Do keywords in URLs really impact your SEO?

Why does this statement challenge years of SEO practices?

For over a decade, URL optimization has been regarded as a cornerstone of on-page SEO. Thousands of guides recommended including your main keyword, avoiding dynamic parameters, and creating readable structures. Mueller sweeps this edifice aside: the weight of keywords in URLs is insignificant.

This assertion does not mean that Google completely ignores URLs. It means that their contribution to scoring is so marginal that it no longer deserves your strategic attention. Modern algorithms understand a page's content through hundreds of other signals — the title, Hn tags, body text, named entities, and semantic context.

Why does Mueller note that CMSs use keywords for convenience?

Most content management systems automatically generate URL slugs from the page title. This is not to please Google — it’s to facilitate human maintenance. A developer seeing /seo-strategy-ecommerce in their logs instantly understands which page it is, unlike /p?id=4782.

This practice offers a clear organizational benefit: clear architecture, simplified debugging, and descriptive URLs in social shares. But don’t confuse operational utility with ranking signals. One does not imply the other.

Is the distinction between page URLs and image files consistent?

Mueller introduces a crucial nuance: for images, keywords in the filename remain helpful. Why this difference? Because Google has less textual context to understand an image file. Alt text helps, of course, but robot-vacuum-cleaner.jpg provides an additional signal that IMG_2847.jpg does not.

This distinction reveals Google's logic: keywords in filenames fill an information deficit. For an HTML page, this deficit does not exist — the content itself is explicit enough.

• The SEO weight of keywords in web page URLs is negligible according to Google.
• Descriptive URLs remain valuable for maintenance, analytics, and UX, not for ranking.
• For images, name your files with clear descriptive terms — this is the confirmed exception.
• This position reflects the evolution of algorithms towards a semantic understanding of content rather than surface signals.
• CMSs that generate clean URLs do so for architectural reasons, not pure SEO.

Does this statement align with real-world observations over the years?

Frankly, yes. Since the rise of RankBrain and BERT, we have seen pages with generic URLs (/page-123/) rank perfectly fine if their content is solid. Conversely, stuffing a URL with keywords has never saved a mediocre page. A/B tests conducted by several agencies show statistically insignificant ranking variations after URL rewrites.

That said, correlation does not imply causation. If your URLs naturally contain your keywords (because your title is optimized and your CMS generates the slug from that title), you benefit from overall consistency which sends positive signals. But it’s the whole that counts, not the URL in isolation. [To verify]: Google has never published numerical data on the exact weight of this signal — Mueller speaks of insignificance, not absolute zero.

In what cases might this rule not fully apply?

First case: multilingual or multi-regional sites. A URL like /fr/running-shoes/ vs /en/running-shoes/ helps Google understand the language and geographical target — but it’s more of a structural signal than pure keyword signal. The distinction is subtle.

Second case: image search. Mueller explicitly states it — descriptive filenames help. If you sell 10,000 products, the difference between product-1234.jpg and black-leather-sofa-3-seater.jpg can translate to thousands of organic visits on Google Images. This is a lever that too many sites still neglect.

Should you then abandon all consideration of URLs?

No. A clean URL architecture facilitates crawling by Googlebot, improves click-through rates in SERPs (a readable URL inspires trust), and simplifies your analytics. If you’re launching a new site, opt for short, readable URLs without unnecessary parameters. But don’t spend hours rewriting your existing URLs hoping for a ranking boost — that’s time better spent elsewhere.

A point of caution: poorly managed URL migrations can destroy your visibility, not because the new URLs are less “optimized”, but because 301 redirects are poorly implemented or Google takes time to re-crawl everything. The operational risk far outweighs the theoretical gain.

What concrete changes should you make to your current SEO strategy?

Stop over-optimizing your URLs. If your CMS automatically generates slugs from your titles, let it do its job. Don’t force the inclusion of keyword variations if the title doesn’t naturally contain them. Focus your energy on the content, Hn structure, and internal linking — proven impact levers.

For images, however, establish a naming process. Before upload, rename your files with descriptive terms separated by hyphens. If you manage an e-commerce site with thousands of product visuals, automate this task via your PIM or import script. It’s a technical undertaking, but the ROI in Google Images traffic can be substantial.

What critical mistakes should you avoid following this statement?

Don’t fall into the extreme of creating completely random or cryptic URLs. A URL like /a7f9k2p adds nothing — neither to SEO, nor to the user, nor to your teams. Google won't penalize it directly, but you complicate your own life for zero benefit.

Another trap: launching a massive URL migration thinking you’re correcting an “SEO flaw”. If your current URLs are working (= generating traffic), don’t touch them without a solid strategic reason (a complete site overhaul, domain merges, etc.). Each redirect is a potential friction point.

How do you audit your current practices and prioritize your efforts?

Start with a complete crawl of your site (Screaming Frog, Oncrawl, Botify). Identify the pages generating traffic with “non-optimized” URLs — this will confirm that their ranking does not depend on the URL structure. Then, check your image naming: how many have generic names like IMG_xxxx.jpg? That’s where the quick win lies.

If you find major inconsistencies (URLs with unnecessary parameters, duplicates, paths changing without redirects), fix them — but for architectural and UX reasons, not for pure ranking. The clarity of your structure eases crawl and improves user experience, which indirectly supports your overall SEO.

• Keep your current URLs if they generate traffic — don’t migrate without a solid strategic reason.
• Set up your CMS to automatically generate clean slugs from page titles.
• Establish a strict naming convention for all your image files: descriptive, hyphens, no accents or special characters.
• Automate renaming images during product import if you manage a large e-commerce catalog.
• Audit your existing URLs for duplicates, unnecessary parameters, or poorly redirected paths — correct for technical reasons, not SEO.
• Reallocate the time saved from URL optimization towards content, internal linking, and acquiring quality backlinks.