woonstadrotterdam.nl

Checked 22 October 2026, 17:20 UTC · via 8.8.8.8
iAll checks passed
28 passed 0 warnings 0 failed 5 info

Registration

info

.nl country-code

Found

TLD
.nl (country-code)
ICANN policies apply
no
Lookup error: https://rdap.sidn.nl/domain/woonstadrotterdam.nl returned HTTP 429

Checks

  • i
    .nl 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
    .nl is delegated in the root zone and DNSSEC-signed.
  • i
    Could not be checked
    The RDAP lookup failed, so this could not be checked: https://rdap.sidn.nl/domain/woonstadrotterdam.nl returned HTTP 429
    #3

Delegation

info

ns01.brandshelter.com, ns02.brandshelter.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns01.brandshelter.com, ns02.brandshelter.net
NS in the zone
ns01.brandshelter.com, ns02.brandshelter.net
NameserverAddressesNetwork (AS)Glue
ns01.brandshelter.com193.227.117.15 2a04:2b00:14cc::15AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
ns02.brandshelter.net194.50.187.16 2a04:2b00:14dd::16AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns01.brandshelter.com, ns02.brandshelter.net.
    #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 2 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .net.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns01.brandshelter.com 193.227.117.15NOERROR, 5 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns01.brandshelter.com 2a04:2b00:14cc::15NOERROR, 4 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns02.brandshelter.net 194.50.187.16NOERROR, 13 ms, authoritativenoyes / yesrefusedreg-wie1
ns02.brandshelter.net 2a04:2b00:14dd::16NOERROR, 13 ms, authoritativenoyes / yesrefusedreg-wie1

Checks

  • ✓ All respond #14
    All 4 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: ns01.brandshelter.com: "RcodeZero DNS"; ns02.brandshelter.net: "reg-wie1".
    #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 2026105164 · primary ns01.brandshelter.com

Found

Primary (MNAME)
ns01.brandshelter.com
Contact (RNAME)
tech.brandshelter.com
Serial
2026105164
Refresh / retry
10800 s / 3600 s
Expire
1209600 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns01.brandshelter.com (193.227.117.15)2026105164
ns01.brandshelter.com (2a04:2b00:14cc::15)2026105164
ns02.brandshelter.net (194.50.187.16)2026105164
ns02.brandshelter.net (2a04:2b00:14dd::16)2026105164

Checks

  • ✓ Serial 2026105164 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 14d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns01.brandshelter.com is one of the listed nameservers.
  • ✓ Contact tech@brandshelter.com #25
    The SOA RNAME tech.brandshelter.com means tech@brandshelter.com.
  • ✓ Timestamp serial #26
    The serial 2026105164 is a Unix timestamp (2034-03-16 06:59 UTC).

DNSSEC

pass

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 0-byte salt
Signatures valid until
5 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
16888ECDSAP256SHA256 (13)SHA256 9F81D877C4BF7B50…yes

DNSKEY in the zone

Key tagRoleAlgorithm
60752ZSK (256)ECDSAP256SHA256 (13)
16888KSK (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 16888 (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 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

pass

34 records at the apex

Found

Read from
193.227.117.15:53
TypeValueTTL
SOAns01.brandshelter.com. tech.brandshelter.com. 2026105164 10800 3600 1209600 300300
NSns01.brandshelter.com.3600
NSns02.brandshelter.net.3600
A185.123.52.1993600
AAAA2a10:ec6:1:3:185:123:52:1993600
MX0 woonstadrotterdam-nl.mail.protection.outlook.com.86400
TXT"MS=ms65859325"86400
TXT"apple-domain-verification=XbpI9JLDKnClbJTy"86400
TXT"KFDMDmiuZpBqW3W5dyJSmuTWcMy+Wy0GOlv7j0X1Tsk="86400
TXT"canva-site-verification=bEVRVXU5Np51wk5dAbN2Jg"86400
TXT"detectify-verification=ac0fadb07e1901fd7e3626c28937dedf"86400
TXT"miro-verification=924be88d6788f1ae82a774576ab527882901ef9e"86400
TXT"ms-domain-verification=081f8993-68ff-4189-a061-09e940d60c1c"86400
TXT"google-site-verification=9LfCwzmFN0HmJ7j-3xWJ6YtPfSQkJKHfokKBef1tdg4"86400
TXT"google-site-verification=f3TtebYYsa_4FZnTbKUUICqNDOAiTatWVGs_b1u1lnY"86400
TXT"globalsign-domain-verification=rrj0oTPIJ0GeGa6RoJcOrwPhrudTeSv58k_4D0HxjN"86400
TXT"globalsign-domain-verification=run3caw9qfH6vrfREcTYJuF1pJHsrKxZkfGCtY5F86"86400
TXT"atlassian-sending-domain-verification=9c913212-6d61-4820-845c-cdcd78df914f"86400
TXT"7QRlhTqOi/dsJtHEZdnf5QwVRvSc6L4QUwXsnDFQ+z5W5WQLissS9CQrPKinlTstZ/ul0QHh7Vzj7Qc2zq042Q=="86400
TXT"challenge.www.indienstbijwoonstadrotterdam.nl=6wmWtJA4CF_ceiYZyVNYkIUXRS7ljx7hSS_ppm6Fyss"86400
TXT"_acme-challenge.indienstbijwoonstadrotterdam.nl=SGSQrdDLbqxECXldIopbiH961Y0qmQjQvWPDClhOl9s"86400
TXT"atlassian-domain-verification=Aqozh79DZ1OtzSxdDgSPSzLJ0KMFDxIziv6gCMAWA863taiHl5TjGlhgxOnaI66i"86400
TXT"v=spf1 include:spf.protection.outlook.com include:virtualmail.webpower.eu include:_spf.twinq.nl ip4:212.204.202.195 ip4:195.28.22.97 ip4:212.204.202.194 ip4:217.21.255.193 ip4:192.254.126.161 ip4:217.21.255.195 ip4:217.21.255.214 ip4:87.233.193.40 ip4:213" ".109.77.155 ip4:213.109.77.131 ip4:213.109.77.135 ip4:46.31.48.0/21 include:spf.afas.online include:spf.topdesk.net include:sendgrid.net include:_spf.salesforce.com ~all"86400
CAA0 issue "digicert.com"86400
CAA0 issue "globalsign.com"86400
CAA0 issue "godaddy.com"86400
CAA0 issue "letsencrypt.org"86400
CAA0 issue "pki.goog; cansignhttpexchanges=yes"86400
CAA0 issue "sectigo.com"86400
CAA0 issue "ssl.com"86400
CAA0 issuewild "globalsign.com"86400
CAA0 issuewild "pki.goog; cansignhttpexchanges=yes"86400
CAA0 issuewild "sectigo.com"86400
CAA0 issuewild "ssl.com"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, AAAA 1h, MX 1d, NS 1h.
  • ✓ 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: digicert.com, globalsign.com, godaddy.com, letsencrypt.org, pki.goog, sectigo.com, ssl.com.