Fixing Internal Links To and From Product Pages

Why product pages end up poorly linked

On a typical shop, internal links concentrate at the top. The homepage links to main categories, categories link to subcategories, and every page repeats the same menu. Products only receive links from the listing pages they appear on, plus whatever related-product blocks happen to include them. The Internal Link Analysis makes the pattern visible: it measures how many clicks each page sits from the homepage and counts links in and out of each page. For most shops the products are the deepest pages with the fewest incoming links.

Some of that is natural. There are many more products than categories, so each will receive fewer links. The trouble is the avoidable part:

• Links split across several addresses for the same product, so the product's links are spread across duplicates instead of reaching one page.
• Products only reachable through page 9 of a category, or through a "load more" button that crawlers do not press.
• Breadcrumbs that change depending on how a visitor arrived, or that skip the subcategory, so the product's place in the catalogue is unclear.
• Guides and blog posts that never link to products, even though they are often the pages that attract links from other sites.

Choosing which products to show in "related" and "frequently bought together" blocks is a separate job, covered in the product cross-links guide. Products with no links at all are covered in the orphan products guide. This guide deals with the structural routes that every product depends on.

One product, one address in every link

A product can often be reached at several addresses. Search engines usually consolidate them using the canonical tag, but every internal link to a non-canonical version is a link that has to be worked out rather than one that lands directly on the page you want.

Shopify: the collection-aware link

Some Shopify themes build product links with the within filter, which produces the /collections/.../products/... form so the breadcrumb can show the collection. The canonical tag on those pages points to /products/handle, so every collection listing is linking to a duplicate. In the product card snippet, look for something like the first line below and change it to the second:

<a href="{{ product.url | within: collection }}">{{ product.title }}</a>

<a href="{{ product.url }}">{{ product.title }}</a>

Check the theme's related-products and search templates for the same pattern. If you rely on the collection path to show a breadcrumb, use a fixed breadcrumb based on the product's main collection instead, as described below.

Internal campaign tracking

Adding utm_ parameters to links between your own pages creates extra addresses and, in most analytics setups, starts a new session attributed to your own site. Track clicks on homepage banners and promo blocks with analytics events instead, and keep the link itself clean.

Breadcrumbs and the primary category

A breadcrumb trail such as Home › Walking boots › Women's boots › Fellside walking boot gives every product a link back up to its subcategory and category, and gives those category pages a link from every product they contain. That upward flow is one of the most useful internal linking patterns a shop has, and it costs nothing once the template is right.

Problems start when a product sits in several categories. Some themes build the trail from the path the visitor happened to take, so the same product shows different breadcrumbs, or none at all when reached from search. Others pick whichever category was assigned first, which may be a seasonal sale category that disappears next month.

• Pick one primary category per product. It should be the most specific permanent category, not a sale or "new in" collection. On WooCommerce, Yoast SEO and Rank Math both let you set a primary category that their breadcrumbs use. On Shopify, a metafield holding the main collection is a common approach.
• Build the trail from that field, not the visit path. Every visitor and every crawler then sees the same breadcrumb.
• Include every level. Skipping the subcategory leaves it without the links from its own products.
• Make every crumb except the current page a real link.

Breadcrumb markup

Mark the visible trail up as a list, and add BreadcrumbList structured data that matches it exactly:

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "BreadcrumbList",
  "itemListElement": [
    { "@type": "ListItem", "position": 1, "name": "Walking boots", "item": "https://example.co.uk/collections/walking-boots" },
    { "@type": "ListItem", "position": 2, "name": "Women's walking boots", "item": "https://example.co.uk/collections/womens-walking-boots" },
    { "@type": "ListItem", "position": 3, "name": "Fellside walking boot" }
  ]
}
</script>

The structured data describes the trail; it does not replace the visible links. Crawlers follow the <a href> elements in the page, so the breadcrumb must be real links in the HTML.

Category listings that crawlers can page through

Category pages are the main road into products. If a crawler cannot get past the first page of a category, every product beyond it depends on sitemaps and related blocks alone.

• Use real paginated links. Each page of a category should have its own address, such as ?page=2, and be linked with ordinary <a href> links. Google has said it no longer uses rel="next" and rel="prev" as an indexing signal, so the links themselves are what matter.
• Back up "load more" and infinite scroll. Buttons that fetch more products with JavaScript are fine for visitors, but provide the same products at paginated addresses with links a crawler can follow, and update the address as the visitor scrolls.
• Do not canonicalise every page to page one. Page 2 onwards list different products. Pointing their canonical at page one tells search engines to ignore them, and the products only listed there lose their route in.
• Think about page size. Showing more products per page, within reason for speed, shortens the path to the deepest products.
• Add subcategories when a category is huge. A 600-product category with 25 pages is better split into a few meaningful subcategories, each linked from the parent, so products sit two or three clicks from the category rather than twenty.

The fix, step by step

Linking into products from content

Editorial pages, such as buying guides, "how to choose" articles, care instructions and comparisons, are often the pages on a shop that other websites link to. They are also read by people close to a purchase. Both are reasons to connect them to products carefully.

• Link from the point of recommendation. A guide to choosing walking boots that says "for wet upland routes, a fully waterproof leather boot is the safer choice" should link that phrase to the relevant subcategory or to a named product.
• Prefer categories for general advice, products for specific picks. If the guide recommends a type, link to the subcategory. If it names a product, link to the product.
• Keep links current. Products are discontinued more often than guides are updated. When a product is removed, check which articles link to it and point them at its replacement or its category.
• Link back from products to guides where it helps. A short "How to choose the right size" link on a product page, pointing at your sizing guide, helps buyers and completes the loop.

For how to place links inside long articles generally, see the Internal Links Guide. Here the key point is simply that content should lead to products, not only to other content.

Platform notes

Shopify

• Product links in cards, search results and recommendation blocks come from theme snippets. Search the theme for within: collection and review each use.
• Breadcrumbs are not built in to every theme. If yours derives them from the collection in the address, switching to canonical links will remove them, so add a breadcrumb that uses a stored main collection.
• Collection pagination uses ?page= addresses. Check that your theme's pagination outputs real links, especially if it uses a load-more button.

WooCommerce

• If your product permalink base includes %product_cat%, the category chosen for the address matters. Set a primary category in your SEO plugin so the permalink and breadcrumb are stable.
• Check that the shop and category archives paginate with links, and that any infinite scroll plugin keeps paginated addresses available.

Custom and headless shops

• Make sure product links are rendered as <a href> elements in the server-rendered HTML, not only as click handlers in a client-side app.
• Generate product URLs from one function used everywhere, so cards, search, basket and emails all link to the same canonical address.