Domain report: ucl.ac.be

Registration

info

.be country-code

Found

TLD: .be (country-code)
Public suffix: .ac.be
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. Domains are registered under the public suffix .ac.be.

#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.belnet.be, ns1.sri.ucl.ac.be, ns2.belnet.be, ns2.sri.ucl.ac.be, ns3.belnet.be, ns3.sri.ucl.ac.be

Found

Parent zone: ac.be
Delegation from: ns1.belnet.be (193.190.198.14)
NS at the parent: ns1.belnet.be, ns1.sri.ucl.ac.be, ns2.belnet.be, ns2.sri.ucl.ac.be, ns3.belnet.be, ns3.sri.ucl.ac.be
NS in the zone: ns1.belnet.be, ns1.sri.ucl.ac.be, ns2.belnet.be, ns2.sri.ucl.ac.be, ns3.belnet.be, ns3.sri.ucl.ac.be

Nameserver	Addresses	Network (AS)	Glue
ns1.belnet.be	193.190.198.14 2001:6a8:3c80::14	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	-
ns1.sri.ucl.ac.be	130.104.1.1 2001:6a8:3081:1::53	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	130.104.1.1 2001:6a8:3081:1::53
ns2.belnet.be	193.190.182.40 2001:6a8:3c80:c000::40	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	-
ns2.sri.ucl.ac.be	130.104.1.2 2001:6a8:3081:2::53	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	130.104.1.2 2001:6a8:3081:2::53
ns3.belnet.be	194.58.196.32 2a01:3f1:832::53	AS8674 NETNOD-IX - Netnod AB, SE AS8674 NETNOD-IX - Netnod AB, SE	-
ns3.sri.ucl.ac.be	130.104.254.1 2001:6a8:3082:1::53	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	130.104.254.1 2001:6a8:3082:1::53

Checks

✓ 6 nameservers #6

Delegated to ns1.belnet.be, ns1.sri.ucl.ac.be, ns2.belnet.be, ns2.sri.ucl.ac.be, ns3.belnet.be, ns3.sri.ucl.ac.be.
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
✓ Glue present and correct #8

Glue is published for the nameservers inside the zone: ns1.sri.ucl.ac.be, ns2.sri.ucl.ac.be, ns3.sri.ucl.ac.be.
✓ 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 5 IPv4 /24s and 4 IPv6 /48s.
✓ 2 autonomous systems #11

The nameservers are spread over: AS2611 (BELNET - BELNET, BE): 10 addresses; AS8674 (NETNOD-IX - Netnod AB, SE): 2 addresses.
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

info

12 of 12 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.belnet.be 193.190.198.14	NOERROR, 18 ms, authoritative	no	yes / yes	refused	For me to know, for you to guess!
ns1.belnet.be 2001:6a8:3c80::14	NOERROR, 18 ms, authoritative	no	yes / yes	refused	For me to know, for you to guess!
ns1.sri.ucl.ac.be 130.104.1.1	NOERROR, 18 ms, authoritative	no	yes / yes	refused	none
ns1.sri.ucl.ac.be 2001:6a8:3081:1::53	NOERROR, 18 ms, authoritative	no	yes / yes	refused	none
ns2.belnet.be 193.190.182.40	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-
ns2.belnet.be 2001:6a8:3c80:c000::40	NOERROR, 17 ms, authoritative	no	yes / yes	refused	-
ns2.sri.ucl.ac.be 130.104.1.2	NOERROR, 19 ms, authoritative	no	yes / yes	refused	none
ns2.sri.ucl.ac.be 2001:6a8:3081:2::53	NOERROR, 19 ms, authoritative	no	yes / yes	refused	none
ns3.belnet.be 194.58.196.32	NOERROR, 8 ms, authoritative	no	yes / yes	refused	-
ns3.belnet.be 2a01:3f1:832::53	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns3.sri.ucl.ac.be 130.104.254.1	NOERROR, 19 ms, authoritative	no	yes / yes	refused	none
ns3.sri.ucl.ac.be 2001:6a8:3082:1::53	NOERROR, 19 ms, authoritative	no	yes / yes	refused	none

Checks

✓ All respond #14

All 12 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.
i

Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: ns1.belnet.be: "For me to know, for you to guess!"; ns1.sri.ucl.ac.be: "none"; ns2.sri.ucl.ac.be: "none"; ns3.sri.ucl.ac.be: "none".

#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 2026106580 · primary ns1.sri.ucl.ac.be

Found

Primary (MNAME): ns1.sri.ucl.ac.be
Contact (RNAME): adminet.uclouvain.be
Serial: 2026106580
Refresh / retry: 7200 s / 900 s
Expire: 864000 s
Negative TTL: 10800 s

Serial per nameserver

Nameserver	Serial
ns1.belnet.be (193.190.198.14)	2026106580
ns1.belnet.be (2001:6a8:3c80::14)	2026106580
ns1.sri.ucl.ac.be (130.104.1.1)	2026106580
ns1.sri.ucl.ac.be (2001:6a8:3081:1::53)	2026106580
ns2.belnet.be (193.190.182.40)	2026106580
ns2.belnet.be (2001:6a8:3c80:c000::40)	2026106580
ns2.sri.ucl.ac.be (130.104.1.2)	2026106580
ns2.sri.ucl.ac.be (2001:6a8:3081:2::53)	2026106580
ns3.belnet.be (194.58.196.32)	2026106580
ns3.belnet.be (2a01:3f1:832::53)	2026106580
ns3.sri.ucl.ac.be (130.104.254.1)	2026106580
ns3.sri.ucl.ac.be (2001:6a8:3082:1::53)	2026106580

Checks

✓ Serial 2026106580 everywhere #22

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

SOA refresh 2h, retry 15m, expire 10d, negative TTL 3h.
✓ Primary is a public nameserver #24

The primary nameserver ns1.sri.ucl.ac.be is one of the listed nameservers.
✓ Contact adminet@uclouvain.be #25

The SOA RNAME adminet.uclouvain.be means adminet@uclouvain.be.
✓ Timestamp serial #26

The serial 2026106580 is a Unix timestamp (2034-03-16 07:23 UTC).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC3
NSEC3: 64 iterations, 8-byte salt
Signatures valid until: 1 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
19174	RSASHA256 (8)	SHA256 5061046DCF2636A7…	yes
19174	RSASHA256 (8)	SHA1 A478239A71F2B286…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
23505	ZSK (256)	RSASHA256 (8)
19174	KSK (257)	RSASHA256 (8)

Checks

✓ Signed and validated #27

The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
✓ DS matches a key #28

The DS record at the parent matches a key in the zone: key tag 19174 (SHA256), key tag 19174 (SHA1).
✓ Modern algorithms #29

Key algorithms: RSASHA256 (8).
✓ Signatures valid until 2026-11-01 #30

The earliest DNSKEY/SOA signature expires at 2026-11-01 16:01 UTC.
!

NSEC3 with extra iterations or salt

NSEC3 uses 64 iterations and a 8-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.

#31

Records

pass

14 records at the apex

Found

Read from: 193.190.198.14:53

Type	Value	TTL
SOA	ns1.sri.ucl.ac.be. adminet.uclouvain.be. 2026106580 7200 900 864000 10800	10800
NS	ns1.sri.ucl.ac.be.	604800
NS	ns3.sri.ucl.ac.be.	604800
NS	ns2.sri.ucl.ac.be.	604800
NS	ns2.belnet.be.	604800
NS	ns1.belnet.be.	604800
NS	ns3.belnet.be.	604800
MX	10 ucl-ac-be.mail.protection.outlook.com.	3600
TXT	"HARICA-yLCXPyKIfrbUNneK8qw"	86400
TXT	"v=spf1 ip4:130.104.0.0/16 mx include:sharepointonline.com include:spf.protection.outlook.com -all"	86400
TXT	"MS=ms61925328"	86400
TXT	"spycloud-domain-verification=39d09caf-cf4e-43e9-92d3-3fd2038b3fc3"	86400
CAA	0 iodef "mailto:abuse@uclouvain.be"	86400
CAA	0 issue "harica.gr"	86400

Checks

✓ TTLs within range #32

TTLs: MX 1h, NS 7d.
✓ No CNAME at the apex #33

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

Names that don't exist return NXDOMAIN.
✓ CAA restricts issuance #35

Certificates may be issued by: harica.gr.