SurfaceMap › u › uni-passau.de

uni-passau.de

Checked 2026-10-22 00:50 UTC · first added 2026-10-21

✗Problems found Score 72 of 100

Domain & DNS

warn

24 passed 3 warn 0 failed

Areas

iRegistration !Delegation !Nameservers !SOA iDNSSEC ✓Records

Problems

!

Glue differs from the zone

Delegation · The addresses at the parent (glue) differ from the addresses in the zone: ns.forwiss.uni-passau.de (glue 132.231.20.100, zone 132.231.20.100, 2001:638:a07:a:1::100). Update the glue at your registrar.

#8
!

Software version disclosed

Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns.forwiss.uni-passau.de: "9.18.49-1~deb12u2-Debian". Hide or replace the version string.

#17
!

Serial date in the future

SOA · The serial 2026102675 looks like a date (YYYYMMDDnn) in the future (2026-10-26). It can only grow, so a wrong date can't be undone without a serial wrap-around.

#26

Recent checks

!

Full report

Domain & DNS report for uni-passau.de ›

Mail

fail

26 passed 3 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
!

Not configured

TLS · MTA-STS or DANE is used without TLS-RPT, so you get no reports when senders fail to deliver because of TLS problems. Publish _smtp._tls TXT "v=TLSRPTv1; rua=mailto:...".

#35

Recent checks

✗

Full report

Mail report for uni-passau.de ›