Domain report: ing.nl

Registration

info

.nl country-code

Found

TLD: .nl (country-code)
ICANN policies apply: no

Lookup error: https://rdap.sidn.nl/domain/ing.nl returned HTTP 429

Checks

i

.nl 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

.nl is delegated in the root zone and DNSSEC-signed.
i

Could not be checked

The RDAP lookup failed, so this could not be checked: https://rdap.sidn.nl/domain/ing.nl returned HTTP 429

#3

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: nl
Delegation from: ns1.dns.nl (194.0.28.53)
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

Nameserver	Addresses	Network (AS)	Glue
a1-175.akam.net	193.108.91.175 2600:1401:2::af	AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL	-
a12-67.akam.net	184.26.160.67 2600:1480:f000::43	AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL	-
a13-67.akam.net	2.22.230.67 2600:1480:800::43	AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL	-
a24-65.akam.net	2.16.130.65 2600:1480:9800::41	AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL	-
a5-65.akam.net	95.100.168.65 2600:1480:b000::41	AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL	-
a8-65.akam.net	2.16.40.65 2600:1403:a::41	AS21342 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.
✓ 2 autonomous systems #11

The nameservers are spread over: AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL): 1 address; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 11 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
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
a1-175.akam.net 193.108.91.175	NOERROR, 3 ms, authoritative	no	yes / yes	refused	41824.9
a1-175.akam.net 2600:1401:2::af	NOERROR, 4 ms, authoritative	no	yes / yes	refused	41824.9
a12-67.akam.net 184.26.160.67	NOERROR, 3 ms, authoritative	no	yes / yes	refused	48878.29
a12-67.akam.net 2600:1480:f000::43	NOERROR, 4 ms, authoritative	no	yes / yes	refused	48878.31
a13-67.akam.net 2.22.230.67	NOERROR, 3 ms, authoritative	no	yes / yes	refused	41824.6
a13-67.akam.net 2600:1480:800::43	NOERROR, 4 ms, authoritative	no	yes / yes	refused	41824.7
a24-65.akam.net 2.16.130.65	NOERROR, 3 ms, authoritative	no	yes / yes	refused	48878.33
a24-65.akam.net 2600:1480:9800::41	NOERROR, 4 ms, authoritative	no	yes / yes	refused	48878.32
a5-65.akam.net 95.100.168.65	NOERROR, 3 ms, authoritative	no	yes / yes	refused	41824.10
a5-65.akam.net 2600:1480:b000::41	NOERROR, 4 ms, authoritative	no	yes / yes	refused	41824.4
a8-65.akam.net 2.16.40.65	NOERROR, 3 ms, authoritative	no	yes / yes	refused	48878.29
a8-65.akam.net 2600:1403:a::41	NOERROR, 4 ms, authoritative	no	yes / yes	refused	48878.32

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: "41824.9"; a12-67.akam.net: "48878.29"; a12-67.akam.net: "48878.31"; a13-67.akam.net: "41824.6"; a13-67.akam.net: "41824.7"; a24-65.akam.net: "48878.33"; a24-65.akam.net: "48878.32"; a5-65.akam.net: "41824.10"; a5-65.akam.net: "41824.4"; a8-65.akam.net: "48878.29"; a8-65.akam.net: "48878.32". 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 2008046940 · primary a1-175.akam.net

Found

Primary (MNAME): a1-175.akam.net
Contact (RNAME): postmaster.mail.ing.nl
Serial: 2008046940
Refresh / retry: 14400 s / 3600 s
Expire: 604800 s
Negative TTL: 300 s

Serial per nameserver

Nameserver	Serial
a1-175.akam.net (193.108.91.175)	2008046940
a1-175.akam.net (2600:1401:2::af)	2008046940
a12-67.akam.net (184.26.160.67)	2008046940
a12-67.akam.net (2600:1480:f000::43)	2008046940
a13-67.akam.net (2.22.230.67)	2008046940
a13-67.akam.net (2600:1480:800::43)	2008046940
a24-65.akam.net (2.16.130.65)	2008046940
a24-65.akam.net (2600:1480:9800::41)	2008046940
a5-65.akam.net (95.100.168.65)	2008046940
a5-65.akam.net (2600:1480:b000::41)	2008046940
a8-65.akam.net (2.16.40.65)	2008046940
a8-65.akam.net (2600:1403:a::41)	2008046940

