogue and the New York Times. Yet the « best Dutch oven » page escapes them. Why? The category content doesn’t cover the informational intent.

Same trap in e-commerce. Many e-merchants target only product queries. Yet buyers first search for a guide, a comparison, a selection. 57% of Google searches involve questions. (Source: Ahrefs study cited by Backlinko).

For Marine, I:

• Extracted 3,800 real queries in the « essential oils » field via Semrush
• Grouped these queries into 12 intents (guides, symptoms, use cases, safety, storage…)
• Identified 47 exploitable thematic clusters directly on category pages.

The classic mistake: stop at volume keywords. Thematic authority is born from exhaustive coverage, not query count.

Step 2: Segment your catégories into strategic silos

Backlinko talks about core topics and subtopics. For e-commerce, this translates to silos. A silo is a cohesive set of pages answering the same user need, around a « hub » page.

Marine had 42 flat catégories. Zero semantic hierarchy. I restructured into 7 silos, including:

• « Wellness » silo: sleep, stress, focus, menopause, with sub-catégories
• « Family Use » silo: baby, child, pregnant women
• « Seasonality » silo: winter cold, spring allergies, summer bites.

Each silo has a main category page that becomes the hub. Sub-catégories and products aggregate there via internal links. Google interprets this block as a trust island.

This segmentation doubled the number of indexed pages with an average position below 10 in just 3 months.

The key: stop thinking « commercial category, » but semantic hub that educates and converts.

Step 3: Build pillar pages that breathe expertise

The pillar page, per Backlinko, is the most complete content on a topic. It gathers everything to know and links to every sub-page. For an e-commerce site, your pillar can be an enhanced category.

Example: on the « Sleep » silo, the category « Essential oils for sleep » became a 2,400-word hub.

It includes:

• A guide to the 5 essential oils that work for falling asleep (with cited studies)
• A comparison between diffuser, topical, and inhalation methods
• An FAQ generated from customer questions
• Deep links to relevant product sheets.

Gone the basic product grid. It’s a resource. Google sees it as a trusted info page, yet it stays an e-commerce category with purchase buttons.

For Marine, this page drew 14,000 sessions in 6 months, with a 4.7% conversion rate. Before, the simple list did 1,200 sessions at 1.9% conversion.

Step 4: Interlink your pages like a trust brain

Backlinko is clear: thematic authority is built with internal links. But not just any. Links driven by meaning, connecting each sub-page to its hub and sibling pages.

On L’Herboristerie Moderne, I applied star-pattern interlinking:

• The pillar « Sleep » links each sub-category (lavender, chamomile, marjoram, etc.)
• Each sub-category links back to the pillar and to other relevant sub-catégories (e.g., chamomile to anxiety)
• Product sheets target their sub-category, never directly the homepage.

Result: 845 pages linked together by 1,950 thematic internal links. Google crawls this web and grasps that the site « knows what it’s talking about » on sleep.

Interlinking is the backbone of authority.

Step 5: Treat each product sheet as a cluster link

Backlinko talks about content depth. In e-commerce, the product sheet is the final link in the cluster. I embed semantic attributes that stick to the category promise.

For Marine, I enriched each product sheet in the « Sleep » silo:

• schema.org with « mainBenefit » and « targetUser » attributes
• a section « Why this oil helps sleep » citing studies from the pillar page
• links to the hub FAQ and to complementary cluster products.

Result: rich snippets multiplied by 4. Organic CTR jumped from 2.1% to 6.3%.

With my e-commerce clients, I see that 30 well-linked product sheets drive 5 times more traffic than an unstructured cluster over 12 months.

Step 6: Activate the trust bias (DOSE) to seduce AIs

Thematic authority goes beyond crawl. Google and AIs use it to pick their answers.

Guillaume Attias’s DOSE framework (BMO Academy) shows what happens in the buyer’s brain:

• Dopamine: structured, relevant content delivers immediate reward
• Oxytocin: feeling understood strengthens trust
• Serotonin: repeated mastery signals reassure
• Endorphin: stress-free purchase brings pleasure.

If your « Sleep oils » category page shows complete subject knowledge, the buyer stops searching. His amygdala is at peace: he trusts.

AIs prefer sources that cover a topic in depth, with clear structure. Your semantic cocoons attract citations.

Per a Backlinko analysis, sites with complete thematic authority on a cluster are cited 3 times more often in Google SGE responses than sites with isolated content.

Neuromarketing trust: the competitive edge.

Ces chiffres issus du cas L’Herboristerie Moderne illustrent l’impact de la structuration sémantique sur la visibilité et la performance des pages catégories.

Step 7: Maintain and expand — the loop that kills competition

Backlinko says it well: thematic authority isn’t won once and for all. You must maintain your pillars. Each month, an update, a customer question you add, an internal link you refine.

At Marine’s shop, I set a quarterly ritual:

• Analyze new queries around each silo (Semrush + Search Console)
• Add a « 2026 Refresh » block to the pillar with recent data
• Verify interlinking: every new product must tie to its thematic group.

This light rhythm works. After 12 months, the site became the field reference. No competitor followed; they stayed on isolated product sheets.

Thematic authority is like a garden. The more you tend it, the more it grows.

Stéphane Jambu

SEO & AI Engineer

I build growth systems / AI / Neuroscience | 650+ clients · 80 LinkedIn testimonials · 30 years of expertise · 15 years of systems running without me.

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