Methodology and data sources
Last updated: 2026-08-03
In plain terms
We want to be transparent about where our data comes from, how often it refreshes and what its limits are. Availability is always indicative: confirm with the retailer before travelling.
What we monitor
We track portable air conditioners and no-drill split models —including Midea PortaSplit, Cecotec, EcoFlow, De’Longhi, Olimpia Splendid, Daitsu and others— across selected Spanish sources. Current coverage by product and retailer is published on the live radar; it changes as sources are added, removed or quarantined.
We identify each product by its model and EAN barcode, not by title similarity, to avoid alerting on the wrong product.
Sources
Amazon is not used as a stock data source. Any Amazon link is for affiliate or reference purposes only and is labelled accordingly.
- Public product pages and public retailer endpoints that permit reading, including schema.org structured data where available.
- Authorised product APIs or feeds when a retailer or network provides them. A slow source is identified as such and is not presented as an instant reading.
Refresh interval and confirmation
We poll each source at a conservative interval —typically every few minutes— and respect its technical limits. The visible timestamp says when the state was observed; an old reading is not presented as current.
Before creating a restock event we require two consecutive positive readings, except where an authorised integration already provides a confirmed state. If a source accumulates errors, we quarantine it and show “no recent data” instead of converting the failure into “out of stock”.
Subscriber advantage
Paid alerts use confirmed data immediately. The public page and data feed receive the same state 20 minutes later. We do not manufacture scarcity or countdowns.
Limitations
Third-party data can change within seconds and may contain errors. A retailer outage never turns its state into "out of stock": we show the data as unavailable or stale, with its age.
A positive reading does not reserve a unit or guarantee that checkout accepts your postcode. The retailer may sell its last unit between our observation and your visit.
Availability is indicative. Always confirm stock and price with the retailer before travelling or buying.