Yes. World4You is operated from Austria, has no non-EU parent company and runs its own infrastructure, so staysin.eu classifies it as EU-sovereign.
Part of IONOS Group (Germany) since 2018.
A provider counts as EU only when all three criteria hold:
Where a server physically sits is shown on each check but does not change the verdict: legal reach follows who controls the processing, not where the bytes are. Read the methodology.
Seen on 17 of 10871 checked domains (latest check per domain, as of 25 October 2026): as DNS on 17.
Domains are those people chose to check on staysin.eu, not a representative sample of the web.
Recently checked domains using World4You: