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Duplicate URL SEO Case Study: Fixing Duplicate Scent-Variant URLs That Were Splitting a Perfume Brand’s Rankings

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A perfume brand’s Shopify store had a strong product catalogue, but every scent, bottle size, and gift-set combination generated its own separate, indexable URL for what was really the same product.

Google was crawling and indexing dozens of near-identical pages for a single fragrance. Instead of one strong page collecting all the ranking signal, the brand was quietly competing against itself in its own search results.

Fixing duplicate variant URLs means canonicalizing near-identical product pages so Google indexes and ranks one strong version instead of splitting signals across many. For a campaign like this, typical results are consolidating 60% to 90% of duplicate URLs and recovering organic rankings within 2 to 4 months (illustrative range, not a specific client’s result).

Every filter combination on the product page- scent strength, bottle size, gift wrapping- was generating its own URL. None of these variants had unique content. All of them were eligible to be indexed.

Google had no clear signal for which version to rank. Instead of consolidating authority onto one canonical product page, it was split thin across a dozen near-duplicates, none of which ranked as well as they should have.

We crawled the site the way Google does, and mapped every indexed URL back to its parent product. This showed exactly which variant pages were true duplicates and which needed to stay indexable because they held genuinely different content.

We added canonical tags pointing every duplicate variant back to a single, authoritative product URL, following Google’s own guidance on canonicalization. This tells Google exactly which version to index and rank, instead of leaving it to guess and split signal across all of them.

We’ve fixed this same structural issue for 100+ businesses across e-commerce, professional services, and SaaS, all on 6+ years of white-hat SEO. If your store’s product pages are quietly competing with each other, fix your technical SEO foundation before adding another page of content.

Canonical tags only work fully once internal links agree with them. We updated navigation, collection pages, and cross-links so they pointed directly at the canonical URL instead of scattering clicks and link equity across every variant.

Before, a search for a specific fragrance could surface three or four of the brand's own near-identical pages, none of them dominant. After, one canonical page consistently held the ranking, with the authority of every variant behind it instead of split across them.

Search visibility stopped being split thin across duplicate pages and started concentrating on the pages that actually convert. Crawl budget that Google previously spent re-crawling near-duplicates went toward new and updated products instead.

A search engine can only rank what it can confidently understand. When several pages say the same thing, Google has to guess which one matters, and it often spreads authority thin across all of them rather than committing to one. Removing the ambiguity is what let the real product page rank.

  • Duplicate URLs resolved: typically 60% to 90% of identified duplicates
  • Organic traffic: typically a 20% to 50% increase within 2 to 4 months
  • Ranking position for core product terms: typically improves by 5 to 15 positions
  • Crawl budget freed up: typically 20% to 40% fewer redundant pages crawled per cycle
  • Indexed pages: typically reduced by 30% to 60% while organic sessions rise

If your store generates a new URL for every product variant, you may be splitting your own rankings without realizing it. At Growfactor, this is the same Shopify SEO services approach we bring to any store with a high-variant catalogue, fragrance, fashion, or electronics included.

See how we'd audit your product pages:

and get a plan built around your own catalogue.

For a look at what a similar technical fix did for a different niche, see our client results.