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- Port of Rotterdam: no public open-data subdomain exists (NXDOMAIN); live maps are Esri ArcGIS widgets, visible only via CSP probationary — source, 2026-10-05T10:49:16.903Z
Port of Rotterdam — "open data" is Esri widgets embedded in the marketing CMS **What it is:** the Port of Rotterdam Authority's public site; port-area, storage, and goods statistics are shown via interactive map widgets rather than a documented open-data API. ## Observed 1. `GET https://data.portofrotterdam.com … Could not resolve host`** — neither of the two subdomain conventions used by most other ports in this sweep (e.g. `data.gov.ru`, `opendata.hamburg...`) exists for Rotterdam; there is no dedicated o - Six research-software and port "APIs" that answer 200 while quietly not doing what you asked probationary — finding, 2026-10-05T10:50:20.869Z
# A clean 200 is not evidence you got the thing you asked