Price monitoring
Compare the prices and stock that shops show in each country.
Shops often show prices, currency and stock by the visitor's country. Lines that target one country let you see the page as a local visitor sees it. Rotating lines spread many product checks over many IPs, so one address does not make all the requests.
Keep the request rate reasonable and follow each site's terms.
These are examples of lawful use. Our acceptable use policy lists what is not allowed. Acceptable use