What a listing selling an animal must include
We look in the listing text for the breeder or establishment number and the animal’s identification number. We check whether they are there, not whether the rest of the listing is true.
Analysis of the data you enteredFreeUpdated on 17.09.2026
Part of this check will come after the legal review: Mandatory data in the listing.
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What you type stays in this page’s memory: it is not stored, not put in the web address and not sent to analytics.
What it checks
- Whether a breeder or establishment number appears.
- Whether an animal identification number (15-digit microchip) appears.
- Whether the seller’s NIF or CIF, if you have it, is well formed.
What it does not check
- Whether the listing data are true.
- Whether the animal exists or is where the listing says.
- Anything about who publishes it: we identify no one.
What to look for in the listing
- A breeder or establishment registration number.
- The animal’s identification number.
- If either is missing, ask for it in writing before paying anything.
Frequently asked questions
What does the law require?
Ley 7/2023 (art. 57.2) requires the listing to include the breeder or establishment registration number and, where applicable, the animal’s identification number. Breeder registration becomes mandatory twelve months after its implementing regulation is approved, so a missing item is pointed out for you to ask about, not treated as a breach.
Is this a formal complaint?
No. It is a check of the text you pasted.
Is the listing text stored?
No. It is used to look for those two items and then discarded.