diplo.de

Checked 21 October 2026, 22:14 UTC · via 8.8.8.8
!Passed with warnings
22 passed 1 warning 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

info

a.babieldns.de, b.babieldns.de, c.babieldns.de, d.babieldns.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
a.babieldns.de, b.babieldns.de, c.babieldns.de, d.babieldns.de
NS in the zone
a.babieldns.de, b.babieldns.de, c.babieldns.de, d.babieldns.de
NameserverAddressesNetwork (AS)Glue
a.babieldns.de192.174.68.127 2001:67c:1bc::127AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT192.174.68.127 2001:67c:1bc::127
b.babieldns.de176.97.158.127 2001:67c:10b8::127AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT176.97.158.127 2001:67c:10b8::127
c.babieldns.de194.58.196.60 2a01:3f1:860::53AS8674 NETNOD-IX - Netnod AB, SE AS8674 NETNOD-IX - Netnod AB, SE194.58.196.60 2a01:3f1:860::53
d.babieldns.de194.58.198.138 2a01:3f1:3038::53AS56908 NETNOD-NDS - Netnod AB, SE AS56908 NETNOD-NDS - Netnod AB, SE194.58.198.138 2a01:3f1:3038::53

Checks

  • ✓ 4 nameservers #6
    Delegated to a.babieldns.de, b.babieldns.de, c.babieldns.de, d.babieldns.de.
  • ✓ 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 4 IPv4 /24s and 4 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 4 addresses; AS56908 (NETNOD-NDS - Netnod AB, SE): 2 addresses; AS8674 (NETNOD-IX - Netnod AB, SE): 2 addresses.
  • 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a.babieldns.de 192.174.68.127NOERROR, 8 ms, authoritativenoyes / yesrefusedRcodeZero DNS
a.babieldns.de 2001:67c:1bc::127NOERROR, 8 ms, authoritativenoyes / yesrefusedRcodeZero DNS
b.babieldns.de 176.97.158.127NOERROR, 11 ms, authoritativenoyes / yesrefusedreg-wie1
b.babieldns.de 2001:67c:10b8::127NOERROR, 12 ms, authoritativenoyes / yesrefusedreg-wie1
c.babieldns.de 194.58.196.60NOERROR, 8 ms, authoritativenoyes / yesrefused-
c.babieldns.de 2a01:3f1:860::53NOERROR, 12 ms, authoritativenoyes / yesrefused-
d.babieldns.de 194.58.198.138NOERROR, 9 ms, authoritativenoyes / yesrefused-
d.babieldns.de 2a01:3f1:3038::53NOERROR, 10 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 8 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.babieldns.de: "RcodeZero DNS"; b.babieldns.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 2026021721 · primary a.babieldns.de

Found

Primary (MNAME)
a.babieldns.de
Contact (RNAME)
admin.babiel.com
Serial
2026021721
Refresh / retry
3600 s / 300 s
Expire
3600000 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
a.babieldns.de (192.174.68.127)2026021721
a.babieldns.de (2001:67c:1bc::127)2026021721
b.babieldns.de (176.97.158.127)2026021721
b.babieldns.de (2001:67c:10b8::127)2026021721
c.babieldns.de (194.58.196.60)2026021721
c.babieldns.de (2a01:3f1:860::53)2026021721
d.babieldns.de (194.58.198.138)2026021721
d.babieldns.de (2a01:3f1:3038::53)2026021721

Checks

  • ✓ Serial 2026021721 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 5m, expire 1000h, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a.babieldns.de is one of the listed nameservers.
  • ✓ Contact admin@babiel.com #25
    The SOA RNAME admin.babiel.com means admin@babiel.com.
  • ✓ Date-based serial #26
    The serial 2026021721 follows the YYYYMMDDnn convention (2026-02-17).

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

22 records at the apex

Found

Read from
192.174.68.127:53
TypeValueTTL
SOAa.babieldns.de. admin.babiel.com. 2026021721 3600 300 3600000 90014400
NSa.babieldns.de.14400
NSb.babieldns.de.14400
NSc.babieldns.de.14400
NSd.babieldns.de.14400
A46.243.125.5314400
AAAA2a03:d400:125:0:46:243:125:53300
MX10 mx1.bund.de.14400
MX10 mx2.bund.de.14400
TXT"VdtwxWeZRUNOrT9NcYrEb646QVi/awhwGMR7GzsyQmk="14400
TXT"v=spf1 include:_spf1.bund.de ip4:46.243.125.204 -all"14400
TXT"google-site-verification=QRYRKDSkP9ZjahXqEThun7LAuBoXSIkAq1UtpdXLEYw"14400
TXT"_globalsign-domain-verification=2gYzFPrawdwm7P76OsCNzDoa4bFdzDaVgv2rwn-krO"14400
TXT"_globalsign-domain-verification=Dq-Ul1B2BtpkVbJVOV8WDvTnyH_yiGM4pptq6STNSG"14400
TXT"_globalsign-domain-verification=Gto7sYB4Qa5L-qZ9L4ovxd6TnMl-rvCm9ktNx0TAP3"14400
TXT"_globalsign-domain-verification=VCQIWRAdyKWumPvBXldA60Hbb3rEv7Rs_-of6GPTwh"14400
TXT"_globalsign-domain-verification=WDGD7b5rhSqQlet6Lyz3FvcCLIFnismww5V9CSxYyN"14400
TXT"_globalsign-domain-verification=czxJPWY3K0e8-eGhWOJsEnjhg6Q-BHCvAXsGYKsfcj"14400
TXT"_globalsign-domain-verification=nvd_DBhxqbu-aNjdv1LeXPritIfwVn_Ur8bH4HYOUp"14400
TXT"_globalsign-domain-verification=sKE5kxM70vaFO1UnjQTIdEK9zxoXRHK1GsX3prE3_0"14400
TXT"_globalsign-domain-verification=vlay71rsrZYqxhRWtLobVJSUX38RAlyZrWjVKjshiF"14400
TXT"cisco-ci-domain-verification=5774bdbc8313a4e2832984ee4c42fcb3029be7d598a44ae0350824ce5fdee625"14400

Checks

  • ✓ TTLs within range #32
    TTLs: A 4h, AAAA 5m, MX 4h, NS 4h. The NS TTL at the parent is 1d and in the zone 4h; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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