Knowing whether a product is in stock — and when it comes back — is a powerful signal for pricing, assortment and demand planning. The challenge is polling often enough without getting throttled.
Reading availability signals
Availability shows up in several ways across sites, and a robust monitor watches all of them.
- Stock badges and 'add to cart' state
- Variant- and size-level availability
- Backorder and pre-order flags
Polling without bans
Frequent polling from one IP is the fastest way to get blocked. Rotation spreads the load so you can check often and stay invisible.
- Rotate IPs across high-frequency checks
- Back off gracefully on errors
- Target the region you're tracking