bmbf.de

Checked 21 October 2026, 21:50 UTC · via 8.8.8.8
!Passed with warnings
23 passed 1 warning 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

ns1.bringe.net, ns2.bringe.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.bringe.net, ns2.bringe.net
NS in the zone
ns1.bringe.net, ns2.bringe.net
NameserverAddressesNetwork (AS)Glue
ns1.bringe.net93.191.165.4 2a06:5d00:0:1005::53AS47372 BIG3AS - Bringe Informationstechnik GmbH, DE AS47372 BIG3AS - Bringe Informationstechnik GmbH, DE-
ns2.bringe.net213.144.3.30 2a02:788:10c:200::42AS12843 TELEMAXX - TelemaxX Telekommunikation GmbH, DE AS12843 TELEMAXX - TelemaxX Telekommunikation GmbH, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.bringe.net, ns2.bringe.net.
    #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.
  • ✓ 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: AS12843 (TELEMAXX - TelemaxX Telekommunikation GmbH, DE): 2 addresses; AS47372 (BIG3AS - Bringe Informationstechnik GmbH, DE): 2 addresses.
  • i
    All nameserver names under .net
    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

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.bringe.net 93.191.165.4NOERROR, 8 ms, authoritativenoyes / yesrefused-
ns1.bringe.net 2a06:5d00:0:1005::53NOERROR, 7 ms, authoritativenoyes / yesrefused-
ns2.bringe.net 213.144.3.30NOERROR, 6 ms, authoritativenoyes / yesrefused-
ns2.bringe.net 2a02:788:10c:200::42NOERROR, 6 ms, authoritativenoyes / yesrefused-

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.
  • ✓ 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 2026010400 · primary ns1.bringe.net

Found

Primary (MNAME)
ns1.bringe.net
Contact (RNAME)
hostmaster.bringe.com
Serial
2026010400
Refresh / retry
86400 s / 10800 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.bringe.net (93.191.165.4)2026010400
ns1.bringe.net (2a06:5d00:0:1005::53)2026010400
ns2.bringe.net (213.144.3.30)2026010400
ns2.bringe.net (2a02:788:10c:200::42)2026010400

Checks

  • ✓ Serial 2026010400 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 3h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.bringe.net is one of the listed nameservers.
  • ✓ Contact hostmaster@bringe.com #25
    The SOA RNAME hostmaster.bringe.com means hostmaster@bringe.com.
  • ✓ Date-based serial #26
    The serial 2026010400 follows the YYYYMMDDnn convention (2026-01-04).

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

8 records at the apex

Found

Read from
93.191.165.4:53
TypeValueTTL
SOAns1.bringe.net. hostmaster.bringe.com. 2026010400 86400 10800 604800 86400300
NSns2.bringe.net.300
NSns1.bringe.net.300
A80.245.145.10300
MX10 mx1.bund.de.300
MX10 mx2.bund.de.300
TXT"v=spf1 ip4:194.95.176.0/22 ~all"300
TXT"D-TRUST=V3JNESFJ6VCAGKK469SYLQ2"300

Checks

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