Our scan on 4 June 2026 found that yahoo.com routes email through Yahoo DNS, a US-based email security provider.
Infrastructure — scan 2026-06-04
ASN
AS26101
· YAHOO-BF1 - Yahoo Holdings Inc. US jurisdiction
SSL issuer
DigiCert Global G2 TLS RSA SHA256 2020 CA1
Services (US)
None detected
Services (EU)
None detected
A++ (best)F (worst)
today
Only 10 scans on record.
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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 yahoo.com MX
dig yahoo.com A
curl "https://stat.ripe.net/data/prefix-overview/data.json?resource=74.6.143.25"
openssl s_client -connect yahoo.com:443 -showcerts 2>/dev/null | openssl x509 -noout -issuer
Data sources:
RIPE Stat API (ASN lookup)