ing.com

Checked 22 October 2026, 09:20 UTC · via 8.8.8.8
!Passed with warnings
29 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2028-02-23

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
23 February 1999
Last changed
21 September 2026
Expires
23 February 2028
Status
client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
a1-175.akam.net, a12-67.akam.net, a13-67.akam.net, a24-65.akam.net, a5-65.akam.net, a8-65.akam.net
RDAP server
https://rdap.verisign.com/com/v1/

Checks

  • i
    .com is a generic TLD (gTLD)
    Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.
    #1
  • ✓ TLD delegated and signed #2
    .com is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2028-02-23 #3
    The registration is valid until 2028-02-23 (488 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

a1-175.akam.net, a12-67.akam.net, a13-67.akam.net, a24-65.akam.net, a5-65.akam.net, a8-65.akam.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
a1-175.akam.net, a12-67.akam.net, a13-67.akam.net, a24-65.akam.net, a5-65.akam.net, a8-65.akam.net
NS in the zone
a1-175.akam.net, a12-67.akam.net, a13-67.akam.net, a24-65.akam.net, a5-65.akam.net, a8-65.akam.net
NameserverAddressesNetwork (AS)Glue
a1-175.akam.net193.108.91.175 2600:1401:2::afAS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a12-67.akam.net184.26.160.67 2600:1480:f000::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a13-67.akam.net2.22.230.67 2600:1480:800::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a24-65.akam.net2.16.130.65 2600:1480:9800::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a5-65.akam.net95.100.168.65 2600:1480:b000::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a8-65.akam.net2.16.40.65 2600:1403:a::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-175.akam.net, a12-67.akam.net, a13-67.akam.net, a24-65.akam.net, a5-65.akam.net, a8-65.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.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 6 IPv4 /24s and 6 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 12 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 .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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a1-175.akam.net 193.108.91.175NOERROR, 3 ms, authoritativenoyes / yesrefused41824.8
a1-175.akam.net 2600:1401:2::afNOERROR, 9 ms, authoritativenoyes / yesrefused41824.8
a12-67.akam.net 184.26.160.67NOERROR, 8 ms, authoritativenoyes / yesrefused48878.33
a12-67.akam.net 2600:1480:f000::43NOERROR, 9 ms, authoritativenoyes / yesrefused48878.32
a13-67.akam.net 2.22.230.67NOERROR, 8 ms, authoritativenoyes / yesrefused41824.10
a13-67.akam.net 2600:1480:800::43NOERROR, 8 ms, authoritativenoyes / yesrefused41824.11
a24-65.akam.net 2.16.130.65NOERROR, 9 ms, authoritativenoyes / yesrefused48878.33
a24-65.akam.net 2600:1480:9800::41NOERROR, 9 ms, authoritativenoyes / yesrefused48878.30
a5-65.akam.net 95.100.168.65NOERROR, 3 ms, authoritativenoyes / yesrefused41824.5
a5-65.akam.net 2600:1480:b000::41NOERROR, 8 ms, authoritativenoyes / yesrefused41824.7
a8-65.akam.net 2.16.40.65NOERROR, 10 ms, authoritativenoyes / yesrefused48878.30
a8-65.akam.net 2600:1403:a::41NOERROR, 7 ms, authoritativenoyes / yesrefused48878.30

Checks

  • ✓ All respond #14
    All 12 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: a1-175.akam.net: "41824.8"; a12-67.akam.net: "48878.33"; a12-67.akam.net: "48878.32"; a13-67.akam.net: "41824.10"; a13-67.akam.net: "41824.11"; a24-65.akam.net: "48878.33"; a24-65.akam.net: "48878.30"; a5-65.akam.net: "41824.5"; a5-65.akam.net: "41824.7"; a8-65.akam.net: "48878.30". 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 2008043769 · primary a1-175.akam.net

Found

Primary (MNAME)
a1-175.akam.net
Contact (RNAME)
postmaster.mail.ing.nl
Serial
2008043769
Refresh / retry
14400 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
a1-175.akam.net (193.108.91.175)2008043769
a1-175.akam.net (2600:1401:2::af)2008043769
a12-67.akam.net (184.26.160.67)2008043769
a12-67.akam.net (2600:1480:f000::43)2008043769
a13-67.akam.net (2.22.230.67)2008043769
a13-67.akam.net (2600:1480:800::43)2008043769
a24-65.akam.net (2.16.130.65)2008043769
a24-65.akam.net (2600:1480:9800::41)2008043769
a5-65.akam.net (95.100.168.65)2008043769
a5-65.akam.net (2600:1480:b000::41)2008043769
a8-65.akam.net (2.16.40.65)2008043769
a8-65.akam.net (2600:1403:a::41)2008043769

Checks

  • ✓ Serial 2008043769 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-175.akam.net is one of the listed nameservers.
  • ✓ Contact postmaster@mail.ing.nl #25
    The SOA RNAME postmaster.mail.ing.nl means postmaster@mail.ing.nl.
  • ✓ Timestamp serial #26
    The serial 2008043769 is a Unix timestamp (2033-08-19 05:56 UTC).