Checks

✓ Serial 2008046940 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 4h, retry 1h, expire 7d, negative TTL 5m.
✓ 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 2008046940 is a Unix timestamp (2033-08-19 06:49 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 tag	Algorithm	Digest	Matches a key
65123	ECDSAP256SHA256 (13)	SHA256 6285F3D60CD29FE8…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
23107	ZSK (256)	ECDSAP256SHA256 (13)
39415	ZSK (256)	ECDSAP256SHA256 (13)
65123	KSK (257)	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 65123 (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 02:57 UTC and expires at 2026-10-24 03:57 UTC.
✓ NSEC3 as recommended #31

The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

warn

29 records at the apex

Found

Read from: 193.108.91.175:53

Type	Value	TTL
SOA	a1-175.akam.net. postmaster.mail.ing.nl. 2008046940 14400 3600 604800 300	3600
NS	a1-175.akam.net.	3600
NS	a12-67.akam.net.	3600
NS	a24-65.akam.net.	3600
NS	a8-65.akam.net.	3600
NS	a5-65.akam.net.	3600
NS	a13-67.akam.net.	3600
A	95.100.72.32	20
MX	10 ing-nl.mail.protection.outlook.com.	3600
TXT	"facebook-domain-verification=ki5mf778r02jgsu3serx11n5k4wutr"	300
TXT	"swisssign-check=mTa0az0UjgC31aajZL9qT9FT8iY"	300
TXT	"identrust_validate=Kh3zr7699hOROLNoCDXw8lAa9Y3uS44nAdxScjUYd3Gk"	300
TXT	"v=spf1 ip4:80.248.34.0/24 ip4:195.248.87.0/24 ip4:85.112.22.247 ip4:74.63.141.251 ip4:83.149.86.160/27 ip4:83.149.121.128/26 ip4:80.79.192.34/31 ip4:78.31.119.9 ip4:91.220.136.168 ip4:46.31.52.0/23 ip4:46.19.168.0/23 " "ip4:192.254.112.185 ip4:91.209.197.6 ip4:91.209.197.7 ip4:62.112.237.21 ip4:62.112.237.23 ip6:2a00:1558:2801:4::2:1 ip6:2a00:1558:2801:4::3:1 include:_spf.ing.net include:_spf.ing.nl -all"	300
TXT	"google-site-verification=u4xcx2tDkwQ_x5at8cpwcHYHKYyMnMZL0ymGYjJy7ng"	300
TXT	"MS=ms65197369"	300
TXT	"google-site-verification=lBaANneQhMPLsQnQ2vyraMBmjQ6rb1P7sGhIJ4uCEsE"	300
TXT	"swisssign-check=MuPWKliZinfjvRfCyteelDjR1HY"	300
TXT	"identrust_validate=6M+OwBttM+72prXyNyDkjz4F9XjrdfdPoVn5WadNN2LZ"	300
TXT	"ui2HMDuwDgJk7k/S06VIqZp3+OqB3Ccy+DNbPW93gvjVZ1qfJGeyaXIZrYOzUUEqqnjLbL/H42Fb/abebnTM1A=="	300
TXT	"google-site-verification=RHuwn4l4SXvHlUpaN7iooaq1GXhhbfPGf5-Oi-QYaLY"	300
CAA	0 issuevmc "swisssign.com"	3600
CAA	0 issuewild "identrust.com"	3600
CAA	0 issue "identrust.com"	3600
CAA	0 iodef "mailto:ing.certificate.management@ing.com"	3600
CAA	0 issue "swisssign.com"	3600
CAA	0 issuemail "identrust.com"	3600
CAA	0 issuemail "swisssign.com"	3600
CAA	0 issuewild "swisssign.com"	3600
CAA	0 issuevmc "identrust.com"	3600

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.
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, swisssign.com.