nol-is.de

Checked 21 October 2026, 23:40 UTC · via 8.8.8.8
iAll checks passed
30 passed 0 warnings 0 failed 3 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

pass

ns01.nol-is.de, ns02.nol-is.de, ns03.nol-is.de, ns04.nol-is.com, ns05.nol-is.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns01.nol-is.de, ns02.nol-is.de, ns03.nol-is.de, ns04.nol-is.com, ns05.nol-is.com
NS in the zone
ns01.nol-is.de, ns02.nol-is.de, ns03.nol-is.de, ns04.nol-is.com, ns05.nol-is.com
NameserverAddressesNetwork (AS)Glue
ns01.nol-is.de80.82.223.190 2001:4ba0:92e0:190::1AS24961 MYLOC-AS - WIIT AG, DE AS24961 MYLOC-AS - WIIT AG, DE80.82.223.190 2001:4ba0:92e0:190::1
ns02.nol-is.de85.114.145.166 2001:4ba0:92e0:5166::1AS24961 MYLOC-AS - WIIT AG, DE AS24961 MYLOC-AS - WIIT AG, DE85.114.145.166 2001:4ba0:92e0:5166::1
ns03.nol-is.de62.67.46.162 2a07:aa00:0:12:162::1AS3356 LEVEL3 - Level 3 Parent, LLC, US AS3549 LVLT-3549 - Level 3 Parent, LLC, US62.67.46.162 2a07:aa00:0:12:162::1
ns04.nol-is.com78.46.60.22 2a01:4f8:201:4119::1AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
ns05.nol-is.com83.246.82.203 2a02:790:3:503::1AS24679 SSERV-AS - kyberio GmbH, DE AS24679 SSERV-AS - kyberio GmbH, DE-

Checks

  • ✓ 5 nameservers #6
    Delegated to ns01.nol-is.de, ns02.nol-is.de, ns03.nol-is.de, ns04.nol-is.com, ns05.nol-is.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns01.nol-is.de, ns02.nol-is.de, ns03.nol-is.de.
  • ✓ 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 5 IPv4 /24s and 4 IPv6 /48s.
  • ✓ 5 autonomous systems #11
    The nameservers are spread over: AS24679 (SSERV-AS - kyberio GmbH, DE): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 2 addresses; AS24961 (MYLOC-AS - WIIT AG, DE): 4 addresses; AS3356 (LEVEL3 - Level 3 Parent, LLC, US): 1 address; AS3549 (LVLT-3549 - Level 3 Parent, LLC, US): 1 address.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .de.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

10 of 10 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns01.nol-is.de 80.82.223.190NOERROR, 10 ms, authoritativenoyes / yesrefusedHi!
ns01.nol-is.de 2001:4ba0:92e0:190::1NOERROR, 10 ms, authoritativenoyes / yesrefusedHi!
ns02.nol-is.de 85.114.145.166NOERROR, 8 ms, authoritativenoyes / yesrefusedHi!
ns02.nol-is.de 2001:4ba0:92e0:5166::1NOERROR, 7 ms, authoritativenoyes / yesrefusedHi!
ns03.nol-is.de 62.67.46.162NOERROR, 21 ms, authoritativenoyes / yesrefusedHi!
ns03.nol-is.de 2a07:aa00:0:12:162::1NOERROR, 10 ms, authoritativenoyes / yesrefusedHi!
ns04.nol-is.com 78.46.60.22NOERROR, 10 ms, authoritativenoyes / yesrefusedHi!
ns04.nol-is.com 2a01:4f8:201:4119::1NOERROR, 10 ms, authoritativenoyes / yesrefusedHi!
ns05.nol-is.com 83.246.82.203NOERROR, 12 ms, authoritativenoyes / yesrefusedHi!
ns05.nol-is.com 2a02:790:3:503::1NOERROR, 12 ms, authoritativenoyes / yesrefusedHi!

Checks

  • ✓ All respond #14
    All 10 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.nol-is.de: "Hi!"; ns02.nol-is.de: "Hi!"; ns03.nol-is.de: "Hi!"; ns04.nol-is.com: "Hi!"; ns05.nol-is.com: "Hi!".
    #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 1792618525 · primary ns01.nol-is.de

Found

Primary (MNAME)
ns01.nol-is.de
Contact (RNAME)
dns.nol-is.de
Serial
1792618525
Refresh / retry
14400 s / 3600 s
Expire
2419200 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns01.nol-is.de (80.82.223.190)1792618525
ns01.nol-is.de (2001:4ba0:92e0:190::1)1792618525
ns02.nol-is.de (85.114.145.166)1792618525
ns02.nol-is.de (2001:4ba0:92e0:5166::1)1792618525
ns03.nol-is.de (62.67.46.162)1792618525
ns03.nol-is.de (2a07:aa00:0:12:162::1)1792618525
ns04.nol-is.com (78.46.60.22)1792618525
ns04.nol-is.com (2a01:4f8:201:4119::1)1792618525
ns05.nol-is.com (83.246.82.203)1792618525
ns05.nol-is.com (2a02:790:3:503::1)1792618525

Checks

  • ✓ Serial 1792618525 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 28d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns01.nol-is.de is one of the listed nameservers.
  • ✓ Contact dns@nol-is.de #25
    The SOA RNAME dns.nol-is.de means dns@nol-is.de.
  • ✓ Timestamp serial #26
    The serial 1792618525 is a Unix timestamp (2026-10-21 21:35 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
4 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
34680ECDSAP256SHA256 (13)SHA256 C40E94DC3B523465…yes

DNSKEY in the zone

Key tagRoleAlgorithm
34680KSK (257)ECDSAP256SHA256 (13)
54448ZSK (256)ECDSAP256SHA256 (13)
58432ZSK (256)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 34680 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-11-04 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-04 13:19 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

pass

16 records at the apex

Found

Read from
80.82.223.190:53
TypeValueTTL
SOAns01.nol-is.de. dns.nol-is.de. 1792618525 14400 3600 2419200 360086400
NSns03.nol-is.de.86400
NSns05.nol-is.com.86400
NSns04.nol-is.com.86400
NSns02.nol-is.de.86400
NSns01.nol-is.de.86400
A85.114.145.15986400
AAAA2001:4ba0:92e0:5159::186400
MX10 mx01.nol-is.de.86400
MX20 mx00.nol-is.de.86400
TXT"v=spf1 include:_spf.nol-is.de ~all"86400
TXT"google-site-verification=NRvHbhyZrMAlBnaAnsaHfZJ4K77s3qWDzuTBjwpNBHk"86400
TXT"google-site-verification=12tq1ib8vgXxEl6GLXMTvy2RitxvJ3Opn2VsUzNP4cY"86400
CAA0 iodef "mailto:caa@nol-is.de"86400
CAA0 issue "letsencrypt.org"86400
CAA0 issuewild "letsencrypt.org"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, AAAA 1d, MX 1d, NS 1d.
  • ✓ 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.