ing.de

Checked 21 October 2026, 23:00 UTC · via 8.8.8.8
!Passed with warnings
20 passed 4 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

asia3.akam.net, aus1.akam.net, ns1-228.akam.net, ns1-252.akam.net, usc2.akam.net, use1.akam.net, use2.akam.net, usw2.akam.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
asia3.akam.net, aus1.akam.net, ns1-228.akam.net, ns1-252.akam.net, usc2.akam.net, use1.akam.net, use2.akam.net, usw2.akam.net
NS in the zone
asia3.akam.net, aus1.akam.net, ns1-228.akam.net, ns1-252.akam.net, usc2.akam.net, use1.akam.net, use2.akam.net, usw2.akam.net
NameserverAddressesNetwork (AS)Glue
asia3.akam.net23.211.61.64AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
aus1.akam.net184.85.248.65AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
ns1-228.akam.net193.108.91.228 2600:1401:2::e4AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
ns1-252.akam.net193.108.91.252 2600:1401:2::fcAS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
usc2.akam.net184.26.160.64AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
use1.akam.net72.246.46.64AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
use2.akam.net96.7.49.64AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
usw2.akam.net184.26.161.64AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 8 nameservers #6
    Delegated to asia3.akam.net, aus1.akam.net, ns1-228.akam.net, ns1-252.akam.net, usc2.akam.net, use1.akam.net, use2.akam.net, usw2.akam.net.
  • ✓ 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.
  • i
    One address family in one network
    all IPv6 addresses are in 2600:1401:2::/48, while the other address family is spread over several networks.
    #10
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL): 2 addresses; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 8 addresses.
  • i
    All nameserver names under .net
    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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: asia3.akam.net, aus1.akam.net, usc2.akam.net, use1.akam.net, use2.akam.net, usw2.akam.net.
    #13

Nameservers

warn

10 of 10 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
asia3.akam.net 23.211.61.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.33
aus1.akam.net 184.85.248.65NOERROR, 3 ms, authoritativenoyes / yesrefused41824.10
ns1-228.akam.net 193.108.91.228NOERROR, 3 ms, authoritativenoyes / yesrefused41824.11
ns1-228.akam.net 2600:1401:2::e4NOERROR, 4 ms, authoritativenoyes / yesrefused41824.10
ns1-252.akam.net 193.108.91.252NOERROR, 4 ms, authoritativenoyes / yesrefused41824.4
ns1-252.akam.net 2600:1401:2::fcNOERROR, 3 ms, authoritativenoyes / yesrefused41824.7
usc2.akam.net 184.26.160.64NOERROR, 4 ms, authoritativenoyes / yesrefused48878.29
use1.akam.net 72.246.46.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.30
use2.akam.net 96.7.49.64NOERROR, 3 ms, authoritativenoyes / yesrefused41824.10
usw2.akam.net 184.26.161.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.33

Checks

  • ✓ All respond #14
    All 10 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: asia3.akam.net: "48878.33"; aus1.akam.net: "41824.10"; ns1-228.akam.net: "41824.11"; ns1-228.akam.net: "41824.10"; ns1-252.akam.net: "41824.4"; ns1-252.akam.net: "41824.7"; usc2.akam.net: "48878.29"; use1.akam.net: "48878.30"; use2.akam.net: "41824.10"; usw2.akam.net: "48878.33". 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

warn

serial 2026100101 · primary ns1-228.akam.net

Found

Primary (MNAME)
ns1-228.akam.net
Contact (RNAME)
dnsmaster.ing.de
Serial
2026100101
Refresh / retry
1200 s / 2000 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
asia3.akam.net (23.211.61.64)2026100101
aus1.akam.net (184.85.248.65)2026100101
ns1-228.akam.net (193.108.91.228)2026100101
ns1-228.akam.net (2600:1401:2::e4)2026100101
ns1-252.akam.net (193.108.91.252)2026100101
ns1-252.akam.net (2600:1401:2::fc)2026100101
usc2.akam.net (184.26.160.64)2026100101
use1.akam.net (72.246.46.64)2026100101
use2.akam.net (96.7.49.64)2026100101
usw2.akam.net (184.26.161.64)2026100101

