apobank.de

Checked 21 October 2026, 21:30 UTC · via 8.8.8.8
!Passed with warnings
22 passed 2 warnings 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

pdns109.ultradns.biz, pdns109.ultradns.com, pdns109.ultradns.net, pdns109.ultradns.org

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
pdns109.ultradns.biz, pdns109.ultradns.com, pdns109.ultradns.net, pdns109.ultradns.org
NS in the zone
pdns109.ultradns.biz, pdns109.ultradns.com, pdns109.ultradns.net, pdns109.ultradns.org
NameserverAddressesNetwork (AS)Glue
pdns109.ultradns.biz156.154.66.109 2610:a1:1015::91AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
pdns109.ultradns.com156.154.64.109 2001:502:f3ff::91AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
pdns109.ultradns.net156.154.65.109 2610:a1:1014::91AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
pdns109.ultradns.org156.154.67.109 2001:502:4612::91AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to pdns109.ultradns.biz, pdns109.ultradns.com, pdns109.ultradns.net, pdns109.ultradns.org.
  • ✓ 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.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS12008 (VERCARA - Vercara, LLC, US): 8 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 4 TLDs #12
    Nameserver names use the TLDs .biz, .com, .net, .org.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
pdns109.ultradns.biz 156.154.66.109NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns109.ultradns.biz 2610:a1:1015::91NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns109.ultradns.com 156.154.64.109NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns109.ultradns.com 2001:502:f3ff::91NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns109.ultradns.net 156.154.65.109NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns109.ultradns.net 2610:a1:1014::91NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns109.ultradns.org 156.154.67.109NOERROR, 31 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns109.ultradns.org 2001:502:4612::91NOERROR, 32 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver

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: pdns109.ultradns.biz: "UltraDNS Nameserver"; pdns109.ultradns.com: "UltraDNS Nameserver"; pdns109.ultradns.net: "UltraDNS Nameserver"; pdns109.ultradns.org: "UltraDNS Nameserver".
    #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

warn

serial 2022113285 · primary pdns109.ultradns.com

Found

Primary (MNAME)
pdns109.ultradns.com
Contact (RNAME)
tech.brandshelter.com
Serial
2022113285
Refresh / retry
86400 s / 86400 s
Expire
86400 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
pdns109.ultradns.biz (156.154.66.109)2022113285
pdns109.ultradns.biz (2610:a1:1015::91)2022113285
pdns109.ultradns.com (156.154.64.109)2022113285
pdns109.ultradns.com (2001:502:f3ff::91)2022113285
pdns109.ultradns.net (156.154.65.109)2022113285
pdns109.ultradns.net (2610:a1:1014::91)2022113285
pdns109.ultradns.org (156.154.67.109)2022113285
pdns109.ultradns.org (2001:502:4612::91)2022113285

Checks

  • ✓ Serial 2022113285 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 1d should be shorter than refresh 1d; expire 1d is shorter than 7d; secondaries stop answering too soon when the primary is down; expire 1d must be longer than refresh + retry. Current values: refresh 1d, retry 1d, expire 1d, negative TTL 1d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver pdns109.ultradns.com is one of the listed nameservers.
  • ✓ Contact tech@brandshelter.com #25
    The SOA RNAME tech.brandshelter.com means tech@brandshelter.com.
  • ✓ Timestamp serial #26
    The serial 2022113285 is a Unix timestamp (2034-01-29 02:08 UTC).

