seatsandsofas.nl

Checked 22 October 2026, 15:50 UTC · via 8.8.8.8
✗Problems found
19 passed 4 warnings 2 failed 7 info

Registration

info

.nl country-code

Found

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

Delegation

info

ns.seatsandsofas.nl, ns2.seatsandsofas.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns.seatsandsofas.nl, ns2.seatsandsofas.nl
NS in the zone
ns.seatsandsofas.nl, ns2.seatsandsofas.nl
NameserverAddressesNetwork (AS)Glue
ns.seatsandsofas.nl87.213.98.178AS13127 Odido - Odido Netherlands B.V., NL87.213.98.178
ns2.seatsandsofas.nl31.3.110.162 2a03:7900:111:0:a4fb:16ff:fe69:d48fAS197731 TUXIS - The Internet Engineering Group B.V., NL AS197731 TUXIS - The Internet Engineering Group B.V., NL31.3.110.162 2a03:7900:111:0:a4fb:16ff:fe69:d48f

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns.seatsandsofas.nl, ns2.seatsandsofas.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: ns.seatsandsofas.nl, ns2.seatsandsofas.nl.
  • ✓ 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 2 IPv4 /24s and 1 IPv6 /48.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS13127 (Odido - Odido Netherlands B.V., NL): 1 address; AS197731 (TUXIS - The Internet Engineering Group B.V., NL): 2 addresses.
  • 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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns.seatsandsofas.nl.
    #13

Nameservers

fail

2 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.seatsandsofas.nl 87.213.98.178NOERROR, 15 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.22.04.7-Ubuntu
ns2.seatsandsofas.nl 31.3.110.162NOERROR, 11 ms, authoritativenoyes / yesALLOWED (250 records)9.18.12-0ubuntu0.22.04.3-Ubuntu
ns2.seatsandsofas.nl 2a03:7900:111:0:a4fb:16ff:fe69:d48fno responsenono / no--

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: ns2.seatsandsofas.nl (2a03:7900:111:0:a4fb:16ff:fe69:d48f): read udp [2a01:4f8:1c1c:eebf::1]:49172->[2a03:7900:111:0:a4fb:16ff:fe69:d48f]:53: i/o timeout.
    #14
  • ✓ 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: ns.seatsandsofas.nl: "9.18.39-0ubuntu0.22.04.7-Ubuntu"; ns2.seatsandsofas.nl: "9.18.12-0ubuntu0.22.04.3-Ubuntu". Hide or replace the version string.
    #17
  • ✗
    Zone transfer allowed
    These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: ns2.seatsandsofas.nl (31.3.110.162): 250 records. Restrict zone transfers to your secondary servers.
    #18
  • ✓ 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

warn

serial 2026073224 · primary ns.seatsandsofas.nl

Found

Primary (MNAME)
ns.seatsandsofas.nl
Contact (RNAME)
hostmaster.seatsandsofas.nl
Serial
2026073224
Refresh / retry
14400 s / 3600 s
Expire
604800 s
Negative TTL
38400 s

Serial per nameserver

NameserverSerial
ns.seatsandsofas.nl (87.213.98.178)2026073224
ns2.seatsandsofas.nl (31.3.110.162)2026073441

Checks

  • !
    Serials differ
    The nameservers serve different versions of the zone: 2026073224 on ns.seatsandsofas.nl (87.213.98.178); 2026073441 on ns2.seatsandsofas.nl (31.3.110.162). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 7d, negative TTL 640m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.seatsandsofas.nl is one of the listed nameservers.
  • ✓ Contact hostmaster@seatsandsofas.nl #25
    The SOA RNAME hostmaster.seatsandsofas.nl means hostmaster@seatsandsofas.nl.
  • ✓ Timestamp serial #26
    The serial 2026073224 is a Unix timestamp (2034-03-15 22:07 UTC).

DNSSEC

warn

Signed, but no DS at parent

Found

Validated by resolver
no
Denial of existence
NSEC
Signatures valid until
28 October 2026

DNSKEY in the zone

Key tagRoleAlgorithm
49505KSK (257)ECDSAP256SHA256 (13)

Checks

  • !
    Signed but not delegated securely
    The zone is signed but the parent has no DS record, so the signatures are not used. Publish the DS record at your registrar.
    #27
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • !
    Signatures expire soon
    The earliest signature expires at 2026-10-28 17:21 UTC (in 146h0m0s). Check that automatic re-signing works.
    #30
  • 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

11 records at the apex

Found

Read from
87.213.98.178:53
TypeValueTTL
SOAns.seatsandsofas.nl. hostmaster.seatsandsofas.nl. 2026073224 14400 3600 604800 3840038400
NSns.seatsandsofas.nl.38400
NSns2.seatsandsofas.nl.38400
A213.206.208.10738400
AAAA2001:4018:8800:3::5738400
MX10 mail.seatsandsofas.nl.38400
TXT"v=spf1 ip4:31.3.110.162 ip4:35.158.67.243 ip4:31.3.104.161 ip6:2a03:79" "00:111::50d1:bab9:3 ip6:2a03:7900:111:0:a4fb:16ff:fe69:d48f ip6:2a03:7" "900:2:0:31:3:104:34 ip4:31.3.107.70 ip4:87.213.98.178 ip4:87.213.104.1" "45 ip4:87.213.104.147 ip4:87.213.104.149 ip4:185.28.5.136 ip4:195.8.20" "9.100 ip4:85.214.59.230 ip4:188.93.148.186 ip4:87.213.104.147 ip4:91.2" "38.176.152 ip4:139.162.150.110 ip4:50.31.156.96/27 ip4:104.245.209.192" "/26 ip4:50.31.205.0/24 ip4:146.190.232.193 ip4:167.172.44.66 include:s" "e.spf.provider.nl ip4:213.206.208.107 ip6:2001:4018:8800:0003:0000:000" "0:0000:0057 include:spf.brevo.com -all"38400
TXT"MS=34BB335EB8109BACB978512B6A7D6A706B6EC6BD"38400
TXT"facebook-domain-verification=bxcv38zvll9ekci5vcjchvml8pox5x"38400
TXT"brevo-code:1490690889bf61d17a9ea21e30d55fe8"38400
TXT"google-site-verification=oQ3p-RQO4iw0DIfLZaYyItl0FW84rzot6ZF8XE6RdhM"38400

Checks

  • ✓ TTLs within range #32
    TTLs: A 640m, AAAA 640m, MX 640m, NS 640m. The NS TTL at the parent is 1h and in the zone 640m; 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