Checks

  • ✓ Serial 2026100101 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 33m20s should be shorter than refresh 20m. Current values: refresh 20m, retry 33m20s, expire 7d, negative TTL 1h.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1-228.akam.net is one of the listed nameservers.
  • ✓ Contact dnsmaster@ing.de #25
    The SOA RNAME dnsmaster.ing.de means dnsmaster@ing.de.
  • ✓ Date-based serial #26
    The serial 2026100101 follows the YYYYMMDDnn convention (2026-10-01).

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

warn

33 records at the apex

Found

Read from
23.211.61.64:53
TypeValueTTL
SOAns1-228.akam.net. dnsmaster.ing.de. 2026100101 1200 2000 604800 360086400
NSns1-228.akam.net.86400
NSaus1.akam.net.86400
NSusc2.akam.net.86400
NSusw2.akam.net.86400
NSuse2.akam.net.86400
NSuse1.akam.net.86400
NSns1-252.akam.net.86400
NSasia3.akam.net.86400
A104.82.104.24820
MX10 ing-de.mail.protection.outlook.com.300
TXT"google-site-verification=D80c-ROcMp7Ql_s8i1c_8DA8MfM_Hbxjb0E7mXM-sJQ"86400
TXT"swisssign-check=XcwOBvriDZV-nZtCZCk87XZSbwc"86400
TXT"identrust_validate=XU3kVmIVdCScFmGaVmfEMJHMKSSiO+iN55reDNaIZUgJ"86400
TXT"_globalsign-domain-verification=mS/XWyo5VPosf+WTOW1JHzTvA9lt1lKjT9XvkXuFus8="86400
TXT"_telesec-domain-validation=345184_2025-02-03_j5A3nVjwL5ngthkDkLZgMc58YTYEesuLAtBA7mwTS0tIrJy0E0"86400
TXT"MS=ms96937777"86400
TXT"ZB0GjMIB+AwMyhVsM4VXyBQll5MjmLgtTJSEGyuLvtQ="86400
TXT"_telesec-domain-validation=345183_2025-02-03_Ug6EKn39SAlEEy6aMSsubgiCox2lbipqNs9cVVguZTJMPHama0"86400
TXT"yUMSXUF15NAZZxbclumpMdQYOj6p9+QZWitHlgmu4o/0u5/7s4NajxYwtPCnpiJiOmkpmAE/OFRk7h4ylY1Pwg=="86400
TXT"facebook-domain-verification=edysw8qpn8x4jx5mi6a0z7x7qmdy4z"86400
TXT"_telesec-domain-validation=2023-03-06_0W404V8XzLkJ6kGmi0KMoTAZ4bYaqW9L1dpSmKDNq2i4Q755kb"86400
TXT"apple-domain-verification=F58FCz4ID5CLYpgu"86400
TXT"v=spf1 include:_spf.ing.net ip4:194.127.138.0/24 ip4:212.172.242.140 ip4:216.74.162.13 ip4:216.74.162.14 include:_spf.salesforce.com include:eskerondemand.com -all"86400
TXT"adobe-sign-verification=4417d28a3d7ffa22be2db635488176"86400
TXT"swisssign-check=6xP3ohDbdnm3a6yb3QdMmC07Ysw"86400
CAA0 issue "entrust.net"86400
CAA0 issue "identrust.com"86400
CAA0 issue "swisssign.com"86400
CAA0 issuewild "entrust.net"86400
CAA0 issuewild "identrust.com"86400
CAA0 iodef "mailto:ing.certificate.management@ing.com"86400
CAA0 issuewild "swisssign.com"86400

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s). Low TTLs are useful just before a planned change.
    #32
  • ✓ 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: entrust.net, identrust.com, swisssign.com.