Domain report: onderwijskiezer.be

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.bmgroup.be, ns1.serverpark.be, ns2.bmgroup.be, ns2.serverpark.be

Found

Parent zone: be
Delegation from: a.nsset.be (194.0.6.1)
NS at the parent: ns1.bmgroup.be, ns1.serverpark.be, ns2.bmgroup.be, ns2.serverpark.be
NS in the zone: ns1.bmgroup.be, ns1.serverpark.be, ns2.bmgroup.be, ns2.serverpark.be

Nameserver	Addresses	Network (AS)	Glue
ns1.bmgroup.be	188.40.138.137 2a01:4f8:221:ac4::3	AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE	188.40.138.137 2a01:4f8:221:ac4::3
ns1.serverpark.be	176.9.35.17 2a01:4f8:150:4108::3	AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE	176.9.35.17 2a01:4f8:150:4108::3
ns2.bmgroup.be	176.9.35.17 2a01:4f8:150:4108::4	AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE	176.9.35.17 2a01:4f8:150:4108::4
ns2.serverpark.be	188.40.138.137 2a01:4f8:221:ac4::4	AS24940 HETZNER-AS - Hetzner Online GmbH, DE -	188.40.138.137 2a01:4f8:221:ac4::4

Checks

✓ 4 nameservers #6

Delegated to ns1.bmgroup.be, ns1.serverpark.be, ns2.bmgroup.be, ns2.serverpark.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 2 IPv4 /24s and 2 IPv6 /48s.
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 7 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
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

Nameservers

fail

6 of 8 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.bmgroup.be 188.40.138.137	NOERROR, 2 ms, authoritative	no	yes / yes	refused	PowerDNS Authoritative Server 3.4.11 (jenkins@autotest.powerdns.com built 20170116223245 mockbuild@buildhw-05.phx2.fedoraproject.org)
ns1.bmgroup.be 2a01:4f8:221:ac4::3	no response	no	no / no	-	-
ns1.serverpark.be 176.9.35.17	NOERROR, 3 ms, authoritative	no	yes / yes	ALLOWED (42 records)	PowerDNS Authoritative Server 3.3.3 (jenkins@autotest.powerdns.com built 20161031213210 mockbuild@)
ns1.serverpark.be 2a01:4f8:150:4108::3	NOERROR, 3 ms, authoritative	no	yes / yes	ALLOWED (42 records)	PowerDNS Authoritative Server 3.3.3 (jenkins@autotest.powerdns.com built 20161031213210 mockbuild@)
ns2.bmgroup.be 176.9.35.17	NOERROR, 2 ms, authoritative	no	yes / yes	ALLOWED (42 records)	PowerDNS Authoritative Server 3.3.3 (jenkins@autotest.powerdns.com built 20161031213210 mockbuild@)
ns2.bmgroup.be 2a01:4f8:150:4108::4	NOERROR, 6 ms, authoritative	no	yes / yes	ALLOWED (42 records)	PowerDNS Authoritative Server 3.3.3 (jenkins@autotest.powerdns.com built 20161031213210 mockbuild@)
ns2.serverpark.be 188.40.138.137	NOERROR, 4 ms, authoritative	no	yes / yes	refused	PowerDNS Authoritative Server 3.4.11 (jenkins@autotest.powerdns.com built 20170116223245 mockbuild@buildhw-05.phx2.fedoraproject.org)
ns2.serverpark.be 2a01:4f8:221:ac4::4	no response	no	no / no	-	-

Checks

✗

Nameservers not responding

These addresses did not answer, so resolvers waste time on timeouts: ns1.bmgroup.be (2a01:4f8:221:ac4::3): read udp [2a01:4f8:1c1c:eebf::1]:50700->[2a01:4f8:221:ac4::3]:53: read: permission denied; ns2.serverpark.be (2a01:4f8:221:ac4::4): read udp [2a01:4f8:1c1c:eebf::1]:60644->[2a01:4f8:221:ac4::4]:53: read: permission denied.

