Carrefour vs Welcome to Costco Wholesale
The facts we hold on both, side by side. Checked October 15, 2026.
In short
- Welcome to Costco Wholesale gets more monthly visits than Carrefour: about 27M vs 21M.
- Welcome to Costco Wholesale runs more live Meta ads than Carrefour: 4 vs 3.
- Welcome to Costco Wholesale advertised on more days in the past 12 months: 17 vs 4.
- Carrefour's store is older: created Dec 2016, Welcome to Costco Wholesale's in Aug 2020.
| Fact |  Carrefour | |
|---|---|---|
| Monthly visits (SimilarWeb) | 21M (Sep 2026) | 27M (Sep 2026) |
| Live Meta ads | 3 | 4 |
| Store created | Dec 2016 | Aug 2020 |
| Based in | France | Canada |
| Niche | Food | Mass Merchants & Department Stores |
Questions shoppers ask
- What is the difference between Carrefour and Welcome to Costco Wholesale?
- Welcome to Costco Wholesale gets more monthly visits than Carrefour: about 27M vs 21M. Welcome to Costco Wholesale runs more live Meta ads than Carrefour: 4 vs 3. Welcome to Costco Wholesale advertised on more days in the past 12 months: 17 vs 4. Carrefour's store is older: created Dec 2016, Welcome to Costco Wholesale's in Aug 2020.
- Do Carrefour and Welcome to Costco Wholesale sell the same things?
- Both are listed in related niches: Carrefour in Food, Welcome to Costco Wholesale in Mass Merchants & Department Stores.
Facts from the Meta Ad Library, SimilarWeb, Trustpilot and each store; a fact only one of them has is left out. Is Carrefour legit? · Is Welcome to Costco Wholesale legit?