mst.nl

Checked 22 October 2026, 14:40 UTC · via 8.8.8.8
!Passed with warnings
27 passed 1 warning 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/mst.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/mst.nl returned HTTP 429
    #3

Delegation

info

ns1-08.azure-dns.com, ns2-08.azure-dns.net, ns3-08.azure-dns.org, ns4-08.azure-dns.info

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1-08.azure-dns.com, ns2-08.azure-dns.net, ns3-08.azure-dns.org, ns4-08.azure-dns.info
NS in the zone
ns1-08.azure-dns.com, ns2-08.azure-dns.net, ns3-08.azure-dns.org, ns4-08.azure-dns.info
NameserverAddressesNetwork (AS)Glue
ns1-08.azure-dns.com13.107.236.8 2603:1061:0:700::8AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-
ns2-08.azure-dns.net150.171.21.8 2620:1ec:8ec:700::8AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-
ns3-08.azure-dns.org204.14.183.8 2a01:111:4000:700::8AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-
ns4-08.azure-dns.info208.84.5.8 2620:1ec:bda:700::8AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1-08.azure-dns.com, ns2-08.azure-dns.net, ns3-08.azure-dns.org, ns4-08.azure-dns.info.
  • ✓ 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 (AS8075 (MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, 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, .info, .net, .org.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1-08.azure-dns.com 13.107.236.8NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns1-08.azure-dns.com 2603:1061:0:700::8NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns2-08.azure-dns.net 150.171.21.8NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns2-08.azure-dns.net 2620:1ec:8ec:700::8NOERROR, 8 ms, authoritativenoyes / yesrefused-
ns3-08.azure-dns.org 204.14.183.8NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns3-08.azure-dns.org 2a01:111:4000:700::8NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns4-08.azure-dns.info 208.84.5.8NOERROR, 4 ms, authoritativenoyes / yesrefusedKnot DNS 3.1.2.1770717641.d6b376aff
ns4-08.azure-dns.info 2620:1ec:bda:700::8NOERROR, 4 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns4-08.azure-dns.info: "Knot DNS 3.1.2.1770717641.d6b376aff". 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 1 · primary ns1-08.azure-dns.com

Found

Primary (MNAME)
ns1-08.azure-dns.com
Contact (RNAME)
azuredns-hostmaster.microsoft.com
Serial
1
Refresh / retry
3600 s / 300 s
Expire
2419200 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns1-08.azure-dns.com (13.107.236.8)1
ns1-08.azure-dns.com (2603:1061:0:700::8)1
ns2-08.azure-dns.net (150.171.21.8)1
ns2-08.azure-dns.net (2620:1ec:8ec:700::8)1
ns3-08.azure-dns.org (204.14.183.8)1
ns3-08.azure-dns.org (2a01:111:4000:700::8)1
ns4-08.azure-dns.info (208.84.5.8)1
ns4-08.azure-dns.info (2620:1ec:bda:700::8)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 5m, expire 28d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1-08.azure-dns.com is one of the listed nameservers.
  • ✓ Contact azuredns-hostmaster@microsoft.com #25
    The SOA RNAME azuredns-hostmaster.microsoft.com means azuredns-hostmaster@microsoft.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
23 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
35153ECDSAP256SHA256 (13)SHA256 15C3719E5FCE8F98…yes

DNSKEY in the zone

Key tagRoleAlgorithm
35153KSK (257)ECDSAP256SHA256 (13)
13448ZSK (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 35153 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 50h0m0s and created on demand; the current one was made at 2026-10-21 13:40 UTC and expires at 2026-10-23 15:40 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

31 records at the apex

Found

Read from
13.107.236.8:53
TypeValueTTL
SOAns1-08.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 3003600
NSns1-08.azure-dns.com.172800
NSns2-08.azure-dns.net.172800
NSns3-08.azure-dns.org.172800
NSns4-08.azure-dns.info.172800
A4.245.98.9300
MX0 mst-nl.mail.protection.outlook.com.300
TXT"google-site-verification=qIhmUcvdYS86qxlsod9JSfMAN5DtdXFUST2H_MfnkLs"300
TXT"v=spf1 ip4:87.251.38.132 ip4:51.144.3.122 ip4:13.81.6.100 ip4:52.136.235.254 ip4:5.100.226.177/28 include:_spf.zivver.com include:spf.afas.online include:_spf.ezorg.nl include:_spf.mailplus.nl include:spf.protection.outlook.com include:mailservers.expoint" "s.nl include:spf.eu.exclaimer.net a:hybrid.mst.nl ip4:145.86.192.230 ip4:145.86.192.231 -all"300
TXT"apple-domain-verification=okgMIQGycNtJVN9x"300
TXT"miro-verification=7cb93ab72442817e83fa9042621d7982c1b53e01"300
TXT"google-site-verification=VOiXBNknaEGIEzL8NIfKWEFHnY5fUoi4-X9TVdhGU3g"300
TXT"WOxrHj9Qxjen3ILJCzLOSEnzv9G1mw7up8SYgVTLjQlhVbkfgPACDWKrWfr5PelW"300
TXT"cblagbsvm023efutseslelgle"300
TXT"sepesf0d6n8kb290p3it7rseu5"300
TXT"8cedjqtbu9n4g36a9pq5kdpbke"300
TXT"_8q9z2als83bb8mo8fk0z4gst7vofari"300
TXT"_2gmzc62q3leegvtajpuawnc6libbrq4"300
TXT"_9oz4gyj0oor6qxuiootjpxoeeanyqwn"300
TXT"_2jrq2qa20q8s2kj852jqjh7tdycl2ne"300
TXT"_kh54r893gb7ynqrmdntxr7wh7dn4mrj"300
TXT"_nrrg5e5is450mhbxss7i7h7t3zvd6sw"300
TXT"MDkZ3RL3MBj1TVEHuDLw2ptkoRKOlDhu8Qx3leNIfnceBTnhKFCjJG5cv6Onv4wS"300
TXT"_j60k11sf8lld13e9716vmzn0go0ayui"300
TXT"_xtdwhrrtxr1qab728aixaq6k2oq493r"300
TXT"_8wstyf8ozpy4c3ifpd4jnkl01tm4dod"300
TXT"_4y9gy04v0yt4ycylmw0kct0u1awpod4"300
TXT"_aj060n37yw64crvp2ci86hn7nrekljv"300
TXT"_czycw9m3z7j54n11gzr63s4ov01xoip"300
TXT"9230tuc994orb0jaf5kj1g0e38"300
TXT"6hnywpct9ly/NL4fkAkaEa0xiNpFSgwvRa9YkaGWQ0zvI9a+R5+SAsdPHrcp2/tDlmK6zHPdNHDdqXfoFqKFNA=="300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, 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