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15 techniques to improve the SEO of your online store

Written by Antoine Revel | Aug 31, 2026, 6:13:06 PM

Organic search is not just one channel among many for an e-commerce business: it is the channel. Around 40% of e-commerce site traffic comes from organic search, and it alone generates close to 31% of the sector's revenue. In other words, every position gained on Google translates directly into revenue.
In short: to improve the SEO of an online store, focus first on site architecture, optimization of product and category pages, loading speed, internal linking and content that truly answers purchase intent. Here are the 15 techniques our teams apply every day, ordered from the technical foundation up to content.

1. Structure your site in logical silos

Google understands a site through its architecture. A high-performing store is organized in silos: main categories, subcategories, then products. Every level should be reachable in three clicks maximum from the homepage.
A clear structure helps both the visitor find their product and the crawler distribute authority toward your most strategic pages.

2. Optimize your category pages (the real champions)

Many merchants polish their homepage and neglect their category pages. That is a mistake: these are often the pages that capture high-volume commercial queries (« men's running shoes », « corner sofa bed »).
Add a unique 150 to 300-word introduction at the top or bottom of the page, with the main keyword, its variants and links to the subcategories.

3. Write unique product descriptions

Duplicate content is the plague of e-commerce. Copy-pasting the manufacturer's description means condemning yourself to never rank.
Each product page needs an original description that answers the buyer's real questions: materials, dimensions, use cases, care, what sets it apart. It is also what reassures and sells.

4. Handle duplicate content and variants

Sizes, colours, filters: an e-commerce site mechanically generates dozens of near-identical URLs. Without proper canonical tags and URL parameter handling, you dilute your crawl budget and confuse Google.

 5. Speed up loading time

Speed is both a ranking factor and a conversion factor. Aim for an LCP (Largest Contentful Paint) under 2.5 seconds. On mobile especially, every second of latency melts your conversion rate.
Compress your images, enable lazy-loading, limit third-party scripts and adopt modern formats (WebP, AVIF).

6. Nail the mobile experience

Most shopping searches happen on mobile, and Google indexes your site « mobile-first ». A smooth checkout funnel on smartphone is no longer optional.
Tappable buttons, text readable without zooming, thumb-friendly navigation: test your journey the way a real customer would.

7. Optimize your product images

Images are an underused SEO lever in e-commerce. Fill in a descriptive alt attribute on each one (« brown leather ankle boots women », not « IMG_2043 »), name your files explicitly and compress them.
Well optimized, your images also surface in Google Images and Google Shopping, two sources of qualified traffic.

8. Build strategic internal linking

Internal linking circulates authority and guides the buyer toward purchase. Link your blog articles to the relevant category and product pages, with descriptive anchors.
Count 2 to 5 contextual links per 1,000 words, always pointing toward your pages that convert.

9. Target purchase intent, not just volume

A query like « best robot vacuum 2026 » does not call for the same page as « buy Roborock robot vacuum ». The first is commercial (comparison, buying guide), the second transactional (product page).
Align every page with the real intent behind the keyword. This is the number one criterion of modern SEO.

10. Create a blog that feeds your sales

The blog captures top-of-funnel informational queries (« how to choose a mattress ») then redirects to your collections. It is your topical authority engine: the more deeply you cover a universe, the more Google treats you as a reference.

11. Add structured data (schema.org)

Product, Review and AggregateRating markup lets you display price, availability and stars directly in search results. These rich results clearly boost your click-through rate at equal position.
Also add FAQPage and BreadcrumbList markup to strengthen your presence in the SERP.

12. Collect and display customer reviews

Reviews generate fresh, unique content continuously, rich in natural long-tail keywords, and they reassure the buyer. A virtuous circle for SEO and conversion alike.
Integrate them on your product pages with the right markup to make stars appear in Google.

13. Optimize for AI search (GEO)

In 2026, being cited by generative engines (Google AI Overviews, ChatGPT Search, Perplexity) has become as strategic as appearing on page 1. To achieve it: answer questions directly at the start of each section, back every claim with data or a source, and multiply extractable formats (lists, tables, FAQ).
SEO remains the prerequisite: the vast majority of AI citations come from pages that already rank well.

14. Earn quality backlinks

Your domain authority remains a decisive factor, especially on competitive categories. Partnerships, linkable content (guides, studies, original data), PR: quality matters far more than quantity.

A healthy link profile is built over time, never by buying links in bulk.

15. Measure, update, repeat

An article or a product page is never « finished ». Traffic erodes as information ages and competitors publish. Track your positions, CTR and conversions in Search Console and Analytics, then refresh your pages every 3 to 6 months.

FAQ

How long before you see SEO results on an online store?
Generally 3 to 6 months for the first signals, 6 to 12 months for a significant impact on traffic and sales. SEO is a long-term investment, not a switch.

SEO or Google Ads for an e-commerce site?
Both are complementary: Ads bring immediate sales, SEO builds a durable asset that generates traffic with no cost per click. The ideal is to combine them.

Do you need a blog for a store's SEO?
Yes, as soon as your market includes informational searches. The blog captures the audience upstream of purchase and strengthens your authority across your whole product universe.

Does duplicate content really penalize an e-commerce site?
It does not trigger a manual penalty, but it prevents your pages from ranking by scattering signals. Unique descriptions and proper canonical tag handling solve the problem.

Conclusion

Improving the SEO of an online store means advancing the technical side, the content and the authority in parallel, and above all holding that standard over time.