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

28 records at the apex

Found

Read from
156.154.66.109:53
TypeValueTTL
SOApdns109.ultradns.com. tech.brandshelter.com. 2022113285 86400 86400 86400 8640086400
NSpdns109.ultradns.biz.300
NSpdns109.ultradns.com.300
NSpdns109.ultradns.net.300
NSpdns109.ultradns.org.300
A213.163.237.9300
MX10 apobank-de.mail.protection.outlook.com.300
TXT"MS=ms98762199"3600
TXT"apple-domain-verification=Ko3vQPfZYkgsw7b8"3600
TXT"MS=FF18EA330347D5FD6F2507DD9DE7CE6015E382E0"3600
TXT"brevo-code:9ee3917d946fa0749de10c4f866b2320"3600
TXT"QuoVadis=2f638fed-f674-4bbf-8fec-ee951a5c0f15"3600
TXT"QuoVadis=5035a608-08df-4b41-a83f-8608f5373862"3600
TXT"QuoVadis=84ceee24-7d15-4689-9e10-169ccb73a508"3600
TXT"QuoVadis=a7820806-3d46-4f6d-9a73-b8e8eabf780a"3600
TXT"docusign=1b34cbac-aaf4-424f-95f6-313819b097a9"3600
TXT"docusign=363855c1-5d01-4651-a2d5-47cb6d1d5372"3600
TXT"knowbe4-site-verification=719cca19be61c9bc91aa2972b6a13a0d"3600
TXT"facebook-domain-verification=86v2xgh3pdwycnif6xcs1g93tuc4qi"3600
TXT"goodnotes-verification=ac7ffb87-2580-4baa-bda0-46e2724e9e52"3600
TXT"_4c5e9a803be8b78fa9befd8df8b38609.sdgjtdhdhz.acm-validations.aws."3600
TXT"_91d9fa566e57a26e1d5d81eca4e9671e.sdgjtdhdhz.acm-validations.aws."3600
TXT"google-site-verification=A-vTNdveb4vZW6lIGt6gXCcU3ioxseqAPSSQhHIpN1Y"3600
TXT"google-site-verification=gSugMllEAKjiSO2-Q9aTJyWZpJ1TFkytVGw8U1-axWc"3600
TXT"globalsign-domain-verification=Am4eMWb1ao0SSdQliIARJhqCWCHgktfsfOrUEGdpWB"3600
TXT"_globalsign-domain-verification=6LI2AHn8GHfWU6oOrNwTO3JjMMFY6_5diJAOLgXvCb"3600
TXT"_globalsign-domain-verification=JNrBhQxubLL2Ilan1i4tQHQs2HGL-JzG6Q1UiLrsQV"3600
TXT"v=spf1 ip4:37.202.1.53 ip4:37.202.1.54 ip4:188.94.250.251 ip4:188.94.250.252 ip4:185.221.105.201 ip4:194.149.246.0/23 ip4:195.35.89.0/25 ip4:217.113.37.211 ip4:213.131.233.117 ip4:168.87.2.128/26 ip4:213.163.237.22 ip4:213.163.237.23 ip4:62.138.245.88 ip4" ":78.46.127.90 ip4:213.163.237.86 ip4:213.163.237.92 ip4:213.163.237.93 ip4:213.163.237.36 ip6:2a01:4f8:d0a:505e::2 ip4:78.47.139.137 ip6:2a01:4f8:d0a:41a1::2 ip4:88.99.138.38 ip4:192.103.120.0/22 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ip4:204.220.90.0/23 " "ip4:204.220.92.0/22 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48.0/20 ip4:204.220.168.0/21 ip4:204.220.176.0/20 ip4:141.193.32.0/29 ip4:159.135.140.80/29 ip4:159.135.132.128/25 ip4:161.38.204.0/22 ip4:87." "253.232.0/21 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:143.55.236.0/22 ip4:198.244.60.0/22 ip4:204.220.160.0/20 ip4:85.222.150.221 ip4:89.45.227.221 ip4:89.45.227.195 ip4:86.107.243.139 ip4:143.55.236.39 ip4:141.193.32.19 ip4:18.1" "95.58.148 ip4:212.211.203.248/32 ip4:212.211.203.251/32 ip4:212.211.203.252/32 ip4:162.55.240.73/32 ip4:145.253.80.4/32 ip4:82.150.225.79/32 a:mail.incognito.ms include:network.mynewsdesk.com include:agenturserver.de include:amazonses.com include:_spf.tiv" "ian.com include:_spf.psm.knowbe4.com include:_spf.qp-mail.eu include:spf.protection.outlook.com include:spf-de.emailsignatures365.com ~all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 5m. The NS TTL at the parent is 1d and in the zone 5m; 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