Domain report: zimmo.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

info

gabe.ns.cloudflare.com, tricia.ns.cloudflare.com

Found

Parent zone: be
Delegation from: a.nsset.be (194.0.6.1)
NS at the parent: gabe.ns.cloudflare.com, tricia.ns.cloudflare.com
NS in the zone: gabe.ns.cloudflare.com, tricia.ns.cloudflare.com

Nameserver	Addresses	Network (AS)	Glue
gabe.ns.cloudflare.com	172.64.33.114 108.162.193.114 173.245.59.114 2803:f800:50::6ca2:c172 2a06:98c1:50::ac40:2172 2606:4700:58::adf5:3b72	AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US	-
tricia.ns.cloudflare.com	173.245.58.232 108.162.192.232 172.64.32.232 2606:4700:50::adf5:3ae8 2a06:98c1:50::ac40:20e8 2803:f800:50::6ca2:c0e8	AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US	-

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: gabe.ns.cloudflare.com, tricia.ns.cloudflare.com.

#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 6 IPv4 /24s and 4 IPv6 /48s.
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All nameservers in one AS

All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 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 .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

warn

12 of 12 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
gabe.ns.cloudflare.com 172.64.33.114	NOERROR, 14 ms, authoritative	no	yes / yes	refused	2026.10.2
gabe.ns.cloudflare.com 108.162.193.114	NOERROR, 14 ms, authoritative	no	yes / yes	refused	2026.10.2
gabe.ns.cloudflare.com 173.245.59.114	NOERROR, 14 ms, authoritative	no	yes / yes	refused	2026.10.2
gabe.ns.cloudflare.com 2803:f800:50::6ca2:c172	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
gabe.ns.cloudflare.com 2a06:98c1:50::ac40:2172	NOERROR, 16 ms, authoritative	no	yes / yes	refused	2026.10.2
gabe.ns.cloudflare.com 2606:4700:58::adf5:3b72	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
tricia.ns.cloudflare.com 173.245.58.232	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
tricia.ns.cloudflare.com 108.162.192.232	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
tricia.ns.cloudflare.com 172.64.32.232	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
tricia.ns.cloudflare.com 2606:4700:50::adf5:3ae8	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
tricia.ns.cloudflare.com 2a06:98c1:50::ac40:20e8	NOERROR, 16 ms, authoritative	no	yes / yes	refused	2026.10.2
tricia.ns.cloudflare.com 2803:f800:50::6ca2:c0e8	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2

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.
!

Software version disclosed

These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: gabe.ns.cloudflare.com: "2026.10.2"; tricia.ns.cloudflare.com: "2026.10.2". Hide or replace the version string.

#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 2418082721 · primary gabe.ns.cloudflare.com

Found

Primary (MNAME): gabe.ns.cloudflare.com
Contact (RNAME): dns.cloudflare.com
Serial: 2418082721
Refresh / retry: 10000 s / 2400 s
Expire: 604800 s
Negative TTL: 1800 s

Serial per nameserver

Nameserver	Serial
gabe.ns.cloudflare.com (172.64.33.114)	2418082721
gabe.ns.cloudflare.com (108.162.193.114)	2418082721
gabe.ns.cloudflare.com (173.245.59.114)	2418082721
gabe.ns.cloudflare.com (2803:f800:50::6ca2:c172)	2418082721
gabe.ns.cloudflare.com (2a06:98c1:50::ac40:2172)	2418082721
gabe.ns.cloudflare.com (2606:4700:58::adf5:3b72)	2418082721
tricia.ns.cloudflare.com (173.245.58.232)	2418082721
tricia.ns.cloudflare.com (108.162.192.232)	2418082721
tricia.ns.cloudflare.com (172.64.32.232)	2418082721
tricia.ns.cloudflare.com (2606:4700:50::adf5:3ae8)	2418082721
tricia.ns.cloudflare.com (2a06:98c1:50::ac40:20e8)	2418082721
tricia.ns.cloudflare.com (2803:f800:50::6ca2:c0e8)	2418082721

Checks

✓ Serial 2418082721 everywhere #22

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

SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
✓ Primary is a public nameserver #24

The primary nameserver gabe.ns.cloudflare.com is one of the listed nameservers.
✓ Contact dns@cloudflare.com #25

The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
✓ Timestamp serial #26

The serial 2418082721 is a Unix timestamp (2046-08-17 01:38 UTC).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC
Signatures valid until: 23 October 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
2371	ECDSAP256SHA256 (13)	SHA256 63CAA31DFEA4CE87…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
2371	KSK (257)	ECDSAP256SHA256 (13)
34505	ZSK (256)	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 2371 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
✓ Short-lived signatures (online signing) #30

Signatures are valid for 50h0m0s and created on demand; the current one was made at 2026-10-21 06:31 UTC and expires at 2026-10-23 08:31 UTC.
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NSEC

The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.

#31

Records

pass

28 records at the apex

Found

Read from: 172.64.33.114:53

Type	Value	TTL
SOA	gabe.ns.cloudflare.com. dns.cloudflare.com. 2418082721 10000 2400 604800 1800	1800
NS	gabe.ns.cloudflare.com.	86400
NS	tricia.ns.cloudflare.com.	86400
A	104.20.22.152	300
A	172.66.173.216	300
AAAA	2606:4700:10::ac42:add8	300
AAAA	2606:4700:10::6814:1698	300
MX	0 zimmo-be.mail.protection.outlook.com.	300
TXT	"1password-site-verification=XBFIN7GKBVDZHD43WVO23QREGM"	300
TXT	"atlassian-domain-verification=6pmXgwnFg97VcZymPBajXWMApgo0EvG3OatYXgfleuo44Klq2a2vMNG4zVa/9Tfm"	300
TXT	"google-site-verification=1LiwAlPpoT2CDXzKjXnPwDOrpZuLJEVIN-yZFypAu-0"	300
TXT	"google-site-verification=53JgKPKVJoWI0Srd98bbYNIlhqJ9IMa6Ot7TqjmrG8M"	300
TXT	"google-site-verification=6uKn6QCGuHzXQCCQzKEu1SbyUp3alwbigJJTHcZ75wg"	300
TXT	"linkedin-site-verification=f31d10b1-bb7c-4af0-b9de-453c17bcf006"	300
TXT	"v=spf1 include:spf.flexmail.eu ip4:93.94.111.0/24 ip4:178.23.41.0/24 ip4:31.24.113.0/24 include:spf.protection.outlook.com include:mail.zendesk.com include:eu.mailgun.org ip4:185.221.184.209 -all"	300
CAA	0 iodef "mailto:caa-violation-reports@zimmo.be"	300
CAA	0 issue "comodoca.com"	300
CAA	0 issue "digicert.com; cansignhttpexchanges=yes"	300
CAA	0 issue "letsencrypt.org"	300
CAA	0 issue "pki.goog; cansignhttpexchanges=yes"	300
CAA	0 issue "sectigo.com"	300
CAA	0 issue "ssl.com"	300
CAA	0 issuewild "comodoca.com"	300
CAA	0 issuewild "digicert.com; cansignhttpexchanges=yes"	300
CAA	0 issuewild "letsencrypt.org"	300
CAA	0 issuewild "pki.goog; cansignhttpexchanges=yes"	300
CAA	0 issuewild "sectigo.com"	300
CAA	0 issuewild "ssl.com"	300

Checks

✓ TTLs within range #32

TTLs: A 5m, AAAA 5m, MX 5m, NS 1d.
✓ 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: comodoca.com, digicert.com, letsencrypt.org, pki.goog, sectigo.com, ssl.com.