Articles & guides
Real numbers, real code, from building and running the EuroScrape Actors.
- Check a hotel’s price on every booking site (and spot rate-parity gaps) without writing a scraper
- Same used iPhone, 62% price gap - comparing second-hand prices across 18 European countries
- 57% of the contract lots I sampled got a single bid - mining EU tenders and award winners from TED
- Find websites running WordPress, WooCommerce or Shopify - and the ones that need your help
- Build B2B lead lists from official company registers (France SIRENE and UK Companies House)
- The same flight cost $362 or $162 depending on the day - building a fare calendar from Google Flights
- Get every new 1-star review of your app in Slack (App Store and Google Play, 58 countries)
- When a Vinted search finds nothing, it quietly shows you popular junk - here is how to detect it
- Zero-rating an intra-EU invoice? Without a VIES consultation number, you may owe the VAT yourself
- France publishes every property sale as open data - most people compute the price per m² wrong
- Night power is not the cheapest, and the cheapest fuel station is often a ghost - two things official energy data taught me
- I matched 2,518 apartment sales to their energy certificates - F and G homes sold 16% cheaper per m²
- Companies file 1 French building permit in 5 and build 3 homes in 4 - and the register names them 8 months before the site opens
- A 4.8-star shop tells you nothing - across 444 German online shops the rating fits in a third of a point, while the share of 1 and 2 star reviews varies 11x
- The median “PlayStation 5” on Kleinanzeigen costs 55 euros - three traps in second-hand price data