DNSSEC

pass

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 0-byte salt
Signatures valid until
24 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
10223ECDSAP256SHA256 (13)SHA256 8F759BBBFD9867F3…yes

DNSKEY in the zone

Key tagRoleAlgorithm
10223KSK (257)ECDSAP256SHA256 (13)
48514ZSK (256)ECDSAP256SHA256 (13)
37847ZSK (256)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 10223 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 73h0m0s and created on demand; the current one was made at 2026-10-21 20:13 UTC and expires at 2026-10-24 21:13 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

warn

50 records at the apex

Found

Read from
193.108.91.175:53
TypeValueTTL
SOAa1-175.akam.net. postmaster.mail.ing.nl. 2008043769 14400 3600 604800 36003600
NSa13-67.akam.net.3600
NSa12-67.akam.net.3600
NSa1-175.akam.net.3600
NSa24-65.akam.net.3600
NSa5-65.akam.net.3600
NSa8-65.akam.net.3600
A2.16.204.2720
A2.16.204.1320
AAAA2a02:26f0:b700:5::210:cc1b20
AAAA2a02:26f0:b700:5::210:cc0d20
MX10 ing-com.mail.protection.outlook.com.300
TXT"jamf-site-verification=eo6GYVlXwGbX8-68lw7PMw"300
TXT"google-site-verification=48Q-2h8786W8Qi6PWLN0CACy7Jk8RfflUYiUAJIhTYQ"300
TXT"VISA=" "C24A831E533D7E6794BCC7794FE87094"300
TXT"google-site-verification=Go_lt6TFVjaMjT8o1J5AEsQPCDWFSa0caNSPCDlGTRo"300
TXT"swisssign-check=xYiSXGaZ11adqUmawSuqAOrJSvs"300
TXT"adobe-sign-verification=8d48ab1d618725e23a48887f8fc13b51"300
TXT"adobe-idp-site-verification=8b81f7b92ccac0b65bab7d47f9fcecaeda6f04ac870b79133d8ac54be7b53534"300
TXT"identrust_validate=00pp+H13n1jZ6hFOtSHM7uTIPb6dZfiqXAW4sIZmghuA"300
TXT"SFMC-ClTs8Q-n7-6JtFIqV68ECEdL5FZEZ0iUYFIdlaJZ"300
TXT"uber-domain-verification=f30ac183-3b8a-49ac-b7fb-f5a73225d0c0"300
TXT"hpe-greenlake-domain-verification=644f4e33795a513537594b496633726e4373665049694c4c7157304a30327147"300
TXT"identrust_validate=Ay3kt6yYQqsye/EKfTzAm7kECkKpEmSz32WVfpdL8kyc"300
TXT"apple-domain-verification=Vl5x3ZjESwc73YUc"300
TXT"swisssign-check=Qb5NkU4oaRLfmvPFl1_a8mpjDQg"300
TXT"docusign=70bf2c55-4ff3-4d27-8a30-078d9f4c494c"300
TXT"ibmid=4fc8b5b3-a0de-4ab3-8847-42372e6aa087"300
TXT"fjN9wsod4s6kXdghJ2/B/5V76XCQYybyAT0KOEU2n6+SPfjPzZH8hbmfpg271rQRLn+7fytZiWDD7LLQJ0U32Q=="300
TXT"adobe-sign-verification=691dcb4da341c14c26ff83385495b25d"300
TXT"v=spf1 include:_spf.ing.net include:mailplus.nl include:slvmcp.nl ip4:89.20.160.55 ip4:78.136.53.254 ip4:95.138.135.251 ip4:92.52.81.2 ip4:146.148.26.249" " ip4:83.231.160.128/26 ip4:212.187.169.64/26 ip4:192.254.112.185 ip4:83.217.248.35 ip4:170.207.39.152/31 ip4:170.207.37.144/31 -all"300
TXT"identrust_validate=U8+R2xcgjKqGe53sg2dzVd6Ecv15f/K7jTs+tKuKMemp"300
TXT"swisssign-check=qbkfZXvGPk3kBFxmCiItq7H__bY"300
TXT"infoblox-domain-mastery=c63a02c2309f084a480cb9804e4265716e9b6ac00bef2acbef676f14df7f221da1"300
TXT"_vjqjo3696o6vphxztpn0knhd89gwuq5"300
TXT"flexera-domain-verification-yewobfnrbgotkvsq"300
TXT"apple-domain-verification=w4LUmPEsSFoiZvok"300
TXT"google-site-verification=H-haxOxu7OZXIAzEnwo3z9bLbPs7H2XLtNubDC4h5No"300
CAA0 issue "identrust.com"3600
CAA0 issue "sectigo.com"3600
CAA0 issuewild "swisssign.com"3600
CAA0 issuemail "identrust.com"3600
CAA0 issuemail "ica.cz"3600
CAA0 issuemail "swisssign.com"3600
CAA0 iodef "mailto:ing.certificate.management@ing.com"3600
CAA0 issue "swisssign.com"3600
CAA0 issuewild "identrust.com"3600
CAA0 issuevmc "swisssign.com"3600
CAA0 issuevmc "identrust.com"3600
CAA0 issue "digicert.com"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s), AAAA (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1h; resolvers may use either.
    #32
  • ✓ 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
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: identrust.com, sectigo.com, swisssign.com, digicert.com.