zol.be

Checked 22 October 2026, 07:31 UTC · via 8.8.8.8
!Passed with warnings
22 passed 3 warnings 0 failed 4 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

info

ns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org, ns4-05.azure-dns.info

Found

Parent zone
be
Delegation from
a.nsset.be (194.0.6.1)
NS at the parent
ns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org, ns4-05.azure-dns.info
NS in the zone
ns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org, ns4-05.azure-dns.info
NameserverAddressesNetwork (AS)Glue
ns1-05.azure-dns.com13.107.236.5 2603:1061:0:700::5AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-
ns2-05.azure-dns.net150.171.21.5 2620:1ec:8ec:700::5AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-
ns3-05.azure-dns.org204.14.183.5 2a01:111:4000:700::5AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-
ns4-05.azure-dns.info208.84.5.5 2620:1ec:bda:700::5AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org, ns4-05.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
ns1-05.azure-dns.com 13.107.236.5NOERROR, 6 ms, authoritativenoyes / yesrefused-
ns1-05.azure-dns.com 2603:1061:0:700::5NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns2-05.azure-dns.net 150.171.21.5NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns2-05.azure-dns.net 2620:1ec:8ec:700::5NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns3-05.azure-dns.org 204.14.183.5NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns3-05.azure-dns.org 2a01:111:4000:700::5NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns4-05.azure-dns.info 208.84.5.5NOERROR, 4 ms, authoritativenoyes / yesrefusedKnot DNS 3.1.2.1770717641.d6b376aff
ns4-05.azure-dns.info 2620:1ec:bda:700::5NOERROR, 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: ns4-05.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 2009112554 · primary ns1-05.azure-dns.com

Found

Primary (MNAME)
ns1-05.azure-dns.com
Contact (RNAME)
hostmaster.zol.be
Serial
2009112554
Refresh / retry
3600 s / 600 s
Expire
1814400 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1-05.azure-dns.com (13.107.236.5)2009112554
ns1-05.azure-dns.com (2603:1061:0:700::5)2009112554
ns2-05.azure-dns.net (150.171.21.5)2009112554
ns2-05.azure-dns.net (2620:1ec:8ec:700::5)2009112554
ns3-05.azure-dns.org (204.14.183.5)2009112554
ns3-05.azure-dns.org (2a01:111:4000:700::5)2009112554
ns4-05.azure-dns.info (208.84.5.5)2009112554
ns4-05.azure-dns.info (2620:1ec:bda:700::5)2009112554

Checks

  • ✓ Serial 2009112554 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 10m, expire 21d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1-05.azure-dns.com is one of the listed nameservers.
  • ✓ Contact hostmaster@zol.be #25
    The SOA RNAME hostmaster.zol.be means hostmaster@zol.be.
  • ✓ Date-based serial #26
    The serial 2009112554 follows the YYYYMMDDnn convention (2009-11-25).

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

25 records at the apex

Found

Read from
13.107.236.5:53
TypeValueTTL
SOAns1-05.azure-dns.com. hostmaster.zol.be. 2009112554 3600 600 1814400 36003600
NSns1-05.azure-dns.com.3600
NSns2-05.azure-dns.net.3600
NSns3-05.azure-dns.org.3600
NSns4-05.azure-dns.info.3600
A194.32.155.1671
AAAA2a02:5b41:4:440::6460
MX10 zol-be.mail.protection.outlook.com.600
TXT"MS=ms41524100"3600
TXT"v=spf1 mx a ip4:193.168.148.26 ip4:193.168.148.23 ip4:193.168.148.40 ip4:91.223.195.2 include:spf.protection.outlook.com -all"3600
TXT"MS=ms84115680"3600
TXT"MS=ms96784213"3600
TXT"75ad89bd94244f40a0c5d6d4a786ab90"3600
TXT"P40gUk1/VgTZq2saM/opqQZkRcgX3hdP0dUw2VZvfNDQUyMXuFDQ8B62Tsr67PgUhAISpiNNccZzjzwZMWFsNg=="3600
TXT"5KHFLB220CIYIIKVS1Z09XLB7OOK4I3Y16C1T8WG"3600
TXT"ZOOM_verify_0tghUHKxS5GKdBc8gy_A7A"3600
TXT"apple-domain-verification=8tgAwRCg0hqnjO0y"3600
TXT"globalsign-domain-verification=9E8BD4A5C167D37002B811F05FE8CC7B"3600
TXT"globalsign-domain-verification=d73a0f09826cd03eff6b4a944a55a2f5"3600
TXT"globalsign-domain-verification=a8e89a3d27b225a57c464db2d2ce3579"3600
TXT"Rm8mnserRSNP4nIl6Fdv5kKo3C14S2wJ"3600
TXT"globalsign-domain-verification=B02BF20954859039603B58D126D268CA"3600
TXT"atlassian-domain-verification=KB2XYm8xbKRNsQJnAPyMVytOjzSghAruXk3hA1sh0KjWw6MaJGcvtsx41bMbpJzJ"3600
TXT"jsHcCKId9Q3o/crdWfjAfsgxjz6/0gIU45htbatDkgeHGw2FGvk16rDXofZcLfUDPBnPe4DUiw+Neo5FDxGeZA=="3600
TXT"docusign=c8002951-86a6-4331-b0bc-9cc6569debe9"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1s), AAAA (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.
  • 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