dat.de

Checked 21 October 2026, 22:12 UTC · via 8.8.8.8
!Passed with warnings
23 passed 1 warning 0 failed 5 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

info

a.managed-ns.com, b.managed-ns.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
a.managed-ns.com, b.managed-ns.de
NS in the zone
a.managed-ns.com, b.managed-ns.de
NameserverAddressesNetwork (AS)Glue
a.managed-ns.com192.174.68.102 2001:67c:1bc::102AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
b.managed-ns.de176.97.158.102 2001:67c:10b8::102AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT176.97.158.102 2001:67c:10b8::102

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: a.managed-ns.com, b.managed-ns.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 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .de.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a.managed-ns.com 192.174.68.102NOERROR, 5 ms, authoritativenoyes / yesrefusedRcodeZero DNS
a.managed-ns.com 2001:67c:1bc::102NOERROR, 5 ms, authoritativenoyes / yesrefusedRcodeZero DNS
b.managed-ns.de 176.97.158.102NOERROR, 13 ms, authoritativenoyes / yesrefusedreg-wie1
b.managed-ns.de 2001:67c:10b8::102NOERROR, 12 ms, authoritativenoyes / yesrefusedreg-wie1

Checks

  • ✓ All respond #14
    All 4 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: a.managed-ns.com: "RcodeZero DNS"; b.managed-ns.de: "reg-wie1".
    #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 2026102000 · primary a.managed-ns.com

Found

Primary (MNAME)
a.managed-ns.com
Contact (RNAME)
domainadmin.managed-ip.com
Serial
2026102000
Refresh / retry
43200 s / 7200 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
a.managed-ns.com (192.174.68.102)2026102000
a.managed-ns.com (2001:67c:1bc::102)2026102000
b.managed-ns.de (176.97.158.102)2026102000
b.managed-ns.de (2001:67c:10b8::102)2026102000

Checks

  • ✓ Serial 2026102000 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 2h, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a.managed-ns.com is one of the listed nameservers.
  • ✓ Contact domainadmin@managed-ip.com #25
    The SOA RNAME domainadmin.managed-ip.com means domainadmin@managed-ip.com.
  • ✓ Date-based serial #26
    The serial 2026102000 follows the YYYYMMDDnn convention (2026-10-20).

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

pass

24 records at the apex

Found

Read from
192.174.68.102:53
TypeValueTTL
SOAa.managed-ns.com. domainadmin.managed-ip.com. 2026102000 43200 7200 1209600 8640086400
NSa.managed-ns.com.86400
NSb.managed-ns.de.86400
A23.208.149.95300
MX10 cluster8.eu.messagelabs.com.300
MX20 cluster8a.eu.messagelabs.com.300
TXT"24742930"60
TXT"apple-domain-verification=hp2oBiuhXaNPbQDA"60
TXT"MS=1A968645DBE510B4FE0C26C0EA503CE50D4BB38B"60
TXT"swisssign-check=o2OwFls_rFmPfmoltXaQBBAvL88"60
TXT"Xn7ZnMePOzs+8be0td3dsnBRBTyHh+hDKN32JeGjiOU="60
TXT"ms-domain-verification=4eecec95-c8e1-4fb0-b7d2-0d499213bf0b"60
TXT"google-site-verification=1gmwFMZsGpOmBfsXZp-_KhY-I6i-GRakrwsCoEL3Vgw"60
TXT"globalsign-domain-verification=nSj6xW1MQO79MRfqpMC0YPyt6iYnLAOhQDZ3Ct8JFa"60
TXT"atlassian-domain-verification=L/lWGlLCoUhbLlwkgQqGT4Yz8vZSAymqUJjQKOEBeoDo9zzS7Fo3TtTfGk2bkmia"60
TXT"00D9O00000QmxMz=1TB9O0000000Sif;00D7Q000001PSF2=1TBdk00000003yn;00DbY00000Af0xZ=1TBbY0000000nDe"60
TXT"trend-micro-v1-domain-verification.084b37d103152e8ecf1f1707f0ff1d59=3ed5fff1-e5de-4be8-97cf-5769d8c13530"60
TXT"v=spf1 mx a:filter001.docuguide.com ip4:149.72.132.168 ip4:167.89.109.75 ip4:198.21.3.35 ip4:2.207.132.32/27 ip4:195.245.230.0/24 ip4:213.95.132.52/32 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.8.0/21 ip4:216.82.240.0/20 ip4:67.219.240.0/20 ip4:1" "17.120.16.0/21 ip4:103.9.96.0/22 ip4:85.158.136.0/21 ip4:193.109.254.0/23 ip4:194.106.220.0/23 ip4:195.245.230.0/23 ip4:95.131.104.0/21 ip4:195.30.116.161/32 ip4:46.226.48.0/21 ip4:178.77.121.128/26 ip4:158.69.163.48/29 ip4:46.4.238.128/29 ip4:20.67.33.23" "2/32 ip6:2607:5300:203:fe1::/112 include:spf.messagelabs.com include:_spf.salesforce.com include:spf.docuguide.com include:aw.spf.dat.de include:spf.protection.outlook.com -all"60
CAA0 issue "amazontrust.com"43200
CAA0 issue "digicert.com"43200
CAA0 issue "globalsign.com"43200
CAA0 issue "letsencrypt.org"43200
CAA0 issuewild "digicert.com"43200
CAA0 issuewild "globalsign.com"43200

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 1d.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: amazontrust.com, digicert.com, globalsign.com, letsencrypt.org.