#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: ns1.bmgroup.be: "PowerDNS Authoritative Server 3.4.11 (jenkins@autotest.powerdns.com built 20170116223245 mockbuild@buildhw-05.phx2.fedoraproject.org)"; ns1.serverpark.be: "PowerDNS Authoritative Server 3.3.3 (jenkins@autotest.powerdns.com built 20161031213210 mockbuild@)"; ns2.bmgroup.be: "PowerDNS Authoritative Server 3.3.3 (jenkins@autotest.powerdns.com built 20161031213210 mockbuild@)"; ns2.serverpark.be: "PowerDNS Authoritative Server 3.4.11 (jenkins@autotest.powerdns.com built 20170116223245 mockbuild@buildhw-05.phx2.fedoraproject.org)". 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: ns1.serverpark.be (176.9.35.17): 42 records; ns1.serverpark.be (2a01:4f8:150:4108::3): 42 records; ns2.bmgroup.be (176.9.35.17): 42 records; ns2.bmgroup.be (2a01:4f8:150:4108::4): 42 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 2026090101 · primary ns1.bmgroup.be

Found

Primary (MNAME): ns1.bmgroup.be
Contact (RNAME): postmaster.bmgroup.be
Serial: 2026090101
Refresh / retry: 3000 s / 1200 s
Expire: 432000 s
Negative TTL: 3600 s

Serial per nameserver

Nameserver	Serial
ns1.bmgroup.be (188.40.138.137)	2026090101
ns1.serverpark.be (176.9.35.17)	2026090101
ns1.serverpark.be (2a01:4f8:150:4108::3)	2026090101
ns2.bmgroup.be (176.9.35.17)	2026090101
ns2.bmgroup.be (2a01:4f8:150:4108::4)	2026090101
ns2.serverpark.be (188.40.138.137)	2026090101

Checks

✓ Serial 2026090101 everywhere #22

All nameservers serve the same version of the zone.
!

Unusual SOA timers

expire 5d is shorter than 7d; secondaries stop answering too soon when the primary is down. Current values: refresh 50m, retry 20m, expire 5d, negative TTL 1h.

#23
✓ Primary is a public nameserver #24

The primary nameserver ns1.bmgroup.be is one of the listed nameservers.
✓ Contact postmaster@bmgroup.be #25

The SOA RNAME postmaster.bmgroup.be means postmaster@bmgroup.be.
✓ Date-based serial #26

The serial 2026090101 follows the YYYYMMDDnn convention (2026-09-01).

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

info

14 records at the apex

Found

Read from: 188.40.138.137:53

Type	Value	TTL
SOA	ns1.bmgroup.be. postmaster.bmgroup.be. 2026090101 3000 1200 432000 3600	14400
NS	ns1.serverpark.be.	14400
NS	ns2.serverpark.be.	14400
NS	ns1.bmgroup.be.	14400
NS	ns2.bmgroup.be.	14400
A	78.46.41.46	14400
MX	5 alt1.aspmx.l.google.com.	86400
MX	1 aspmx.l.google.com.	300
MX	5 alt2.aspmx.l.google.com.	86400
MX	10 aspmx3.googlemail.com.	86400
MX	10 aspmx2.googlemail.com.	86400
TXT	"google-site-verification=1cT-E_dnPRGeI3GDW0kUBM5h_dWH_A6TPNxgwZG4nsg"	86400
TXT	"v=spf1 mx ptr ip4:144.76.64.180 ip4:78.46.41.46 ip4:46.4.132.213 ip4:52.211.67.105 include:spf.mailjet.com include:amazonses.com include:spf.flexmail.eu ~all"	300
TXT	"amazonses:YFrsiZtBFeLtHLa7M45GUxWx6EMFV/0+nRFaMYtfGgM="	3600

Checks

✓ TTLs within range #32

TTLs: A 4h, MX 1d, NS 4h. The NS TTL at the parent is 1d and in the zone 4h; resolvers may use either.
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
i

Wildcard record

A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.

#34
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