vitens.nl

Checked 22 October 2026, 17:10 UTC · via 8.8.8.8
iAll checks passed
28 passed 0 warnings 0 failed 5 info

Registration

info

.nl country-code

Found

TLD
.nl (country-code)
ICANN policies apply
no
Lookup error: https://rdap.sidn.nl/domain/vitens.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/vitens.nl returned HTTP 429
    #3

Delegation

info

ns-1162.awsdns-17.org, ns-1597.awsdns-07.co.uk, ns-896.awsdns-48.net, ns-94.awsdns-11.com

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns-1162.awsdns-17.org, ns-1597.awsdns-07.co.uk, ns-896.awsdns-48.net, ns-94.awsdns-11.com
NS in the zone
ns-1162.awsdns-17.org, ns-1597.awsdns-07.co.uk, ns-896.awsdns-48.net, ns-94.awsdns-11.com
NameserverAddressesNetwork (AS)Glue
ns-1162.awsdns-17.org205.251.196.138 2600:9000:5304:8a00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1597.awsdns-07.co.uk205.251.198.61 2600:9000:5306:3d00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-896.awsdns-48.net205.251.195.128 2600:9000:5303:8000::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-94.awsdns-11.com205.251.192.94 2600:9000:5300:5e00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1162.awsdns-17.org, ns-1597.awsdns-07.co.uk, ns-896.awsdns-48.net, ns-94.awsdns-11.com.
  • ✓ 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 (AS16509 (AMAZON-02 - Amazon.com, Inc., 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 .com, .net, .org, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1162.awsdns-17.org 205.251.196.138NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1162.awsdns-17.org 2600:9000:5304:8a00::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1597.awsdns-07.co.uk 205.251.198.61NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1597.awsdns-07.co.uk 2600:9000:5306:3d00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-896.awsdns-48.net 205.251.195.128NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-896.awsdns-48.net 2600:9000:5303:8000::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-94.awsdns-11.com 205.251.192.94NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-94.awsdns-11.com 2600:9000:5300:5e00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-

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.
  • ✓ 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 1 · primary ns-94.awsdns-11.com

Found

Primary (MNAME)
ns-94.awsdns-11.com
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-1162.awsdns-17.org (205.251.196.138)1
ns-1162.awsdns-17.org (2600:9000:5304:8a00::1)1
ns-1597.awsdns-07.co.uk (205.251.198.61)1
ns-1597.awsdns-07.co.uk (2600:9000:5306:3d00::1)1
ns-896.awsdns-48.net (205.251.195.128)1
ns-896.awsdns-48.net (2600:9000:5303:8000::1)1
ns-94.awsdns-11.com (205.251.192.94)1
ns-94.awsdns-11.com (2600:9000:5300:5e00::1)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-94.awsdns-11.com is one of the listed nameservers.
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Counter serial #26
    The serial 1 is a plain counter.

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
22 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
33103ECDSAP256SHA256 (13)SHA256 7DE082E7620F8328…yes

DNSKEY in the zone

Key tagRoleAlgorithm
35949ZSK (256)ECDSAP256SHA256 (13)
381ZSK (256)ECDSAP256SHA256 (13)
33103KSK (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 33103 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 2h0m0s and created on demand; the current one was made at 2026-10-22 16:10 UTC and expires at 2026-10-22 18:25 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

info

16 records at the apex

Found

Read from
205.251.196.138:53
TypeValueTTL
SOAns-94.awsdns-11.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1162.awsdns-17.org.172800
NSns-1597.awsdns-07.co.uk.172800
NSns-896.awsdns-48.net.172800
NSns-94.awsdns-11.com.172800
A31.24.48.1103660
MX20 vitens-nl.mail.protection.outlook.com.3600
TXT"MS=ms79781802"3600
TXT"QuoVadis=aff6459d-084f-4742-8703-b57aeac8939a"3600
TXT"atlassian-domain-verification=rPG337yeU0TXzJ8xznadbAyb2Ambryo8X1N7h657B1HQ0HejZaTfa562iOX6jx9C"3600
TXT"citrix.mobile.ads.otp=5hm92xfw6lxu7pqans2n3"3600
TXT"infoblox-domain-mastery=70654e12276a58c8f714e535d68c941508ab57f8e579fda110ed84b18b820d16cc"3600
TXT"sitecore104=_2kj0s6stnubla66hgso2gwclprohleu"3600
TXT"successfactors-site-verification=MmU2MTkyYzAwYmMzYjY1MzIzYzlhNDNmOTZjYWQ1MjZhYzRhYzcyNjc4Y2EzY2M4OWE4NzEwNzI0ZTE5YWRkMw=="3600
TXT"successfactors-site-verification=N2MyMzE1MjhjZGU5OGRhYmFjNGE1YTczMDlhYTVhZjRmNGEzZDkyZGU2OGRlNzE4YTc0Mzc2YmQ1MGVlMjcyZA=="3600
TXT"v=spf1 ip4:31.24.48.200 include:spf.protection.outlook.com include:eu.mailgun.org include:sapsf.eu include:spf.flowmailer.net -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 61m, MX 1h, NS 2d. The NS TTL at the parent is 1h and in the zone 2d; 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