How many Shopify stores have codes in coupon extensions? We checked the 235 most-visited.
On 8 November 2026, coupon extensions held at least one discount code for 213 of the 235 Shopify stores among the 50,000 most-visited sites. We couldn't find a published study that counts how many stores coupon extensions hold codes for, so we ran one.
91%
of stores had at least one code in a coupon extension (213 of 235)
Benson study,
78%
had five or more codes (184 of 235)
Benson study,
36
codes for the median store, among those with at least one
Benson study,
11,033
distinct codes held across the 235 stores
Benson study,
What we found
On 8 November 2026, coupon extensions held five or more distinct codes for 184 of the 235 Shopify stores among the 50,000 most-visited sites, and ten or more for 173.
Among the 213 stores with at least one code, the median was 36 distinct codes per store. Across all 235 stores, the extensions held 11,033 distinct codes.
Every one of the 235 stores had a record in at least one extension.
Codes held by each extension
| Extension | Stores with codes | Share of stores | Stores with a record |
|---|---|---|---|
| Coupert | 191 of 235 | 81% | 195 of 235 |
| Cently | 182 of 235 | 77% | 235 of 235 |
| Karma | 165 of 235 | 70% | 168 of 235 |
| Capital One Shopping | 145 of 235 | 62% | 157 of 235 |
| PayPal Honey | 89 of 235 | 38% | 163 of 235 |
| RetailMeNot | 61 of 235 | 26% | 86 of 235 |
| hotukdeals | 14 of 235 | 6% | 36 of 235 |
| TopCashback (US) | 10 of 235 | 4% | 51 of 235 |
| TopCashback UK | 9 of 235 | 4% | 32 of 235 |
| Rakuten (US) | 8 of 235 | 3% | 58 of 235 |
| Rakuten UK | 1 of 235 | 0.4% | 9 of 235 |
How the study worked
We took the 50,000 highest-ranked domains in Tranco list 94P72, created on 7 November 2026. Tranco is a research ranking that averages several traffic sources over 30 days, so it ranks domains by traffic signals, not sales.
Of those domains, 238 had a domain or www address resolving to Shopify's storefront servers (23.227.38.0/24). Removing Shopify's own three domains left 235 stores.
On 8 November 2026, we asked 11 coupon and cashback extensions what they held for each store, using each extension's own store lookup: the same one it calls when a shopper lands on the store. We also asked four voucher websites (MyVoucherCodes, Savoo / Savings.com, Vouchercloud, The Independent Voucher Codes); their results are kept apart from the extension figures.
A code counts once per store, however many extensions hold it, matched without regard to letter case. Cently returned a record for every store in the sample.
The results show what the extensions held on 8 November 2026. We didn't try the codes at checkout, so some will have expired or never worked. The lookups cover US and UK extensions, so stores selling elsewhere show fewer.
Sample: Tranco list 94P72. The lookups are the ones behind Benson's free code check.
How many people use shopping extensions?
| Extension | Chrome | Edge | Firefox | Together |
|---|---|---|---|---|
| PayPal Honey | 12,000,000 | 4,654,668 | 282,267 | 16,936,935 |
| Capital One Shopping | – | 5,279,535 | 465,520 | 5,745,055 |
| Avast SafePrice | 5,000,000 | 596,336 | 1,627 | 5,597,963 |
| Coupert | 3,000,000 | 1,583,486 | 208,942 | 4,792,428 |
| Avira Safe Shopping | – | 2,775,719 | – | 2,775,719 |
| Rakuten | – | 1,387,194 | 115,801 | 1,502,995 |
| BuyHatke | 1,000,000 | 179,121 | – | 1,179,121 |
| LetyShops | 1,000,000 | – | 34,457 | 1,034,457 |
| Klarna | 1,000,000 | – | – | 1,000,000 |
| Karma | 500,000 | 156,983 | 7,246 | 664,229 |
| iGraal | 500,000 | 100,709 | 32,334 | 633,043 |
| Wanteeed | 500,000 | – | 19,219 | 519,219 |
The 45.8 million total is a floor, not a head count. Chrome shows a rounded users floor, Edge shows active installs and Firefox shows average daily users. One person can have several extensions, and some US-only Chrome listings can't be read from where Benson measures.
PayPal Honey's Chrome Web Store listing showed 13 million users on 19 October 2026 and 12 million on 8 November 2026.
Measured . "–" means no count could be read on that store.
What this means for your store
If your store is among the 213, shoppers running these extensions can be shown your codes at checkout, whether you meant to share them or not. The extension's affiliate link can take credit for the sale too.
Benson's free code check shows what the extensions hold for any store. Benson detects these sessions, hides extension pop-ups on your storefront and lets only the codes you allow work at checkout, measured against a holdout.
Cite this research
Benson, "How many Shopify stores have codes in coupon extensions?", 8 November 2026, trybenson.com/research.
