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bertelsmann-stiftung.de

Checked 2026-10-21 21:38 UTC · first added 2026-10-21

✗Problems found Score 75 of 100

Domain & DNS

warn

25 passed 3 warn 0 failed

Areas

iRegistration !Delegation !Nameservers ✓SOA iDNSSEC !Records

Problems

!

No IPv6

Delegation · None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.

#13
!

Software version disclosed

Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns0.iquer.net: "PowerDNS Authoritative Server 4.8.4 (built Feb 13 2024 21:13:12 by mockbuild@localhost)"; ns1.iquer.net: "PowerDNS Authoritative Server 4.8.4 (built Feb 13 2024 21:13:12 by mockbuild@localhost)"; ns2.iquer.net: "PowerDNS Authoritative Server 4.8.4 (built Feb 13 2024 21:13:12 by mockbuild@localhost)". Hide or replace the version string.

#17
!

Very low TTLs

Records · These records have a TTL below 5m, causing extra queries and slower lookups: A (3m30s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 1h46m13s; resolvers may use either.

#32

Recent checks

!

Full report

Domain & DNS report for bertelsmann-stiftung.de ›

Mail

fail

25 passed 2 warn 1 failed

Areas

✓SPF ✗DMARC ✓DKIM ✓DNSSEC !MX !TLS iBIMI

Problems

✗

Policy: none (monitoring only)

DMARC · DMARC policy is set to 'none', which only monitors but doesn't protect against spoofing. Consider upgrading to 'quarantine' or ideally 'reject'.

#4
!

Single MX host, no backup

MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.

#12
!

Not configured

TLS · MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.

#32

Recent checks

✗

Full report

Mail report for bertelsmann-stiftung.de ›