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Is IONOS EU-sovereign?

Yes. IONOS is operated from Germany, has no non-EU parent company and runs its own infrastructure, so staysin.eu classifies it as EU-sovereign.

EU Germany Classified 2026-10-21

Curator's note

Majority owned by United Internet AG (Germany).

How staysin.eu classifies IONOS

A provider counts as EU only when all three criteria hold:

  1. Country: the operating company is based in the EU. IONOS is operated from Germany (EU).
  2. Holding: no non-EU parent or holding company. IONOS has no non-EU parent.
  3. Own infrastructure: it runs its own stack rather than reselling a non-EU service. IONOS runs its own infrastructure.

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.

How often staysin.eu sees IONOS

Seen on 938 of 10871 checked domains (latest check per domain, as of 25 October 2026): as hosting on 332, as DNS on 673, as mail (MX) on 299, as CDN on 15, as mail sending (SPF) on 93, as third-party requests on 122.

Domains are those people chose to check on staysin.eu, not a representative sample of the web.

Recently checked domains using IONOS: