Domain report: ulg.ac.be

Registration

info

.be country-code

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

warn

ns1-edge.uliege.be, ns2-edge.uliege.be

Parent zone: ac.be
Delegation from: ns1.belnet.be (193.190.198.14)
NS at the parent: ns1-edge.uliege.be, ns2-edge.uliege.be
NS in the zone: ddi.uliege.be, ddi2.uliege.be, ns1-edge.uliege.be, ns2-edge.uliege.be

Nameserver	Addresses	Network (AS)	Glue
ddi.uliege.be (zone only)	139.165.214.214 2a04:b5c1::11	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	-
ddi2.uliege.be (zone only)	139.165.214.215 2a04:b5c1::13	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	-
ns1-edge.uliege.be	139.165.1.11 2a04:b5c1:0:200::11	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	-
ns2-edge.uliege.be	139.165.1.12 2a04:b5c1:0:200::12	AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE	-

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1-edge.uliege.be, ns2-edge.uliege.be.

#6
!

NS sets differ

The nameservers at the parent and in the zone should be the same. Only in the zone: ddi.uliege.be, ddi2.uliege.be. ns1-edge.uliege.be, ns2-edge.uliege.be report NS ddi.uliege.be ddi2.uliege.be ns1-edge.uliege.be ns2-edge.uliege.be.

#7
✓ 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.
i

One address family in one network

all IPv6 addresses are in 2a04:b5c1::/48, while the other address family is spread over several networks.

#10
i

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
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.

fail

4 of 8 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ddi.uliege.be 139.165.214.214	no response	no	no / no	-	-
ddi.uliege.be 2a04:b5c1::11	no response	no	no / no	-	-
ddi2.uliege.be 139.165.214.215	no response	no	no / no	-	-
ddi2.uliege.be 2a04:b5c1::13	no response	no	no / no	-	-
ns1-edge.uliege.be 139.165.1.11	NOERROR, 21 ms, authoritative	no	yes / yes	refused	-
ns1-edge.uliege.be 2a04:b5c1:0:200::11	NOERROR, 21 ms, authoritative	no	yes / yes	refused	-
ns2-edge.uliege.be 139.165.1.12	NOERROR, 20 ms, authoritative	no	yes / yes	refused	-
ns2-edge.uliege.be 2a04:b5c1:0:200::12	NOERROR, 20 ms, authoritative	no	yes / yes	refused	-

✗

Nameservers not responding

These addresses did not answer, so resolvers waste time on timeouts: ddi.uliege.be (139.165.214.214): read udp 46.225.38.91:50408->139.165.214.214:53: i/o timeout; ddi.uliege.be (2a04:b5c1::11): read udp [2a01:4f8:1c1c:eebf::1]:39770->[2a04:b5c1::11]:53: i/o timeout; ddi2.uliege.be (139.165.214.215): read udp 46.225.38.91:38473->139.165.214.215:53: i/o timeout; ddi2.uliege.be (2a04:b5c1::13): read udp [2a01:4f8:1c1c:eebf::1]:37345->[2a04:b5c1::13]:53: i/o timeout.

#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.
✓ 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 1505 · primary ddi.uliege.be

✓ Serial 1505 everywhere #22

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

SOA refresh 3h, retry 1h, expire 28d, negative TTL 15m.
✓ Primary is a public nameserver #24

The primary nameserver ddi.uliege.be is one of the listed nameservers.
✓ Contact helpnet@uliege.be #25

The SOA RNAME helpnet.uliege.be means helpnet@uliege.be.
✓ Counter serial #26

The serial 1505 is a plain counter.

warn

Not signed

warn

12 records at the apex

Type	Value	TTL
SOA	ddi.uliege.be. helpnet.uliege.be. 1505 10800 3600 2419200 900	3600
NS	ddi.uliege.be.	3600
NS	ddi2.uliege.be.	3600
NS	ns2-edge.uliege.be.	3600
NS	ns1-edge.uliege.be.	3600
A	139.165.240.47	120
AAAA	2a04:b5c1:0:1::16	120
MX	20 mx3.ulg.ac.be.	3600
TXT	"MS=1E7F6381888F476D870A047B7006051C385F9029"	3600
TXT	"v=spf1 ip4:139.165.32.0/24 mx ~all"	3600
TXT	"atlassian-domain-verification=USAXUfbsZC8egD0XLO9exhQdIMKeLHcTtIcMgOyZ9ShIXr1MlEyxGcin2qMbSS0V"	3600
TXT	"MS=ms98930425"	3600