mainova.de

Checked 21 October 2026, 23:21 UTC · via 8.8.8.8
!Passed with warnings
22 passed 2 warnings 0 failed 5 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

b.ns14.net, ns.mainova.de, ns2.mainova.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
b.ns14.net, ns.mainova.de, ns2.mainova.de
NS in the zone
b.ns14.net, ns.mainova.de, ns2.mainova.de
NameserverAddressesNetwork (AS)Glue
b.ns14.net217.160.81.160 2001:8d8:fe:53:217:160:81:160AS8560 IONOS-AS - IONOS SE, DE AS8560 IONOS-AS - IONOS SE, DE-
ns.mainova.de194.127.224.210AS31352 MAINOVA-AS - Mainova AG, DE194.127.224.210
ns2.mainova.de194.127.224.223AS31352 MAINOVA-AS - Mainova AG, DE194.127.224.223

Checks

  • ✓ 3 nameservers #6
    Delegated to b.ns14.net, ns.mainova.de, ns2.mainova.de.
  • ✓ 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: ns.mainova.de, ns2.mainova.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 2 IPv4 /24s and 1 IPv6 /48.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS31352 (MAINOVA-AS - Mainova AG, DE): 2 addresses; AS8560 (IONOS-AS - IONOS SE, DE): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .net.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns.mainova.de, ns2.mainova.de.
    #13

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
b.ns14.net 217.160.81.160NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
b.ns14.net 2001:8d8:fe:53:217:160:81:160NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns.mainova.de 194.127.224.210NOERROR, 6 ms, authoritativenoyes / yesrefusedWelcome at Mainova
ns2.mainova.de 194.127.224.223NOERROR, 6 ms, authoritativenoyes / yesrefusedWelcome at Mainova

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: b.ns14.net: "Served by PowerDNS - https://www.powerdns.com/"; ns.mainova.de: "Welcome at Mainova"; ns2.mainova.de: "Welcome at Mainova".
    #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

warn

serial 2012125396 · primary ns.mainova.de

Found

Primary (MNAME)
ns.mainova.de
Contact (RNAME)
soc.mainova.de
Serial
2012125396
Refresh / retry
14400 s / 1800 s
Expire
604800 s
Negative TTL
43200 s

Serial per nameserver

NameserverSerial
b.ns14.net (217.160.81.160)2012125396
b.ns14.net (2001:8d8:fe:53:217:160:81:160)2012125396
ns.mainova.de (194.127.224.210)2012125396
ns2.mainova.de (194.127.224.223)2012125394

Checks

  • !
    Serials differ
    The nameservers serve different versions of the zone: 2012125394 on ns2.mainova.de (194.127.224.223); 2012125396 on b.ns14.net (217.160.81.160), b.ns14.net (2001:8d8:fe:53:217:160:81:160), ns.mainova.de (194.127.224.210). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 30m, expire 7d, negative TTL 12h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.mainova.de is one of the listed nameservers.
  • ✓ Contact soc@mainova.de #25
    The SOA RNAME soc.mainova.de means soc@mainova.de.
  • ✓ Timestamp serial #26
    The serial 2012125396 is a Unix timestamp (2033-10-05 11:43 UTC).

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

16 records at the apex

Found

Read from
217.160.81.160:53
TypeValueTTL
SOAns.mainova.de. soc.mainova.de. 2012125396 14400 1800 604800 43200300
NSb.ns14.net.3600
NSns.mainova.de.3600
NSns2.mainova.de.3600
A194.127.225.1300
MX40 mx04.hornetsecurity.com.3600
MX10 mx01.hornetsecurity.com.3600
MX20 mx02.hornetsecurity.com.3600
MX30 mx03.hornetsecurity.com.3600
TXT"v=spf1 a ip4:194.127.224.0/24 a:malengo.exception.mx include:_spf.senders.scnem.com include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.hornetsecurity.com include:_spf-dc57.sapsf.eu -all"300
TXT"miro-verification=33cfdbd3c33b267d77074cfd6e2a7c4ea8281f84"300
TXT"_globalsign-domain-verification=auDbBGC4GogCfKbEpAu26XYpQtT09ja0rgEW89jl1h"300
TXT"atlassian-domain-verification=HpaCgHXPaswNnsHhqIOVSazhLoFKXAu6VXTdapr5UI6acAag5g2Qqz4KdNfEzfDR"300
TXT"google-site-verification=MdIKUmCujr_WkHzqxOexJwwiOfRcK4Dyzs6KNEiXqC8"300
TXT"cisco-ci-domain-verification=3512ba8dd60e550875b760c772587d1bf5458f95ffee50a7cae53fd3bae96b42"300
TXT"canva-site-verification=0xmowEOJ6-BWZL-pzUC29g"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 1h, NS 1h. The NS TTL at the parent is 1d and in the zone 1h; 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