lew.de

Checked 21 October 2026, 23:11 UTC · via 8.8.8.8
!Passed with warnings
20 passed 1 warning 0 failed 8 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

info

ns1.lewtelnet.de, ns2.lewtelnet.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.lewtelnet.de, ns2.lewtelnet.de
NS in the zone
ns1.lewtelnet.de, ns2.lewtelnet.de
NameserverAddressesNetwork (AS)Glue
ns1.lewtelnet.de212.118.192.5 2a02:f90:0:192::5AS12886 LEWTELNET - LEW TelNet GmbH, DE AS12886 LEWTELNET - LEW TelNet GmbH, DE212.118.192.5 2a02:f90:0:192::5
ns2.lewtelnet.de212.118.216.2 2a02:f90:0:216::2AS12886 LEWTELNET - LEW TelNet GmbH, DE AS12886 LEWTELNET - LEW TelNet GmbH, DE212.118.216.2 2a02:f90:0:216::2

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.lewtelnet.de, ns2.lewtelnet.de.
    #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.
  • i
    One address family in one network
    all IPv6 addresses are in 2a02:f90::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS12886 (LEWTELNET - LEW TelNet GmbH, DE): 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
  • i
    All nameserver names under .de
    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

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.lewtelnet.de 212.118.192.5NOERROR, 10 ms, authoritativenoyes / yesrefusednot currently available
ns1.lewtelnet.de 2a02:f90:0:192::5NOERROR, 10 ms, authoritativenoyes / yesrefusednot currently available
ns2.lewtelnet.de 212.118.216.2NOERROR, 9 ms, authoritativenoyes / yesrefusednot currently available
ns2.lewtelnet.de 2a02:f90:0:216::2NOERROR, 9 ms, authoritativenoyes / yesrefusednot currently available

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: ns1.lewtelnet.de: "not currently available"; ns2.lewtelnet.de: "not currently available".
    #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 2026102122 · primary ns1.lewtelnet.de

Found

Primary (MNAME)
ns1.lewtelnet.de
Contact (RNAME)
hostmaster.lewtelnet.de
Serial
2026102122
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.lewtelnet.de (212.118.192.5)2026102122
ns1.lewtelnet.de (2a02:f90:0:192::5)2026102122
ns2.lewtelnet.de (212.118.216.2)2026102122
ns2.lewtelnet.de (2a02:f90:0:216::2)2026102122

Checks

  • ✓ Serial 2026102122 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.lewtelnet.de is one of the listed nameservers.
  • ✓ Contact hostmaster@lewtelnet.de #25
    The SOA RNAME hostmaster.lewtelnet.de means hostmaster@lewtelnet.de.
  • ✓ Date-based serial #26
    The serial 2026102122 follows the YYYYMMDDnn convention (2026-10-21).

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

28 records at the apex

Found

Read from
212.118.192.5:53
TypeValueTTL
SOAns1.lewtelnet.de. hostmaster.lewtelnet.de. 2026102122 28800 7200 604800 8640086400
A131.189.23.0600
MX10 lew-de.mail.protection.outlook.com.600
TXT"_ofhadmzs9d6mose76foudhxfhwlbikw"3600
TXT"00D0N000000joSL=1TBTq00000002LT"3600
TXT"MS=ms60267827"3600
TXT"00D0E000000At50=1TB9K0000000NZJ"3600
TXT"google-site-verification=rUJZNhtagW5D7voyRsVoqZb-QvBXpDrP5CXOX9inGcc"3600
TXT"MS=ms94220415"3600
TXT"00D5E000000BZS1=1TB9Q0000000Rkz"3600
TXT"v=spf1 include:spf.lew.de include:spf.protection.outlook.com include:spf.mailjet.com include:_spf.qualtrics.com include:saleshand.cloud a:spf1006.agnitas.com inc" "lude:successfactors.com include:amazonses.com -all"3600
TXT"9LjFV+hdQkJPU7/Y3QVogg6Rg7V3oGb0r7Er7xt3NGiRiBwu7LjyRg/cw08jWxVPiWMdd94CAkbUEJr4YSsyUQ=="3600
TXT"00D26000000DZ90=1TB9M00000006Dg"3600
TXT"00D0D0000008h8z=1TB9O0000000Rg9"3600
TXT"_drabhv5bchq4r2vty28gots97kyad38"3600
TXT"D-TRUST=PC6S9LKFEPEZQD2MK9P4JP9"3600
TXT"docusign=4d00f270-17dd-4838-8210-1d48aaa123d5"3600
TXT"_k2ab3hykct0nlsv1lub5fludi0od0dq"3600
TXT"MS=ms36055014"3600
TXT"00D1q0000008b3v=1TB9Z0000000QLt"3600
TXT"00D3O0000006HKT=1TB9Q0000000Sif"3600
TXT"00D5E000000A9Am=1TB9Z0000000PhZ"3600
TXT"00D0E000000HWEV=1TB9K0000000O8n"3600
TXT"00DbY000009o5Dp=1TBbY0000000mhU"3600
TXT"ibmid=8033ae18-ae47-4011-a96d-0191ba64e8b2"3600
TXT"cloudflare_dashboard_sso=b203449ee139b068951a4fb699ccc2e7"3600
TXT"facebook-domain-verification=u9bwoyszm2ca62dzw0o3q9x8pcful5"3600
TXT"atlassian-domain-verification=khDfe2tNb4a3IlrXDB0Os7RNtf4vlHI9RTRXBXnvIOzJPt0/J5yOrlAbhy1mhUb3"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, MX 10m.
  • ✓ 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