saarland.de

Checked 22 October 2026, 00:01 UTC · via 8.8.8.8
!Passed with warnings
21 passed 2 warnings 0 failed 6 info

Registration

info

.de country-code

Found

TLD
.de (country-code)
ICANN policies apply
no

Checks

  • i
    .de 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
    .de is delegated in the root zone and DNSSEC-signed.
  • i
    Registration data not available
    No registration data via RDAP: the registry of .de offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.
    #3

Delegation

warn

ns1.teresto.net, ns2.teresto.net, ns3.teresto.net, ns4.teresto.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.teresto.net, ns2.teresto.net, ns3.teresto.net, ns4.teresto.net
NS in the zone
ns1.artelis.net, ns2.artelis.net, ns3.artelis.net, ns4.artelis.net
NameserverAddressesNetwork (AS)Glue
ns1.artelis.net (zone only)212.88.128.10 2a02:5a0:1fff:ffff::10AS9063 SAARGATE-AS - VSE NET GmbH, DE AS9063 SAARGATE-AS - VSE NET GmbH, DE-
ns1.teresto.net (parent only)212.88.128.10 2a02:5a0:1fff:ffff::10AS9063 SAARGATE-AS - VSE NET GmbH, DE AS9063 SAARGATE-AS - VSE NET GmbH, DE-
ns2.artelis.net (zone only)217.31.66.232 2a02:3a8:100::100AS15965 AS15965 - CEGECOM S.A., LU AS15965 AS15965 - CEGECOM S.A., LU-
ns2.teresto.net (parent only)217.31.66.232 2a02:3a8:100::100AS15965 AS15965 - CEGECOM S.A., LU AS15965 AS15965 - CEGECOM S.A., LU-
ns3.artelis.net (zone only)217.31.71.30 2a02:3a8:200::200AS15965 AS15965 - CEGECOM S.A., LU AS15965 AS15965 - CEGECOM S.A., LU-
ns3.teresto.net (parent only)217.31.71.30 2a02:3a8:200::200AS15965 AS15965 - CEGECOM S.A., LU AS15965 AS15965 - CEGECOM S.A., LU-
ns4.artelis.net (zone only)212.88.128.70AS9063 SAARGATE-AS - VSE NET GmbH, DE-
ns4.teresto.net (parent only)212.88.128.70AS9063 SAARGATE-AS - VSE NET GmbH, DE-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.teresto.net, ns2.teresto.net, ns3.teresto.net, ns4.teresto.net.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: ns1.teresto.net, ns2.teresto.net, ns3.teresto.net, ns4.teresto.net; only in the zone: ns1.artelis.net, ns2.artelis.net, ns3.artelis.net, ns4.artelis.net. ns1.artelis.net, ns1.teresto.net, ns2.artelis.net, ns2.teresto.net, ns3.artelis.net, ns3.teresto.net, ns4.artelis.net, ns4.teresto.net report NS ns1.artelis.net ns2.artelis.net ns3.artelis.net ns4.artelis.net.
    #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: AS15965 (AS15965 - CEGECOM S.A., LU): 8 addresses; AS9063 (SAARGATE-AS - VSE NET GmbH, DE): 6 addresses.
  • i
    All nameserver names under .net
    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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns4.artelis.net, ns4.teresto.net.
    #13

