svr.nl

Checked 22 October 2026, 16:30 UTC · via 8.8.8.8
!Passed with warnings
28 passed 2 warnings 0 failed 3 info

Registration

info

.nl country-code

Found

TLD
.nl (country-code)
ICANN policies apply
no
Lookup error: https://rdap.sidn.nl/domain/svr.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/svr.nl returned HTTP 429
    #3

Delegation

pass

ns1.resellerdns.nl, ns2.resellerdns.eu, ns3.resellerdns.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.resellerdns.nl, ns2.resellerdns.eu, ns3.resellerdns.net
NS in the zone
ns1.resellerdns.nl, ns2.resellerdns.eu, ns3.resellerdns.net
NameserverAddressesNetwork (AS)Glue
ns1.resellerdns.nl185.40.97.97 2a04:8400:1:1::11AS207176 OPENFIBER - OPENFIBER B.V., NL AS207176 OPENFIBER - OPENFIBER B.V., NL185.40.97.97 2a04:8400:1:1::11
ns2.resellerdns.eu93.114.180.66 2a10:e300:26:64::66AS44854 ERITAP-AS - Arend Brouwer, NL AS44854 ERITAP-AS - Arend Brouwer, NL-
ns3.resellerdns.net185.182.193.153 2a00:7c80:0:6a::6aAS49981 WorldStream - WorldStream B.V., NL AS49981 WorldStream - WorldStream B.V., NL-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.resellerdns.nl, ns2.resellerdns.eu, ns3.resellerdns.net.
  • ✓ 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 3 IPv4 /24s and 3 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS207176 (OPENFIBER - OPENFIBER B.V., NL): 2 addresses; AS44854 (ERITAP-AS - Arend Brouwer, NL): 2 addresses; AS49981 (WorldStream - WorldStream B.V., NL): 2 addresses.
  • ✓ Nameserver names under 3 TLDs #12
    Nameserver names use the TLDs .eu, .net, .nl.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.resellerdns.nl 185.40.97.97NOERROR, 19 ms, authoritativenoyes / yesrefused9.20.26-1~deb13u1-Debian
ns1.resellerdns.nl 2a04:8400:1:1::11NOERROR, 19 ms, authoritativenoyes / yesrefused9.20.26-1~deb13u1-Debian
ns2.resellerdns.eu 93.114.180.66NOERROR, 12 ms, authoritativenoyes / yesrefused9.20.30-1~deb13u1-Debian
ns2.resellerdns.eu 2a10:e300:26:64::66NOERROR, 9 ms, authoritativenoyes / yesrefused9.20.30-1~deb13u1-Debian
ns3.resellerdns.net 185.182.193.153NOERROR, 12 ms, authoritativenoyes / yesrefused9.20.30-1~deb13u1-Debian
ns3.resellerdns.net 2a00:7c80:0:6a::6aNOERROR, 12 ms, authoritativenoyes / yesrefused9.20.30-1~deb13u1-Debian

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.resellerdns.nl: "9.20.26-1~deb13u1-Debian"; ns2.resellerdns.eu: "9.20.30-1~deb13u1-Debian"; ns3.resellerdns.net: "9.20.30-1~deb13u1-Debian". 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 2026102101 · primary ns1.resellerdns.nl

Found

Primary (MNAME)
ns1.resellerdns.nl
Contact (RNAME)
postmaster.resellerdns.nl
Serial
2026102101
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.resellerdns.nl (185.40.97.97)2026102101
ns1.resellerdns.nl (2a04:8400:1:1::11)2026102101
ns2.resellerdns.eu (93.114.180.66)2026102101
ns2.resellerdns.eu (2a10:e300:26:64::66)2026102101
ns3.resellerdns.net (185.182.193.153)2026102101
ns3.resellerdns.net (2a00:7c80:0:6a::6a)2026102101

Checks

  • ✓ Serial 2026102101 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.resellerdns.nl is one of the listed nameservers.
  • ✓ Contact postmaster@resellerdns.nl #25
    The SOA RNAME postmaster.resellerdns.nl means postmaster@resellerdns.nl.
  • ✓ Date-based serial #26
    The serial 2026102101 follows the YYYYMMDDnn convention (2026-10-21).

DNSSEC

warn

Signed, DS published at parent

Found

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

DS at the parent

Key tagAlgorithmDigestMatches a key
46420ECDSAP256SHA256 (13)SHA256 B8ED87580D4CDB7D…yes

DNSKEY in the zone

Key tagRoleAlgorithm
46420KSK (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 46420 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • !
    Signatures expire soon
    The earliest signature expires at 2026-10-28 12:00 UTC (in 139h0m0s). Check that automatic re-signing works.
    #30
  • i
    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

12 records at the apex

Found

Read from
185.40.97.97:53
TypeValueTTL
SOAns1.resellerdns.nl. postmaster.resellerdns.nl. 2026102101 28800 7200 604800 864003600
NSns1.resellerdns.nl.3600
NSns3.resellerdns.net.3600
NSns2.resellerdns.eu.3600
A171.22.67.54300
MX10 antispam.mailplatform.eu.3600
MX20 antispam-alt.mailplatform.eu.3600
TXT"facebook-domain-verification=7yi03ctsh288zrtnl258v7tvq9hlne"3600
TXT"v=spf1 include:spf.mailplatform.eu include:spf.mandrillapp.com include:spf.e.sndro.com -all"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issue "digicert.com"3600
CAA0 issue "sectigo.com"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 1h, 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: letsencrypt.org, digicert.com, sectigo.com.