How it finds the price
On each check Site Spy reads the page’s structured product data — LD-JSON, microdata, and OpenGraph product properties — to pull out price, currency, and stock status. Most large shops publish this because search engines require it, so it usually works with no configuration. If a page publishes no structured data, or publishes several conflicting prices for one product, this mode cannot read it. Fall back to ordinary text monitoring with a filter aimed at the price element — see CSS & XPath Filters.Options
A typical restock watch is availability-only. A typical price watch sets a below-price target and a threshold to filter out noise.
Turning it on
Price and restock monitoring is set through the API by creating a watch withprocessor: restock_diff, along with in_stock_only, follow_price_changes, and price_change_threshold_percent. Bulk import accepts the same processor for a whole list of product URLs at once.
The easiest route without touching the API is the Community directory: clone a published restock watch for a shop you use and the mode and its settings come with it.
There is no dashboard control for this mode yet — the watch settings dialog covers text monitoring only. Existing price and restock watches keep working and show as “Re-stock detection” on share and community pages.