Nameservers

info

14 of 14 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.artelis.net 212.88.128.10NOERROR, 7 ms, authoritativenoyes / yesrefusednot-supported
ns1.artelis.net 2a02:5a0:1fff:ffff::10NOERROR, 8 ms, authoritativenoyes / yesrefusednot-supported
ns1.teresto.net 212.88.128.10NOERROR, 7 ms, authoritativenoyes / yesrefusednot-supported
ns1.teresto.net 2a02:5a0:1fff:ffff::10NOERROR, 7 ms, authoritativenoyes / yesrefusednot-supported
ns2.artelis.net 217.31.66.232NOERROR, 11 ms, authoritativenoyes / yesrefusednot-supported
ns2.artelis.net 2a02:3a8:100::100NOERROR, 14 ms, authoritativenoyes / yesrefusednot-supported
ns2.teresto.net 217.31.66.232NOERROR, 10 ms, authoritativenoyes / yesrefusednot-supported
ns2.teresto.net 2a02:3a8:100::100NOERROR, 14 ms, authoritativenoyes / yesrefusednot-supported
ns3.artelis.net 217.31.71.30NOERROR, 10 ms, authoritativenoyes / yesrefusednot-supported
ns3.artelis.net 2a02:3a8:200::200NOERROR, 14 ms, authoritativenoyes / yesrefusednot-supported
ns3.teresto.net 217.31.71.30NOERROR, 11 ms, authoritativenoyes / yesrefusednot-supported
ns3.teresto.net 2a02:3a8:200::200NOERROR, 14 ms, authoritativenoyes / yesrefusednot-supported
ns4.artelis.net 212.88.128.70NOERROR, 7 ms, authoritativenoyes / yesrefusednot-supported
ns4.teresto.net 212.88.128.70NOERROR, 7 ms, authoritativenoyes / yesrefusednot-supported

Checks

  • ✓ All respond #14
    All 14 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.artelis.net: "not-supported"; ns1.teresto.net: "not-supported"; ns2.artelis.net: "not-supported"; ns2.teresto.net: "not-supported"; ns3.artelis.net: "not-supported"; ns3.teresto.net: "not-supported"; ns4.artelis.net: "not-supported"; ns4.teresto.net: "not-supported".
    #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 2008071139 · primary ns1.teresto.net

Found

Primary (MNAME)
ns1.teresto.net
Contact (RNAME)
admin.saarland.de
Serial
2008071139
Refresh / retry
7200 s / 3600 s
Expire
604800 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
ns1.artelis.net (212.88.128.10)2008071139
ns1.artelis.net (2a02:5a0:1fff:ffff::10)2008071139
ns1.teresto.net (212.88.128.10)2008071139
ns1.teresto.net (2a02:5a0:1fff:ffff::10)2008071139
ns2.artelis.net (217.31.66.232)2008071139
ns2.artelis.net (2a02:3a8:100::100)2008071139
ns2.teresto.net (217.31.66.232)2008071139
ns2.teresto.net (2a02:3a8:100::100)2008071139
ns3.artelis.net (217.31.71.30)2008071139
ns3.artelis.net (2a02:3a8:200::200)2008071139
ns3.teresto.net (217.31.71.30)2008071139
ns3.teresto.net (2a02:3a8:200::200)2008071139
ns4.artelis.net (212.88.128.70)2008071139
ns4.teresto.net (212.88.128.70)2008071139

Checks

  • ✓ Serial 2008071139 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 1h, expire 7d, negative TTL 10m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.teresto.net is one of the listed nameservers.
  • ✓ Contact admin@saarland.de #25
    The SOA RNAME admin.saarland.de means admin@saarland.de.
  • ✓ Date-based serial #26
    The serial 2008071139 follows the YYYYMMDDnn convention (2008-07-11).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

14 records at the apex

Found

Read from
212.88.128.10:53
TypeValueTTL
SOAns1.teresto.net. admin.saarland.de. 2008071139 7200 3600 604800 600600
NSns4.artelis.net.600
NSns3.artelis.net.600
NSns2.artelis.net.600
NSns1.artelis.net.600
A213.95.204.221600
MX20 lmtad11.saarland.de.600
MX10 lmtad12.saarland.de.600
TXT"a3d3eda8fa4393db07cb55ffc346db4e6e67514df541946c70c1de7af625372"600
TXT"8b4b16950e23618ef6323dbb16b8efb31ae50d7a924540a693f81a5d0469ff6"600
TXT"v=spf1 mx ip4:212.88.146.19 ip4:212.88.147.19 ip4:212.88.146.71 ip4:212.88.147.71 -all"600
TXT"aeedf0427f87c8c2a8ea233ea2b74fb555b4d137f7395234a8bdbe97f3de4ff"600
TXT"def44e6a9d4c16c59f10edde2f596a0101810c73822333f77d8f9ed66c2b0bd"600
TXT"_xa2but0o50em6cbk2d8psrh2k1b4ky4"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, MX 10m, NS 10m. The NS TTL at the parent is 1d and in the zone 10m; 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