Domain report: antwerp-airport.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

warn

ns3.european-server.com, ns4.european-server.com

Found

Parent zone: be
Delegation from: a.nsset.be (194.0.6.1)
NS at the parent: ns3.european-server.com, ns4.european-server.com
NS in the zone: ns1.european-server.eu, ns3.european-server.com, ns4.european-server.com

Nameserver	Addresses	Network (AS)	Glue
ns1.european-server.eu (zone only)	89.44.166.48 2a00:1c98:50::50	AS34762 COMBELL-AS - Combell NV, BE AS34762 COMBELL-AS - Combell NV, BE	-
ns3.european-server.com	83.217.73.172 2a00:1c98::53:1	AS34762 COMBELL-AS - Combell NV, BE AS34762 COMBELL-AS - Combell NV, BE	-
ns4.european-server.com	86.39.202.67 2001:1598:0:101::3	AS28747 EASYHOST-COLO-AS - Easyhost BVBA, BE AS28747 EASYHOST-COLO-AS - Easyhost BVBA, BE	-

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns3.european-server.com, ns4.european-server.com.

#6
!

NS sets differ

The nameservers at the parent and in the zone should be the same. Only in the zone: ns1.european-server.eu. ns1.european-server.eu, ns3.european-server.com, ns4.european-server.com report NS ns1.european-server.eu ns3.european-server.com ns4.european-server.com.

#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.
✓ Nameservers in different networks #10

The nameservers are spread over 3 IPv4 /24s and 3 IPv6 /48s.
✓ 2 autonomous systems #11

The nameservers are spread over: AS28747 (EASYHOST-COLO-AS - Easyhost BVBA, BE): 2 addresses; AS34762 (COMBELL-AS - Combell NV, BE): 4 addresses.
i

All nameserver names under .com

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

6 of 6 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.european-server.eu 89.44.166.48	NOERROR, 10 ms, authoritative	no	yes / yes	refused	You are on a need to know basis
ns1.european-server.eu 2a00:1c98:50::50	NOERROR, 10 ms, authoritative	no	yes / yes	refused	You are on a need to know basis
ns3.european-server.com 83.217.73.172	NOERROR, 13 ms, authoritative	no	yes / yes	refused	You are on a need to know basis
ns3.european-server.com 2a00:1c98::53:1	NOERROR, 14 ms, authoritative	no	yes / yes	refused	You are on a need to know basis
ns4.european-server.com 86.39.202.67	NOERROR, 13 ms, authoritative	no	yes / yes	refused	You are on a need to know basis
ns4.european-server.com 2001:1598:0:101::3	NOERROR, 14 ms, authoritative	no	yes / yes	refused	You are on a need to know basis

Checks

✓ All respond #14

All 6 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.european-server.eu: "You are on a need to know basis"; ns3.european-server.com: "You are on a need to know basis"; ns4.european-server.com: "You are on a need to know basis".

#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 1669488863 · primary ns3.european-server.com

Found

Primary (MNAME): ns3.european-server.com
Contact (RNAME): hostmaster.antwerp-airport.be
Serial: 1669488863
Refresh / retry: 10800 s / 3600 s
Expire: 604800 s
Negative TTL: 40000 s

Serial per nameserver

Nameserver	Serial
ns1.european-server.eu (89.44.166.48)	1669488863
ns1.european-server.eu (2a00:1c98:50::50)	1669488863
ns3.european-server.com (83.217.73.172)	1669488863
ns3.european-server.com (2a00:1c98::53:1)	1669488863
ns4.european-server.com (86.39.202.67)	1669488863
ns4.european-server.com (2001:1598:0:101::3)	1669488863

Checks

✓ Serial 1669488863 everywhere #22

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

SOA refresh 3h, retry 1h, expire 7d, negative TTL 11h6m40s.
✓ Primary is a public nameserver #24

The primary nameserver ns3.european-server.com is one of the listed nameservers.
✓ Contact hostmaster@antwerp-airport.be #25

The SOA RNAME hostmaster.antwerp-airport.be means hostmaster@antwerp-airport.be.
✓ Timestamp serial #26

The serial 1669488863 is a Unix timestamp (2022-11-26 18:54 UTC).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC3
NSEC3: 5 iterations, 4-byte salt
Signatures valid until: 5 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
26358	ECDSAP256SHA256 (13)	SHA256 7F2D532FA44F8B5F…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
26358	KSK (257)	ECDSAP256SHA256 (13)

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 26358 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
✓ Signatures valid until 2026-11-05 #30

The earliest DNSKEY/SOA signature expires at 2026-11-05 00:00 UTC.
!

NSEC3 with extra iterations or salt

NSEC3 uses 5 iterations and a 4-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

info

8 records at the apex

Found

Read from: 89.44.166.48:53

Type	Value	TTL
SOA	ns3.european-server.com. hostmaster.antwerp-airport.be. 1669488863 10800 3600 604800 40000	3600
NS	ns1.european-server.eu.	3600
NS	ns3.european-server.com.	86400
NS	ns4.european-server.com.	86400
A	217.19.237.54	3600
MX	10 mx.mailprotect.be.	3600
MX	50 mx.backup.mailprotect.be.	3600
TXT	"MS=ms22139632"	3600

Checks

✓ TTLs within range #32

TTLs: A 1h, MX 1h, NS 1h. The NS TTL at the parent is 1d and in the zone 1h; 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