sara.be

Checked 22 October 2026, 07:10 UTC · via 8.8.8.8
✗Problems found
23 passed 3 warnings 2 failed 5 info

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

dns1.stabletransit.com, dns2.stabletransit.com, ns1.openprovider.nl, ns1.stabletransit.com, ns2.openprovider.be, ns2.stabletransit.com, ns3.openprovider.eu

Found

Parent zone
be
Delegation from
a.nsset.be (194.0.6.1)
NS at the parent
dns1.stabletransit.com, dns2.stabletransit.com, ns1.openprovider.nl, ns1.stabletransit.com, ns2.openprovider.be, ns2.stabletransit.com, ns3.openprovider.eu
NS in the zone
ns1.openprovider.nl, ns2.openprovider.be, ns3.openprovider.eu
NameserverAddressesNetwork (AS)Glue
dns1.stabletransit.com (parent only)69.20.95.4AS27357 RACKSPACE - Rackspace Hosting, US-
dns2.stabletransit.com (parent only)65.61.188.4AS15395 RACKSPACE-LON - Rackspace Ltd., GB-
ns1.openprovider.nl162.159.26.10 2400:cb00:2049:1::a29f:1a0aAS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US-
ns1.stabletransit.com (parent only)69.20.95.4AS27357 RACKSPACE - Rackspace Hosting, US-
ns2.openprovider.be162.159.27.96 2400:cb00:2049:1::a29f:1b60AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US-
ns2.stabletransit.com (parent only)65.61.188.4AS15395 RACKSPACE-LON - Rackspace Ltd., GB-
ns3.openprovider.eu162.159.48.89 2400:cb00:2049:1::a29f:3059AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US-

Checks

  • ✓ 7 nameservers #6
    Delegated to dns1.stabletransit.com, dns2.stabletransit.com, ns1.openprovider.nl, ns1.stabletransit.com, ns2.openprovider.be, ns2.stabletransit.com, ns3.openprovider.eu.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: dns1.stabletransit.com, dns2.stabletransit.com, ns1.stabletransit.com, ns2.stabletransit.com. ns1.openprovider.nl, ns2.openprovider.be, ns3.openprovider.eu report NS ns1.openprovider.nl ns2.openprovider.be ns3.openprovider.eu.
    #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 2400:cb00:2049::/48, while the other address family is spread over several networks.
    #10
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 6 addresses; AS15395 (RACKSPACE-LON - Rackspace Ltd., GB): 2 addresses; AS27357 (RACKSPACE - Rackspace Hosting, US): 2 addresses.
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .be, .com, .eu, .nl.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: dns1.stabletransit.com, dns2.stabletransit.com, ns1.stabletransit.com, ns2.stabletransit.com.
    #13

Nameservers

fail

6 of 10 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.stabletransit.com 69.20.95.4REFUSED, 87 ms, NOT authoritativenono / yesrefused-
dns2.stabletransit.com 65.61.188.4REFUSED, 15 ms, NOT authoritativenono / yesrefused-
ns1.openprovider.nl 162.159.26.10NOERROR, 24 ms, authoritativenoyes / yesrefused2026.10.8
ns1.openprovider.nl 2400:cb00:2049:1::a29f:1a0aNOERROR, 26 ms, authoritativenoyes / yesrefused2026.10.8
ns1.stabletransit.com 69.20.95.4REFUSED, 87 ms, NOT authoritativenono / yesrefused-
ns2.openprovider.be 162.159.27.96NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.8
ns2.openprovider.be 2400:cb00:2049:1::a29f:1b60NOERROR, 25 ms, authoritativenoyes / yesrefused2026.10.8
ns2.stabletransit.com 65.61.188.4REFUSED, 15 ms, NOT authoritativenono / yesrefused-
ns3.openprovider.eu 162.159.48.89NOERROR, 24 ms, authoritativenoyes / yesrefused2026.10.8
ns3.openprovider.eu 2400:cb00:2049:1::a29f:3059NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.8

Checks

  • ✓ All respond #14
    All 10 nameserver addresses answered.
  • ✗
    Lame delegation
    These nameservers don't answer authoritatively for the zone, so resolvers ignore them: dns1.stabletransit.com (69.20.95.4): REFUSED, authoritative=false; dns2.stabletransit.com (65.61.188.4): REFUSED, authoritative=false; ns1.stabletransit.com (69.20.95.4): REFUSED, authoritative=false; ns2.stabletransit.com (65.61.188.4): REFUSED, authoritative=false.
    #15
  • ✓ 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: ns1.openprovider.nl: "2026.10.8"; ns2.openprovider.be: "2026.10.8"; ns3.openprovider.eu: "2026.10.8". Hide or replace the version string.
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✗
    No DNS over TCP
    DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: dns1.stabletransit.com (69.20.95.4): ; dns2.stabletransit.com (65.61.188.4): ; ns1.stabletransit.com (69.20.95.4): ; ns2.stabletransit.com (65.61.188.4): .
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2025111201 · primary ns1.openprovider.nl

Found

Primary (MNAME)
ns1.openprovider.nl
Contact (RNAME)
dns.openprovider.eu
Serial
2025111201
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.openprovider.nl (162.159.26.10)2025111201
ns1.openprovider.nl (2400:cb00:2049:1::a29f:1a0a)2025111201
ns2.openprovider.be (162.159.27.96)2025111201
ns2.openprovider.be (2400:cb00:2049:1::a29f:1b60)2025111201
ns3.openprovider.eu (162.159.48.89)2025111201
ns3.openprovider.eu (2400:cb00:2049:1::a29f:3059)2025111201

Checks

  • ✓ Serial 2025111201 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.openprovider.nl is one of the listed nameservers.
  • ✓ Contact dns@openprovider.eu #25
    The SOA RNAME dns.openprovider.eu means dns@openprovider.eu.
  • ✓ Date-based serial #26
    The serial 2025111201 follows the YYYYMMDDnn convention (2025-11-12).

DNSSEC

warn

Signed, DS published at parent

Found

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

DS at the parent

Key tagAlgorithmDigestMatches a key
42334RSASHA256 (8)SHA256 08E226A797BCFBAA…yes

DNSKEY in the zone

Key tagRoleAlgorithm
42334KSK (257)RSASHA256 (8)
48534ZSK (256)RSASHA256 (8)
50016ZSK (256)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 42334 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: RSASHA256 (8).
  • ✓ 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 1 iteration and a 1-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

9 records at the apex

Found

Read from
162.159.26.10:53
TypeValueTTL
SOAns1.openprovider.nl. dns.openprovider.eu. 2025111201 10800 3600 604800 360086400
NSns1.openprovider.nl.3600
NSns2.openprovider.be.3600
NSns3.openprovider.eu.3600
A65.109.114.19900
MX5 mail.op-email.eu.86400
TXT"google-site-verification=malDInPLf4V2dPcc4o4WBQOxuhk2i61E3zPXDhrTTEQ"900
TXT"peneterrer-verify=27fa0be5-5d57-4302-8043-5a92b4320255"900
TXT"google-site-verification=cUedLXgHWTr_raWt9OWnCUYNSy2EjcN_Mm7s2f4ilHo"900

Checks

  • ✓ TTLs within range #32
    TTLs: A 15m, MX 1d, 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.
  • i
    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