Domain report: kuleuven-kulak.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

info

dns-slave1.kulnet.kuleuven.be, dns-slave2.kulnet.kuleuven.be, ns.kulak.be, ns2.kulak.be

Parent zone: be
Delegation from: a.nsset.be (194.0.6.1)
NS at the parent: dns-slave1.kulnet.kuleuven.be, dns-slave2.kulnet.kuleuven.be, ns.kulak.be, ns2.kulak.be
NS in the zone: dns-slave1.kulnet.kuleuven.be, dns-slave2.kulnet.kuleuven.be, ns.kulak.be, ns2.kulak.be

Nameserver	Addresses	Network (AS)	Glue
dns-slave1.kulnet.kuleuven.be	134.58.126.7 2a02:2c40:0:40::53:7	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	-
dns-slave2.kulnet.kuleuven.be	134.58.126.8 2a02:2c40:0:40::53:8	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	-
ns.kulak.be	134.58.132.1 2a02:2c40:0:68::1:1	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	134.58.132.1 2a02:2c40:0:68::1:1
ns2.kulak.be	134.58.132.2 2a02:2c40:0:68::1:2	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	134.58.132.2 2a02:2c40:0:68::1:2

✓ 4 nameservers #6

Delegated to dns-slave1.kulnet.kuleuven.be, dns-slave2.kulnet.kuleuven.be, ns.kulak.be, ns2.kulak.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.
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One address family in one network

all IPv6 addresses are in 2a02:2c40::/48, while the other address family is spread over several networks.

#10
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All nameservers in one AS

All nameserver addresses are announced by one network operator (AS2611 (BELNET - BELNET, BE): 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
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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.

pass

8 of 8 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
dns-slave1.kulnet.kuleuven.be 134.58.126.7	NOERROR, 18 ms, authoritative	no	yes / yes	refused	-
dns-slave1.kulnet.kuleuven.be 2a02:2c40:0:40::53:7	NOERROR, 19 ms, authoritative	no	yes / yes	refused	-
dns-slave2.kulnet.kuleuven.be 134.58.126.8	NOERROR, 19 ms, authoritative	no	yes / yes	refused	-
dns-slave2.kulnet.kuleuven.be 2a02:2c40:0:40::53:8	NOERROR, 19 ms, authoritative	no	yes / yes	refused	-
ns.kulak.be 134.58.132.1	NOERROR, 19 ms, authoritative	no	yes / yes	refused	-
ns.kulak.be 2a02:2c40:0:68::1:1	NOERROR, 20 ms, authoritative	no	yes / yes	refused	-
ns2.kulak.be 134.58.132.2	NOERROR, 20 ms, authoritative	no	yes / yes	refused	-
ns2.kulak.be 2a02:2c40:0:68::1:2	NOERROR, 20 ms, authoritative	no	yes / yes	refused	-

✓ 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.
✓ No version disclosed #17

The nameservers don't reveal their software version.
✓ 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.

pass

serial 2026091100 · primary ns.kulak.be

Nameserver	Serial
dns-slave1.kulnet.kuleuven.be (134.58.126.7)	2026091100
dns-slave1.kulnet.kuleuven.be (2a02:2c40:0:40::53:7)	2026091100
dns-slave2.kulnet.kuleuven.be (134.58.126.8)	2026091100
dns-slave2.kulnet.kuleuven.be (2a02:2c40:0:40::53:8)	2026091100
ns.kulak.be (134.58.132.1)	2026091100
ns.kulak.be (2a02:2c40:0:68::1:1)	2026091100
ns2.kulak.be (134.58.132.2)	2026091100
ns2.kulak.be (2a02:2c40:0:68::1:2)	2026091100

✓ Serial 2026091100 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 1h, retry 5m, expire 20d, negative TTL 1h.
✓ Primary is a public nameserver #24

The primary nameserver ns.kulak.be is one of the listed nameservers.
✓ Contact hostmaster@kulak.be #25

The SOA RNAME hostmaster.kulak.be means hostmaster@kulak.be.
✓ Date-based serial #26

The serial 2026091100 follows the YYYYMMDDnn convention (2026-09-11).

warn

Not signed

info

17 records at the apex

Type	Value	TTL
SOA	ns.kulak.be. hostmaster.kulak.be. 2026091100 3600 300 1728000 3600	300
NS	ns2.kulak.be.	300
NS	ns.kulak.be.	300
NS	dns-slave1.kulnet.kuleuven.be.	300
NS	dns-slave2.kulnet.kuleuven.be.	300
A	134.58.134.35	3600
AAAA	2a02:2c40:0:81::81:35	3600
MX	60 cavin02.kuleuven.be.	3600
MX	50 kor-s-velox.kulak.be.	3600
MX	10 cavin.kuleuven.be.	3600
MX	60 cavin03.kuleuven.be.	3600
MX	60 cavin01.kuleuven.be.	3600
TXT	"v=spf1 include:spf.flexmail.eu include:kuleuven.be ?all"	3600
TXT	"MS=8335878153248351FA227C0D3382A7728C03366E"	3600
TXT	"google-site-verification=7HGB3tQJgM1YrGzziLB9CiYfAVlAkuy2Y1Bb5bkhZ9Q"	3600
TXT	"v=spf1 include:_spf.kuleuven.be ~all"	3600
TXT	"MS=ms89406141"	3600

✓ TTLs within range #32

TTLs: A 1h, AAAA 1h, MX 1h, NS 5m. The NS TTL at the parent is 1d and in the zone 5m; resolvers may use either.
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
✓ No wildcard #34

Names that don't exist return NXDOMAIN.
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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