Ernest Marzá

Crawls the Spanish BOE auction portal and returns each property lot enriched with official cadastral data: floor area, year built, use, coordinates, plus normalised encumbrances, occupancy status and per-square-metre arithmetic. No personal data of debtors or any natural person, by design.

Watches URLs with a CSS/XPath/regex selector or a JSONPath query, filters out timestamps, tokens, counters and other rendering noise, and emits a normalized change event only when the watched block really changed. No change, no event, no charge.

Fetches the same URL under several identities - real browser, declared AI crawlers, anonymous client, datacenter proxy - and returns a semantic divergence score, a cloaking verdict and the diff. Filters timestamps, session ids, nonces, ads and element reordering so only meaningful differences count.

Turn coordinates into a complete solar business case. Monthly production, hourly self-consumption, payback, NPV, IRR and Monte Carlo risk. Models each roof face separately and worldwide. No API keys, free data sources only.