buderus.de

Checked 21 October 2026, 22:00 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

warn

gwa.fe.bosch.de, gwa2.fe.bosch.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
gwa.fe.bosch.de, gwa2.fe.bosch.de
NS in the zone
gwa.fe.bosch.de, gwa2.fe.bosch.de
NameserverAddressesNetwork (AS)Glue
gwa.fe.bosch.de194.39.219.2 2a03:cc00:ff0:2f02::10 2a03:cc00:ff0:200a::dAS9183 UNSPECIFIED - Robert Bosch Gesellschaft mit Beschraenkter Haftung, DE AS9183 UNSPECIFIED - Robert Bosch Gesellschaft mit Beschraenkter Haftung, DE AS9183 UNSPECIFIED - Robert Bosch Gesellschaft mit Beschraenkter Haftung, DE194.39.219.2 2a03:cc00:ff0:2f02::10
gwa2.fe.bosch.de103.4.124.215 2401:d00:ff0:2f01::11 2401:d00:ff0:2003::8AS133466 BOSCH-NET-AP - Robert Bosch GmbH, SG AS133466 BOSCH-NET-AP - Robert Bosch GmbH, SG AS133466 BOSCH-NET-AP - Robert Bosch GmbH, SG103.4.124.215 2401:d00:ff0:2f01::11

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: gwa.fe.bosch.de, gwa2.fe.bosch.de.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: gwa.fe.bosch.de (glue 194.39.219.2, 2a03:cc00:ff0:2f02::10, zone 194.39.219.2, 2a03:cc00:ff0:2f02::10, 2a03:cc00:ff0:200a::d); gwa2.fe.bosch.de (glue 103.4.124.215, 2401:d00:ff0:2f01::11, zone 103.4.124.215, 2401:d00:ff0:2f01::11, 2401:d00:ff0:2003::8). Update the glue at your registrar.
    #8
  • ✓ 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 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS133466 (BOSCH-NET-AP - Robert Bosch GmbH, SG): 3 addresses; AS9183 (UNSPECIFIED - Robert Bosch Gesellschaft mit Beschraenkter Haftung, DE): 3 addresses.
  • 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

pass

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
gwa.fe.bosch.de 194.39.219.2NOERROR, 9 ms, authoritativenoyes / yesrefused-
gwa.fe.bosch.de 2a03:cc00:ff0:2f02::10NOERROR, 10 ms, authoritativenoyes / yesrefused-
gwa.fe.bosch.de 2a03:cc00:ff0:200a::dNOERROR, 9 ms, authoritativenoyes / yesrefused-
gwa2.fe.bosch.de 103.4.124.215NOERROR, 189 ms, authoritativenoyes / yesrefused-
gwa2.fe.bosch.de 2401:d00:ff0:2f01::11NOERROR, 185 ms, authoritativenoyes / yesrefused-
gwa2.fe.bosch.de 2401:d00:ff0:2003::8NOERROR, 186 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

pass

serial 2016082914 · primary gwa.fe.bosch.de

Found

Primary (MNAME)
gwa.fe.bosch.de
Contact (RNAME)
hostmaster.bosch.de
Serial
2016082914
Refresh / retry
86400 s / 7200 s
Expire
3600000 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
gwa.fe.bosch.de (194.39.219.2)2016082914
gwa.fe.bosch.de (2a03:cc00:ff0:2f02::10)2016082914
gwa.fe.bosch.de (2a03:cc00:ff0:200a::d)2016082914
gwa2.fe.bosch.de (103.4.124.215)2016082914
gwa2.fe.bosch.de (2401:d00:ff0:2f01::11)2016082914
gwa2.fe.bosch.de (2401:d00:ff0:2003::8)2016082914

Checks

  • ✓ Serial 2016082914 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 2h, expire 1000h, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver gwa.fe.bosch.de is one of the listed nameservers.
  • ✓ Contact hostmaster@bosch.de #25
    The SOA RNAME hostmaster.bosch.de means hostmaster@bosch.de.
  • ✓ Date-based serial #26
    The serial 2016082914 follows the YYYYMMDDnn convention (2016-08-29).

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

20 records at the apex

Found

Read from
194.39.219.2:53
TypeValueTTL
SOAgwa.fe.bosch.de. hostmaster.bosch.de. 2016082914 86400 7200 3600000 8640014400
NSgwa.fe.bosch.de.14400
NSgwa2.fe.bosch.de.14400
A20.224.54.6814400
MX10 buderus-de.mail.protection.outlook.com.14400
TXT"google-gws-recovery-domain-verification=49142986"14400
TXT"google-gws-recovery-domain-verification=49143015"14400
TXT"mzj79njdz1ws09wxlyppxnf5hkrpprdz"14400
TXT"606r1v1kr9t9vn9gxvq1ml1ptkpn85k7"14400
TXT"_58dhaygzzwkdawkydudlkm5xuilyd8e"14400
TXT"bhtWW+wrDMRnY42eliOGZjiLlu98xhlnbPskihm3mi/f7eWZNd754T5geeqZBOclqzXxysDuBTvncAakj1j21w=="14400
TXT"v=spf1 include:_spf.bosch.de -all"14400
TXT"adobe-idp-site-verification=e13fd7b27a30ca44261bc7ad3f0b2e0994b724830fe8afc38a6565a40d81bde4"14400
TXT"MS=ms69118035"14400
TXT"google-site-verification=NIqTdooZ6jxkSq1XW57q9ISngs1InWdLCDM7QpP8SuY"14400
TXT"google-site-verification=CRKXvfYHobE8KzAw3RSU84unLkpqQ3ZhKGNi35d27EE"14400
TXT"google-site-verification=POgkJhRH_j8qZNP_rqRRVWZHNWfznvcc8_7BvzmMcPM"14400
TXT"miro-verification=95bb46ca27717c388e091411d7fe643e3a3d2b3d"14400
TXT"oTMXp/26cIuVIjv1L9tIXwaG8sKBtgIB5IrtslD323AOC3T1O7HuWumv/EDVvr+QtMp9N0ySlZDSZ+euZH0FSg=="14400
TXT"google-site-verification=L0H-Q3f4I3OctdWK5GyuUt-t4NQx-Wk77NhCPehb2R8"14400

Checks

  • ✓ TTLs within range #32
    TTLs: A 4h, MX 4h, NS 4h. The NS TTL at the parent is 1d and in the zone 4h; 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