Online marketplaces track your purchases, browsing, and seller activities. This data powers recommendation engines and advertising.
Side-by-side comparison of privacy scores across major e-commerce marketplaces services.
| Service | Score | Grade | Key Privacy Issue | |
|---|---|---|---|---|
|
E
Etsy
Best in Category
|
58 | C+ | Seller and buyer data used for advertising | View Review → |
|
e
eBay
|
50 | C | Browsing history tracked across partner sites | View Review → |
|
A
Amazon Seller
|
45 | C- | Seller data used to compete with private labels | View Review → |
|
W
Walmart Marketplace
Lowest in Category
|
40 | C- | In-store and online purchase history combined | View Review → |
Complete history of purchases used for targeting and recommendations.
Marketplace may use seller data to launch competing products.
Browsing tracked across partner sites and advertising networks.
Financial information shared with multiple payment processors.
We also analyze e-commerce marketplaces terms of service for consumer fairness issues like billing, cancellation, and liability.
View ToS Watchdog E-commerce Marketplaces →Click through for complete privacy analysis of each service.
If you're worried about how these services are using your data, or need help understanding your rights under privacy laws, I can help.