nh1816.nl

Checked 22 October 2026, 14:42 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/nh1816.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/nh1816.nl returned HTTP 429
    #3

Delegation

info

dns1.nh1816.net, dns3.nh1816.net, dns4.nh1816.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
dns1.nh1816.net, dns3.nh1816.net, dns4.nh1816.net
NS in the zone
dns1.nh1816.net, dns3.nh1816.net, dns4.nh1816.net
NameserverAddressesNetwork (AS)Glue
dns1.nh1816.net31.14.99.71 2a01:7c8:bb02:123:5054:ff:fed8:92aaAS20857 TRANSIP-AS - Signet B.V., NL AS20857 TRANSIP-AS - Signet B.V., NL-
dns3.nh1816.net20.126.127.81 2603:1020:200::682f:a3afAS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-
dns4.nh1816.net93.119.13.101 2a01:7c8:bb09:260:5054:ff:fe36:30beAS20857 TRANSIP-AS - Signet B.V., NL AS20857 TRANSIP-AS - Signet B.V., NL-

Checks

  • ✓ 3 nameservers #6
    Delegated to dns1.nh1816.net, dns3.nh1816.net, dns4.nh1816.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 3 IPv4 /24s and 3 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS20857 (TRANSIP-AS - Signet B.V., NL): 4 addresses; AS8075 (MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US): 2 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

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.nh1816.net 31.14.99.71NOERROR, 11 ms, authoritativenoyes / yesrefused9.18.41-1~deb12u1-Debian
dns1.nh1816.net 2a01:7c8:bb02:123:5054:ff:fed8:92aaNOERROR, 11 ms, authoritativenoyes / yesrefused9.18.41-1~deb12u1-Debian
dns3.nh1816.net 20.126.127.81NOERROR, 12 ms, authoritativenoyes / yesrefused9.20.29-1~deb13u1-Debian
dns3.nh1816.net 2603:1020:200::682f:a3afNOERROR, 11 ms, authoritativenoyes / yesrefused9.20.29-1~deb13u1-Debian
dns4.nh1816.net 93.119.13.101NOERROR, 11 ms, authoritativenoyes / yesrefused9.20.29-1~deb13u1-Debian
dns4.nh1816.net 2a01:7c8:bb09:260:5054:ff:fe36:30beNOERROR, 12 ms, authoritativenoyes / yesrefused9.20.29-1~deb13u1-Debian

Checks

  • ✓ All respond #14
    All 6 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: dns1.nh1816.net: "9.18.41-1~deb12u1-Debian"; dns3.nh1816.net: "9.20.29-1~deb13u1-Debian"; dns4.nh1816.net: "9.20.29-1~deb13u1-Debian". 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 2024048813 · primary dns1.nh1816.net

Found

Primary (MNAME)
dns1.nh1816.net
Contact (RNAME)
postmaster.nh1816.nl
Serial
2024048813
Refresh / retry
86400 s / 7200 s
Expire
3600000 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
dns1.nh1816.net (31.14.99.71)2024048813
dns1.nh1816.net (2a01:7c8:bb02:123:5054:ff:fed8:92aa)2024048813
dns3.nh1816.net (20.126.127.81)2024048813
dns3.nh1816.net (2603:1020:200::682f:a3af)2024048813
dns4.nh1816.net (93.119.13.101)2024048813
dns4.nh1816.net (2a01:7c8:bb09:260:5054:ff:fe36:30be)2024048813

Checks

  • ✓ Serial 2024048813 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 2h, expire 1000h, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.nh1816.net is one of the listed nameservers.
  • ✓ Contact postmaster@nh1816.nl #25
    The SOA RNAME postmaster.nh1816.nl means postmaster@nh1816.nl.
  • ✓ Timestamp serial #26
    The serial 2024048813 is a Unix timestamp (2034-02-20 11:46 UTC).

DNSSEC

info

Signed, DS published at parent

Found

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

DS at the parent

Key tagAlgorithmDigestMatches a key
20421ECDSAP256SHA256 (13)SHA256 8B95E2112A3888B9…yes

DNSKEY in the zone

Key tagRoleAlgorithm
20421KSK (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 20421 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-10-30 #30
    The earliest DNSKEY/SOA signature expires at 2026-10-30 11:38 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

17 records at the apex

Found

Read from
31.14.99.71:53
TypeValueTTL
SOAdns1.nh1816.net. postmaster.nh1816.nl. 2024048813 86400 7200 3600000 360086400
NSdns1.nh1816.net.3600
NSdns4.nh1816.net.3600
NSdns3.nh1816.net.3600
A185.17.83.83600
MX10 nh1816-nl.mail.protection.outlook.com.600
TXT"DomainVerification=K6YZPDH1H1FR9RR9STEB5GMEW0357AKOH0ENRNN10NW9BJHIS8F8JQSIWPH1H0B8"300
TXT"MS=ms38016299"300
TXT"_gj3hrlhoq0kxntz8dmofiayqctrw0fx"300
TXT"atlassian-domain-verification=pH0z9NabiUhai8DiUc8dOI9C8UwPWlMDUaPBCrueL7y2QEJCRpBjR/IlRxduBwRH"300
TXT"_mi32678abhu08vkmheol000oy0sfoec"300
TXT"zb0r392xl1v95y4kfnj8lkbq4d0y42g7"300
TXT"_1cglxo0hoqjlceaiyc3xsx9o6hch0jc"300
TXT"apple-domain-verification=SETf9s9yyYDGMOVO"300
TXT"7s9/evPVBCZrz4hcNCnBE9NQf6TvIpnZkqI2pJq9eQYbWwcqCofHww2Wq8OrgLviWSLlVHngpVp3TNHJK17u2Q=="300
TXT"v=spf1 ip4:52.101.73.2/32 ip4:52.101.73.30/32 ip4:52.101.73.8/32 ip4:52.101.68.32/32 ip4:52.101.73.16/32 ip4:52.101.68.3/32 ip4:52.101.73.1/32" " include:spf.bluem.nl include:spf.flowmailer.net ip4:185.17.83.64/26 include:spf.topdesk.net include:lms.plusport.com ip4:31.7.7.54 a:smtp.bit.nl" " include:spf.protection.outlook.com include:spf.emailsignatures365.com include:_spf.spotlergroup.com include:spf.tribecrm.nl ~all"300
TXT"bettyblocks-domain-verification=5adfc4780e39ae9a1e501321f98904f4325749f9dd2c821629d3b811cd03e493"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, MX 10m, NS 1h.
  • ✓ 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