Does internal linking really outperform URL structure for SEO?

Why does Google downplay the role of structured URLs?

URLs have long been considered a major hierarchical signal. It was believed that a structure like /category/subcategory/product would help Google understand site organization.

But Google has evolved. The algorithm now relies more heavily on the internal link graph to map out structure. A flat URL like /product-123 can work perfectly fine if the linking is clean and coherent.

What does internal linking really reveal to Google?

Internal linking acts as a voting system. Each link passes juice, but more importantly, it indicates a relationship of thematic proximity and importance.

Google observes how frequently links point to a page, their position in the site architecture, and the anchor text used. A page receiving 50 internal links is perceived as more important than an isolated page — regardless of its URL.

Do URLs retain any residual SEO function?

Yes, but limited. URLs remain visible in SERPs, they inform the user (thus impacting CTR), and a logical structure facilitates crawling and maintenance.

But Google no longer uses them as the primary signal for hierarchy. The era when a deeply nested URL was automatically perceived as less important is over.

• Internal linking is the dominant signal for mapping site structure
• Structured URLs are no longer a priority hierarchical factor
• A site with flat URLs can perform well if linking is solid
• Google evaluates page importance through density and quality of internal links
• URLs remain relevant for UX and CTR, not for structural understanding

Is this statement consistent with field observations?

Yes, broadly speaking. Tests conducted on flat-URL sites (like e-commerce with SKUs) show that intelligent linking more than compensates for the absence of URL structure.

However — and this is where it gets tricky — many CMS and e-commerce platforms automatically generate both structured URLs and coherent linking. It's difficult to isolate the determining factor under these conditions.

What nuances should be added to this claim?

Mueller doesn't say that URLs have no importance; he says they're secondary to linking. A critical distinction.

A descriptive URL improves CTR, facilitates sharing, aids memorability. It remains a weak signal of thematic relevance through keywords it contains. But it no longer structures the index as it once did.

[To verify]: Google doesn't specify how it arbitrates when there's a contradiction between structured URL and chaotic linking. If your URL suggests one category but your internal links suggest something else, which really takes precedence?

In what cases doesn't this rule fully apply?

On massive sites (millions of pages), URL structure remains a practical tool for segmenting crawl and facilitating technical management. Google Discover and Google News also rely on URL patterns.

And let's be honest: a site with poor URLs AND poor linking will always be in trouble. One doesn't save the other if both are broken.

What should you do concretely on internal linking?

Start by auditing your link graph. Use Screaming Frog or Oncrawl to identify orphaned pages, bottlenecks, and unnecessarily over-linked pages.

Then define a thematic siloing logic: each content hub should point to its child pages and receive links from related pages. Important pages should be at most 2-3 clicks from the homepage.

Optimize anchor text. Varied, descriptive, natural — but above all consistent with the target page's intent.

Should you abandon structured URLs then?

No. Keep a clean and readable URL structure, but stop stressing about depth or perfect hierarchy at all costs.

If your CMS imposes flat URLs, it's no longer a disaster. Compensate with solid linking. If you already have structured URLs, keep them — but invest your energy on linking rather than on cosmetic URL restructuring.

How do you verify your site complies with this logic?

• Crawl your site and identify orphaned pages (0 inbound internal links)
• Analyze internal PageRank distribution: do strategic pages receive enough juice?
• Verify that your important pages are accessible in 3 clicks maximum from the homepage
• Check the consistency of internal link anchor text (avoid over-optimization with exact keywords)
• Ensure each thematic hub links to its child pages and receives contextual links
• Use breadcrumbs and menus to reinforce navigation structure
• Avoid internal nofollow links except in justified cases (login, filters, etc.)