Albert Heijn scraper for prices, Bonus offers and products

Fields in our Albert Heijn product database

An ah.nl product page is unusually complete for a supermarket: label, nutrition table and supplier address are typed out as text, not left inside photos. Each product lives at an address with a wi code - /producten/product/wi100843/ah-american-hotdogs - and the bottom of the page shows Albert Heijn's own product number next to the GTIN, the barcode printed on the pack. What we extract:

• Identity - wi code, URL, product number, GTIN, and the breadcrumb from Producten down to the leaf, for example Soepen, sauzen, kruiden, olie, then Vleesconserven and Knakworsten, ending at Knakworst.
• Product - name, brand from the "Alles van" link, own brand or manufacturer brand, size as sold (560 g, 20 stuks, 3 x 25 g), description and highlight bullets.
• Price - shelf price, the unit price from the "Prijs per" line (Prijs per KG on a tin of hotdogs), and the crossed-out price while an offer runs.
• Bonus - offer label (1+1 gratis, 25% korting, voor 2.49), when it applies (vandaag, vanaf maandag) and the "Combineer nu" link on offers that let you combine products.
• Packs - multipacks under "Dit product in een pakket" with their volume voordeel and whether each is sold online or "Alleen in de winkel".
• Labels - Nutri-Score letter, Kenmerken such as Beter Leven 1 Ster or Glutenvrij, and whether the product falls under the Prijsfavoriet, Biologisch, Veganistisch or Nieuw filters of its category.
• Food information - ingredients, allergens split into Bevat and Kan bevatten, nutrition per 100 g with reference intake percentages, net content, drained weight, portion size and number of portions.
• Use and origin - preparation, storage, country of production, and the supplier's name and address.
• Status - "Uit het assortiment" for delisted products, which we keep rather than drop.

Category listings already show name, price, size and Bonus label on every card, so a full sweep can start from the category tree and open product pages only where label data is needed.

Albert Heijn price tracker, Bonus weeks and stores

Beyond the single product, three more parts of ah.nl are worth collecting, and repeated runs add a fourth layer.

• The Bonus week. The Bonus page covers one week from Monday to Sunday - "31 aug t/m 6 sep" - and says on which day next week's offers become visible. Offers are grouped per department (Bier, Koffie, Wijn, Wasmiddel, Luiers) and collected in the Bonusfolder. Personal offers in Mijn Bonus Box and anything marked "Login om te bekijken" stay out; the national Bonus is public.
• Listing facets. Every category page counts its products per filter - Bonus, Prijsfavoriet, Nieuw, Biologisch, Veganistisch, Vegetarisch, Diepvries - and can be sorted by price. Saved per run, those counts show how much of an aisle is on offer in a given week.
• Stores. Each store page, numbered like /winkel/1026, gives format and street name, address, postcode, town, phone, opening hours for this week and next, and store services such as Zelfscan, Pakket afhalen en terugsturen, Geldautomaat and the ah.nl servicepunt.
• History. Each run is a dated price list; repeated runs keyed on the wi code give an Albert Heijn price history per product with Bonus weeks marked, and from there a price index for any basket you define.