Only for a discount that is not yet in the shown price. A generic selector here makes every tracked price too low.

Where the refurbished/open-box price is shown. Users who tick “Notify for Resealed items” are alerted on this price too.

What the page shows when the store has no price of its own, only other sellers — Amazon: #unqualifiedBuyBox. Such products then say “No main offer” instead of showing an old price.

Sent with every scrape of this store. Anyone can read these — the config endpoint needs no login. Put only harmless preferences here, such as a currency. Never a login or session cookie.

The store's own search page, with {q} where the search words go. Only used when a user taps “Check other shops” on the phone — never on a schedule.