Domain report: vodafone.nl

Registration

info

.nl country-code

Found

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

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

#3

Delegation

info

dnsit01.vodafone.nl, dnsit02.vodafone.nl

Found

Parent zone: nl
Delegation from: ns1.dns.nl (194.0.28.53)
NS at the parent: dnsit01.vodafone.nl, dnsit02.vodafone.nl
NS in the zone: dnsit01.vodafone.nl, dnsit02.vodafone.nl

Nameserver	Addresses	Network (AS)	Glue
dnsit01.vodafone.nl	62.140.138.237 2a00:18c9:f001:1002::e	AS33915 TNF-AS - Vodafone Libertel B.V., NL AS33915 TNF-AS - Vodafone Libertel B.V., NL	62.140.138.237 2a00:18c9:f001:1002::e
dnsit02.vodafone.nl	62.140.140.250 2a00:18c9:f001:1003::e	AS33915 TNF-AS - Vodafone Libertel B.V., NL AS33915 TNF-AS - Vodafone Libertel B.V., NL	62.140.140.250 2a00:18c9:f001:1003::e

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dnsit01.vodafone.nl, dnsit02.vodafone.nl.

#6
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
✓ Glue present and correct #8

Glue is published for the nameservers inside the zone: dnsit01.vodafone.nl, dnsit02.vodafone.nl.
✓ 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 2a00:18c9:f001::/48, while the other address family is spread over several networks.

#10
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS33915 (TNF-AS - Vodafone Libertel B.V., NL): 4 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 .nl

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

pass

4 of 4 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
dnsit01.vodafone.nl 62.140.138.237	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-
dnsit01.vodafone.nl 2a00:18c9:f001:1002::e	NOERROR, 15 ms, authoritative	no	yes / yes	refused	-
dnsit02.vodafone.nl 62.140.140.250	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-
dnsit02.vodafone.nl 2a00:18c9:f001:1003::e	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-

Checks

✓ All respond #14

All 4 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.
✓ No version disclosed #17

The nameservers don't reveal their software version.
✓ 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 2010837890 · primary dnsit01.vodafone.nl

Found

Primary (MNAME): dnsit01.vodafone.nl
Contact (RNAME): postmaster.vodafone.nl
Serial: 2010837890
Refresh / retry: 1800 s / 180 s
Expire: 1209600 s
Negative TTL: 900 s

Serial per nameserver

Nameserver	Serial
dnsit01.vodafone.nl (62.140.138.237)	2010837890
dnsit01.vodafone.nl (2a00:18c9:f001:1002::e)	2010837890
dnsit02.vodafone.nl (62.140.140.250)	2010837890
dnsit02.vodafone.nl (2a00:18c9:f001:1003::e)	2010837890

Checks

✓ Serial 2010837890 everywhere #22

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

SOA refresh 30m, retry 3m, expire 14d, negative TTL 15m.
✓ Primary is a public nameserver #24

The primary nameserver dnsit01.vodafone.nl is one of the listed nameservers.
✓ Contact postmaster@vodafone.nl #25

The SOA RNAME postmaster.vodafone.nl means postmaster@vodafone.nl.
✓ Timestamp serial #26

The serial 2010837890 is a Unix timestamp (2033-09-20 14:04 UTC).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC3
NSEC3: 10 iterations, 13-byte salt
Signatures valid until: 25 October 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
20995	RSASHA256 (8)	SHA256 72FE57FE21BB81F7…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
5751	ZSK (256)	RSASHA256 (8)
50115	ZSK (256)	RSASHA256 (8)
20995	KSK (257)	RSASHA256 (8)
51739	ZSK (256)	RSASHA256 (8)

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 20995 (SHA256).
✓ Modern algorithms #29

Key algorithms: RSASHA256 (8).
✓ Short-lived signatures (online signing) #30

Signatures are valid for 97h0m0s and created on demand; the current one was made at 2026-10-21 01:33 UTC and expires at 2026-10-25 02:14 UTC.
!

NSEC3 with extra iterations or salt

NSEC3 uses 10 iterations and a 13-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.

#31

Records

info

24 records at the apex

Found

Read from: 62.140.138.237:53

Type	Value	TTL
SOA	dnsit01.vodafone.nl. postmaster.vodafone.nl. 2010837890 1800 180 1209600 900	86400
NS	dnsit02.vodafone.nl.	86400
NS	dnsit01.vodafone.nl.	86400
A	45.223.144.71	300
A	45.223.138.71	300
AAAA	2a02:e980:161::47	86400
AAAA	2a02:e980:163::47	86400
MX	10 front.mail.ziggo.com.	86400
TXT	"pardot480801=f3c3443aeaa0d6619caef5e8b23ca399b2b5e67e2c9628fa0fcaf2ccee9905c2"	86400
TXT	"v=spf1 include:mail.ziggo.com include:rnmk.com -all"	86400
TXT	"MS=ms11643565"	86400
TXT	"facebook-domain-verification=b3j47i36ltnttz02eaycas9zx5msbd"	86400
TXT	"google-site-verification=E8Eqn5ELWhVBfo5OL_YADHxEhOR4kwrKoVb2lGR2ZjA"	86400
TXT	"google-site-verification=iP-9UHsvEinYn6xb2ij_f4sr5rnmQXLKOlio6cDT-Mo"	86400
TXT	"google-site-verification=NBawRO4CY7r5IPv4QofrDhK4_DdeH-HO8l5rkma8-r0"	86400
TXT	"pinterest-site-verification=fe0b2d91ef33ee81e06684b0e9618f5f"	86400
TXT	"fwcl75j5wry39zg7r8lqbvy1nnr41rp5"	86400
TXT	"globalsign-domain-verification=65c37a5caafa43bd86e81ad388c32c78"	86400
TXT	"_chhxk0ijmhtlk5h7o941caxmuu41hrj"	86400
TXT	"vodafone.nl"	86400
CAA	0 issue "globalsign.com"	86400
CAA	128 issuewild ";"	86400
CAA	128 iodef "mailto:ca@vodafone.com"	86400
CAA	128 issue "digicert.com"	86400

Checks

✓ TTLs within range #32

TTLs: A 5m, AAAA 1d, MX 1d, NS 1d. The NS TTL at the parent is 1h and in the zone 1d; 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
✓ CAA restricts issuance #35

Certificates may be issued by: globalsign.com, none (issuance forbidden), digicert.com.