malteser.de

Checked 21 October 2026, 23:21 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

info

dns01.pironet-ndh.com, dns02.pironet-ndh.com, dns03.pironet-ndh.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
dns01.pironet-ndh.com, dns02.pironet-ndh.com, dns03.pironet-ndh.com
NS in the zone
dns01.pironet-ndh.com, dns02.pironet-ndh.com, dns03.pironet-ndh.com
NameserverAddressesNetwork (AS)Glue
dns01.pironet-ndh.com195.94.88.254 2001:1440:0:4027::4AS8469 PIRONETNDH-AS - CANCOM Managed Services GmbH, DE AS8469 PIRONETNDH-AS - CANCOM Managed Services GmbH, DE-
dns02.pironet-ndh.com62.40.0.3 2001:1440:0:4021::4AS8469 PIRONETNDH-AS - CANCOM Managed Services GmbH, DE AS8469 PIRONETNDH-AS - CANCOM Managed Services GmbH, DE-
dns03.pironet-ndh.com195.94.90.10 2001:1440:0:4005::4AS8469 PIRONETNDH-AS - CANCOM Managed Services GmbH, DE AS8469 PIRONETNDH-AS - CANCOM Managed Services GmbH, DE-

Checks

  • ✓ 3 nameservers #6
    Delegated to dns01.pironet-ndh.com, dns02.pironet-ndh.com, dns03.pironet-ndh.com.
  • ✓ 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 2001:1440::/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 (AS8469 (PIRONETNDH-AS - CANCOM Managed Services GmbH, DE): 6 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 .com
    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

pass

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns01.pironet-ndh.com 195.94.88.254NOERROR, 11 ms, authoritativenoyes / yesrefused-
dns01.pironet-ndh.com 2001:1440:0:4027::4NOERROR, 12 ms, authoritativenoyes / yesrefused-
dns02.pironet-ndh.com 62.40.0.3NOERROR, 11 ms, authoritativenoyes / yesrefused-
dns02.pironet-ndh.com 2001:1440:0:4021::4NOERROR, 12 ms, authoritativenoyes / yesrefused-
dns03.pironet-ndh.com 195.94.90.10NOERROR, 12 ms, authoritativenoyes / yesrefused-
dns03.pironet-ndh.com 2001:1440:0:4005::4NOERROR, 12 ms, authoritativenoyes / yesrefused-

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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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

warn

serial 2026101600 · primary dns01.pironet-ndh.com

Found

Primary (MNAME)
dns01.pironet-ndh.com
Contact (RNAME)
hostmaster.pironet-ndh.com
Serial
2026101600
Refresh / retry
21600 s / 7200 s
Expire
2592000 s
Negative TTL
172800 s

Serial per nameserver

NameserverSerial
dns01.pironet-ndh.com (195.94.88.254)2026101600
dns01.pironet-ndh.com (2001:1440:0:4027::4)2026101600
dns02.pironet-ndh.com (62.40.0.3)2026101600
dns02.pironet-ndh.com (2001:1440:0:4021::4)2026101600
dns03.pironet-ndh.com (195.94.90.10)2026101600
dns03.pironet-ndh.com (2001:1440:0:4005::4)2026101600

Checks

  • ✓ Serial 2026101600 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 2d is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 6h, retry 2h, expire 30d, negative TTL 2d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns01.pironet-ndh.com is one of the listed nameservers.
  • ✓ Contact hostmaster@pironet-ndh.com #25
    The SOA RNAME hostmaster.pironet-ndh.com means hostmaster@pironet-ndh.com.
  • ✓ Date-based serial #26
    The serial 2026101600 follows the YYYYMMDDnn convention (2026-10-16).

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
195.94.88.254:53
TypeValueTTL
SOAdns01.pironet-ndh.com. hostmaster.pironet-ndh.com. 2026101600 21600 7200 2592000 1728003600
NSdns03.pironet-ndh.com.900
NSdns01.pironet-ndh.com.900
NSdns02.pironet-ndh.com.900
A213.202.246.10900
AAAA2001:4ba0:92c1:e5::10900
MX1 malteser-de.mail.protection.outlook.com.3600
TXT"QYU5ciIHgmkd6iCNGu6RR/LNwRlYwYlh0PfDYroWVtDl1NjsPV0n8Z6rjp/CbI29c8kFjlbEniUd65SFMuDSvA=="900
TXT"linkedin-site-verification=bf0ad6cc-d896-4006-bacf-1871e61a01e3"900
TXT"brevo-code:b53524243a874d0aaefc82268d2a440d"900
TXT"google-site-verification=sAdFIzxQ4KxU7JR2rI0y9NU2dfZF4MLkj3qmI-yqiOs"900
TXT"MS=ms64541693"900
TXT"ZOOM_verify_r4OKZZXvThCwjO36w7-3QQ"900
TXT"sendinblue-site-verification=8822551"900

Checks

  • ✓ TTLs within range #32
    TTLs: A 15m, AAAA 15m, MX 1h, NS 15m. The NS TTL at the parent is 1d and in the zone 15m; 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