krefel.be

Checked 22 October 2026, 06:41 UTC · via 8.8.8.8
!Passed with warnings
20 passed 4 warnings 0 failed 5 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.clf.proximus.be, ns2.clf.proximus.be, ns3.clf.proximus.be

Found

Parent zone
be
Delegation from
a.nsset.be (194.0.6.1)
NS at the parent
ns1.clf.proximus.be, ns2.clf.proximus.be, ns3.clf.proximus.be
NS in the zone
ns1.clf.proximus.be, ns2.clf.proximus.be, ns3.clf.proximus.be
NameserverAddressesNetwork (AS)Glue
ns1.clf.proximus.be198.41.223.107AS13335 CLOUDFLARENET - Cloudflare, Inc., US-
ns2.clf.proximus.be198.41.222.171AS13335 CLOUDFLARENET - Cloudflare, Inc., US-
ns3.clf.proximus.be162.159.11.158AS13335 CLOUDFLARENET - Cloudflare, Inc., US-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.clf.proximus.be, ns2.clf.proximus.be, ns3.clf.proximus.be.
  • ✓ 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 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 3 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

warn

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.clf.proximus.be 198.41.223.107NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
ns2.clf.proximus.be 198.41.222.171NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
ns3.clf.proximus.be 162.159.11.158NOERROR, 13 ms, authoritativenoyes / yesrefused2026.10.2

Checks

  • ✓ All respond #14
    All 3 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: ns1.clf.proximus.be: "2026.10.2"; ns2.clf.proximus.be: "2026.10.2"; ns3.clf.proximus.be: "2026.10.2". 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 2416945236 · primary ns1.clf.proximus.be

Found

Primary (MNAME)
ns1.clf.proximus.be
Contact (RNAME)
dns.cloudflare.com
Serial
2416945236
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
ns1.clf.proximus.be (198.41.223.107)2416945236
ns2.clf.proximus.be (198.41.222.171)2416945236
ns3.clf.proximus.be (162.159.11.158)2416945236

Checks

  • ✓ Serial 2416945236 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.clf.proximus.be is one of the listed nameservers.
  • ✓ Contact dns@cloudflare.com #25
    The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
  • ✓ Timestamp serial #26
    The serial 2416945236 is a Unix timestamp (2046-08-03 21:40 UTC).

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

17 records at the apex

Found

Read from
198.41.223.107:53
TypeValueTTL
SOAns1.clf.proximus.be. dns.cloudflare.com. 2416945236 10000 2400 604800 18001800
NSns1.clf.proximus.be.86400
NSns2.clf.proximus.be.86400
NSns3.clf.proximus.be.86400
A18.185.236.7960
MX10 mxa-001b0b02.gslb.pphosted.com.3600
MX20 mxb-001b0b02.gslb.pphosted.com.3600
TXT"MS=FC06787B602BA1D790C7F22FA1B50560B8B044D7"60
TXT"PROX-AP-XG90TY4901Z"60
TXT"atlassian-domain-verification=c3mbYR0yVjhqPx9/p79SVIAM78HJqgrry/ofkSerLHkuEusqbfp7TosC63aPyqF1"60
TXT"atlassian-sending-domain-verification=fb109c48-e934-465e-921a-e96a1b12373c"60
TXT"brevo-code:9def3d8746c5aa8d320cab21c76ea3f9"60
TXT"facebook-domain-verification=830kxc3porx84wf2xsiz6mu0uvt2rp"60
TXT"google-site-verification=9IPDrsfURCxuwEO6Z-pfQ_eMff1PyG4f16P_7nDWDuM"60
TXT"google-site-verification=n-liX5nyMG8A7kwm1wuaM7xHQCNzf-hswsArNP-6-B8"60
TXT"loaderio=86ca0fddb5b66c0471a54712c3657364"60
TXT"v=spf1 include:_spf.google.com include:spf-001b0b02.pphosted.com include:_spf.salesforce.com include:spf.mandrillapp.com ip4:194.78.26.30 ip4:172.199.136.22 ip4:48.222.160.41 ip4:172.199.240.10 ip4:48.222.144.22 a:spf001.xpofleet.com -all"60

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.
    #32
  • ✓ 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