abendzeitung.de

Checked 21 October 2026, 21:27 UTC · via 8.8.8.8
!Passed with warnings
20 passed 3 warnings 0 failed 6 info

Registration

info

.de country-code

Found

TLD
.de (country-code)
ICANN policies apply
no

Checks

  • i
    .de is a country-code TLD (ccTLD)
    Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry.
    #1
  • ✓ TLD delegated and signed #2
    .de is delegated in the root zone and DNSSEC-signed.
  • i
    Registration data not available
    No registration data via RDAP: the registry of .de offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.
    #3

Delegation

warn

ns1.idowa.de, ns2.idowa.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.idowa.de, ns2.idowa.de
NS in the zone
ns1.idowa.de, ns2.idowa.de
NameserverAddressesNetwork (AS)Glue
ns1.idowa.de217.7.81.136AS3320 DTAG - Deutsche Telekom AG, DE-
ns2.idowa.de217.7.80.40AS3320 DTAG - Deutsche Telekom AG, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.idowa.de, ns2.idowa.de.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ No glue needed #8
    All nameservers are outside the zone, so no glue records are needed.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 2 IPv4 /24s and 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS3320 (DTAG - Deutsche Telekom AG, DE): 2 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • i
    All nameserver names under .de
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

warn

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.idowa.de 217.7.81.136NOERROR, 6 ms, authoritativenoyes / yesrefused9.18.41-1~deb12u1-Debian
ns2.idowa.de 217.7.80.40NOERROR, 5 ms, authoritativenoyes / yesrefused9.18.41-1~deb12u1-Debian

Checks

  • ✓ All respond #14
    All 2 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.idowa.de: "9.18.41-1~deb12u1-Debian"; ns2.idowa.de: "9.18.41-1~deb12u1-Debian". Hide or replace the version string.
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✓ TCP supported #19
    All nameservers answer over TCP.
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2026093002 · primary ns1.idowa.de

Found

Primary (MNAME)
ns1.idowa.de
Contact (RNAME)
dns.idowa.de
Serial
2026093002
Refresh / retry
86400 s / 7200 s
Expire
2419200 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
ns1.idowa.de (217.7.81.136)2026093002
ns2.idowa.de (217.7.80.40)2026093002

Checks

  • ✓ Serial 2026093002 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 2h, expire 28d, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.idowa.de is one of the listed nameservers.
  • ✓ Contact dns@idowa.de #25
    The SOA RNAME dns.idowa.de means dns@idowa.de.
  • ✓ Date-based serial #26
    The serial 2026093002 follows the YYYYMMDDnn convention (2026-09-30).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

10 records at the apex

Found

Read from
217.7.81.136:53
TypeValueTTL
SOAns1.idowa.de. dns.idowa.de. 2026093002 86400 7200 2419200 900900
NSns1.idowa.de.900
NSns2.idowa.de.900
A82.211.32.195900
MX10 abendzeitung-de.mail.protection.outlook.com.300
TXT"v=spf1 a mx ip4:85.13.149.205 ip4:185.88.213.178 ip6:2a00:f48:1008::213:178:10 ip4:51.102.243.244 ip4:18.196.115.44 include:spf.protection.outlook.com include:spf.crsend.com include:spf.fidion.de -all"300
TXT"facebook-domain-verification=0x9vo4amwi7suebv6diz741uqfj80f"300
TXT"extensis-domain-verification=c287877a-1dc5-486d-9e50-967a7946e362"300
TXT"google-site-verification=-YDv_zHKvom6oS5q9P7y78O-rXyMDAMADLqwk2VV6jk"300
TXT"MS=ms11527682"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 15m, MX 5m, NS 15m. The NS TTL at the parent is 1d and in the zone 15m; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35