luxembourg.be

Checked 22 October 2026, 06:50 UTC · via 8.8.8.8
!Passed with warnings
17 passed 5 warnings 0 failed 7 info

Registration

info

.be country-code

Found

TLD
.be (country-code)
ICANN policies apply
no

Checks

  • i
    .be 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
    .be is delegated in the root zone and DNSSEC-signed.
  • i
    Registration data not available
    No registration data via RDAP: the registry of .be offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.
    #3

Delegation

warn

ns1.luxembourg.be, ns2.luxembourg.be

Found

Parent zone
be
Delegation from
a.nsset.be (194.0.6.1)
NS at the parent
ns1.luxembourg.be, ns2.luxembourg.be
NS in the zone
ns1.luxembourg.be, ns2.luxembourg.be
NameserverAddressesNetwork (AS)Glue
ns1.luxembourg.be193.191.178.13AS2611 BELNET - BELNET, BE193.191.178.13 2001:6a8:900:fff1::64
ns2.luxembourg.be193.191.178.14AS2611 BELNET - BELNET, BE193.191.178.14 2001:6a8:900:fff1::6e

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.luxembourg.be, ns2.luxembourg.be.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: ns1.luxembourg.be (glue 193.191.178.13, 2001:6a8:900:fff1::64, zone 193.191.178.13); ns2.luxembourg.be (glue 193.191.178.14, 2001:6a8:900:fff1::6e, zone 193.191.178.14). Update the glue at your registrar.
    #8
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • !
    Nameservers in one network
    all IPv4 addresses are in 193.191.178.0/24. A single network failure takes all nameservers down; RFC 2182 recommends topologically separate networks (anycast setups are an exception).
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS2611 (BELNET - BELNET, BE): 2 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 .be
    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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

info

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.luxembourg.be 193.191.178.13NOERROR, 21 ms, authoritativenoyes / yesrefusednot available
ns2.luxembourg.be 193.191.178.14NOERROR, 21 ms, authoritativenoyes / yesrefusednot available

Checks

  • ✓ All respond #14
    All 2 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1.luxembourg.be: "not available"; ns2.luxembourg.be: "not available".
    #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

info

serial 2026092901 · primary dns-int-02.luxembourg.be

Found

Primary (MNAME)
dns-int-02.luxembourg.be
Contact (RNAME)
hostmaster.province.luxembourg.be
Serial
2026092901
Refresh / retry
3600 s / 300 s
Expire
3600000 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.luxembourg.be (193.191.178.13)2026092901
ns2.luxembourg.be (193.191.178.14)2026092901

Checks

  • ✓ Serial 2026092901 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 5m, expire 1000h, negative TTL 1h.
  • i
    Hidden master (not resolvable)
    The primary nameserver dns-int-02.luxembourg.be is not listed as a nameserver and does not resolve publicly: a hidden master, or a placeholder name. Some tools (e.g. dynamic updates) use MNAME to find the primary.
    #24
  • ✓ Contact hostmaster@province.luxembourg.be #25
    The SOA RNAME hostmaster.province.luxembourg.be means hostmaster@province.luxembourg.be.
  • ✓ Date-based serial #26
    The serial 2026092901 follows the YYYYMMDDnn convention (2026-09-29).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

warn

13 records at the apex

Found

Read from
193.191.178.13:53
TypeValueTTL
SOAdns-int-02.luxembourg.be. hostmaster.province.luxembourg.be. 2026092901 3600 300 3600000 36003600
NSns2.luxembourg.be.3600
NSns1.luxembourg.be.3600
A193.190.113.12360
MX10 mx.luxembourg.be.3600
TXT"HARICA-jDHfINiN17r4ZMINdHS"60
TXT"v=spf1 mx a ip4:193.191.178.15/32 include:spf.protection.outlook.com include:spf.sendinblue.com include:spf.brevo.com ~all"60
TXT"google-site-verification=vXnVuAXyILYyYo7NhEZtn0J1omFMcySxlYjNo1QUT-U"60
CAA0 issue "pki.goog"3600
CAA0 issue "letsencrypt.org"3600
CAA0 iodef "mailto:abuse2@province.luxembourg.be"3600
CAA0 issuewild "harica.gr"3600
CAA0 issue "harica.gr"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 1h; resolvers may use either.
    #32
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: pki.goog, letsencrypt.org, harica.gr.