Pieter-Jan Casteels: website, business data and analytics

Responsibility at NaSiam

Pieter-Jan manages the website and checks analyses concerning online visibility, website visits, and other internal business information. When NaSiam publishes its own figures, he states the source, reporting period, and relevant limitations.

Separating internal and external data

Booking-system data, Google Analytics, and Google Search Console can be described as NaSiam’s first-party data. General Belgian market, health, and industry figures remain attributed to their original external source. Pieter-Jan is identified as the compiler or analyst, not as the original authority behind those external figures.

Not a treatment expert

Pieter-Jan does not review massage or medical content. Information about massage techniques, suitability, treatment delivery, and safety boundaries belongs to the practical expertise of Nalita Mangtaku and is attributed to her only when she has actually written or checked it.