Domain report: be2concept.be

Registration

info

.be country-code

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.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.
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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

warn

ns1.o2switch.net, ns2.o2switch.net

Nameserver	Addresses	Network (AS)	Glue
ns1.o2switch.net	109.234.160.5	AS50474 O2SWITCH - O2SWITCH SAS, FR	-
ns2.o2switch.net	109.234.161.5	AS50474 O2SWITCH - O2SWITCH SAS, FR	-

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.o2switch.net, ns2.o2switch.net.

#6
✓ 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 0 IPv6 /48s.
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All nameservers in one AS

All nameserver addresses are announced by one network operator (AS50474 (O2SWITCH - O2SWITCH SAS, FR): 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
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All nameserver names under .net

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

fail

2 of 2 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.o2switch.net 109.234.160.5	NOERROR, 24 ms, authoritative	no	no / yes	refused	PowerDNS Authoritative Server 4.9.17 (built Aug 10 2026 00:00:00 by root@bh-centos-9.dev.cpanel.net)
ns2.o2switch.net 109.234.161.5	NOERROR, 20 ms, authoritative	no	no / yes	refused	PowerDNS Authoritative Server 4.9.17 (built Aug 10 2026 00:00:00 by root@bh-centos-9.dev.cpanel.net)

✓ 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.
!

Software version disclosed

These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.o2switch.net: "PowerDNS Authoritative Server 4.9.17 (built Aug 10 2026 00:00:00 by root@bh-centos-9.dev.cpanel.net)"; ns2.o2switch.net: "PowerDNS Authoritative Server 4.9.17 (built Aug 10 2026 00:00:00 by root@bh-centos-9.dev.cpanel.net)". Hide or replace the version string.

#17
✓ Zone transfers refused #18

No nameserver allows a zone transfer to the public.
✗

No DNS over TCP

DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns1.o2switch.net (109.234.160.5): dial tcp 109.234.160.5:53: i/o timeout; ns2.o2switch.net (109.234.161.5): dial tcp 109.234.161.5:53: i/o timeout.

#19
✓ EDNS supported #20

All nameservers support EDNS(0).
✓ Public addresses #21

All nameserver addresses are publicly routable.

warn

serial 2023021500 · primary ns1.o2switch.net

Nameserver	Serial
ns1.o2switch.net (109.234.160.5)	2023021500
ns2.o2switch.net (109.234.161.5)	2023021500

✓ Serial 2023021500 everywhere #22

All nameservers serve the same version of the zone.
!

Unusual SOA timers

retry 2h should be shorter than refresh 1h. Current values: refresh 1h, retry 2h, expire 14d, negative TTL 1d.

#23
✓ Primary is a public nameserver #24

The primary nameserver ns1.o2switch.net is one of the listed nameservers.
✓ Contact systemshl@o2switch.fr #25

The SOA RNAME systemshl.o2switch.fr means systemshl@o2switch.fr.
✓ Date-based serial #26

The serial 2023021500 follows the YYYYMMDDnn convention (2023-02-15).

warn

Not signed

info

6 records at the apex

Type	Value	TTL
SOA	ns1.o2switch.net. systemshl.o2switch.fr. 2023021500 3600 7200 1209600 86400	86400
NS	ns1.o2switch.net.	86400
NS	ns2.o2switch.net.	86400
A	109.234.161.19	14400
MX	0 be2concept.be.	14400
TXT	"v=spf1 ip4:109.234.161.19 +a +mx +include:spf.jabatus.fr ~all"	14400