Fritz-Felsenstein-Haus e.V.
F
EU hosting · US email +
services
Our scan on 3 July 2026 found that felsenstein.org routes email through Microsoft 365, a US-based email security provider.
Infrastructure — scan 2026-07-03
ASN
AS8741
· ratiokontakt ratiokontakt GmbH Unknown
SSL issuer
Sectigo Public Server Authentication CA DV R36
Email (MX)
Microsoft 365
US
Services (US)
Google AJAX CDN
Google APIs
Services (EU)
None detected
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today
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Change log
No changes detected yet. Monitoring daily.
Methodology note: This report reflects a point-in-time automated scan of
public infrastructure data — DNS MX records, ASN routing via RIPE Stat API, SSL certificate
issuer, and HTML pattern matching against known service signatures. It is not a legal
determination of GDPR compliance or any regulatory obligation. Infrastructure can change at
any time; the grade reflects configuration at scan timestamp only. Scan data is reproducible.
View full methodology →
Reproduce this scan
dig felsenstein.org MX
dig felsenstein.org A
curl "https://stat.ripe.net/data/prefix-overview/data.json?resource=212.223.26.38"
openssl s_client -connect felsenstein.org:443 -showcerts 2>/dev/null | openssl x509 -noout -issuer
Data sources:
RIPE Stat API (ASN lookup)