h-brs.de

Checked 21 October 2026, 22:41 UTC · via 8.8.8.8
✗Problems found
21 passed 1 warning 1 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

ns1.h-brs.de, ns2.h-brs.de, nsd6.schlundtech.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.h-brs.de, ns2.h-brs.de, nsd6.schlundtech.de
NS in the zone
ns1.h-brs.de, ns2.h-brs.de, nsd6.schlundtech.de
NameserverAddressesNetwork (AS)Glue
ns1.h-brs.de194.95.62.40AS680 DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE194.95.62.40
ns2.h-brs.de194.95.62.55AS680 DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE194.95.62.55
nsd6.schlundtech.de217.160.81.227 2001:8d8:fe:53:217:160:81:227AS8560 IONOS-AS - IONOS SE, DE AS8560 IONOS-AS - IONOS SE, DE-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.h-brs.de, ns2.h-brs.de, nsd6.schlundtech.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: ns1.h-brs.de, ns2.h-brs.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: AS680 (DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE): 2 addresses; AS8560 (IONOS-AS - IONOS SE, DE): 2 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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns1.h-brs.de, ns2.h-brs.de.
    #13

Nameservers

fail

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.h-brs.de 194.95.62.40NOERROR, 6 ms, authoritativenoyes / yesrefused[NONE]
ns2.h-brs.de 194.95.62.55NOERROR, 7 ms, authoritativenoyes / yesALLOWED (409 records)[NONE]
nsd6.schlundtech.de 217.160.81.227NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
nsd6.schlundtech.de 2001:8d8:fe:53:217:160:81:227NOERROR, 10 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/

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: ns1.h-brs.de: "[NONE]"; ns2.h-brs.de: "[NONE]"; nsd6.schlundtech.de: "Served by PowerDNS - https://www.powerdns.com/".
    #17
  • ✗
    Zone transfer allowed
    These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: ns2.h-brs.de (194.95.62.55): 409 records. Restrict zone transfers to your secondary servers.
    #18
  • ✓ 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 2026102101 · primary ns1.h-brs.de

Found

Primary (MNAME)
ns1.h-brs.de
Contact (RNAME)
hostmaster.h-brs.de
Serial
2026102101
Refresh / retry
3600 s / 300 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.h-brs.de (194.95.62.40)2026102101
ns2.h-brs.de (194.95.62.55)2026102101
nsd6.schlundtech.de (217.160.81.227)2026102101
nsd6.schlundtech.de (2001:8d8:fe:53:217:160:81:227)2026102101

Checks

  • ✓ Serial 2026102101 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 5m, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.h-brs.de is one of the listed nameservers.
  • ✓ Contact hostmaster@h-brs.de #25
    The SOA RNAME hostmaster.h-brs.de means hostmaster@h-brs.de.
  • ✓ Date-based serial #26
    The serial 2026102101 follows the YYYYMMDDnn convention (2026-10-21).

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

18 records at the apex

Found

Read from
194.95.62.40:53
TypeValueTTL
SOAns1.h-brs.de. hostmaster.h-brs.de. 2026102101 3600 300 1209600 36003600
NSnsd6.schlundtech.de.3600
NSns2.h-brs.de.3600
NSns1.h-brs.de.3600
A178.63.129.1473600
MX10 mx03.h-brs.de.3600
MX10 mx01.h-brs.de.3600
MX10 mx02.h-brs.de.3600
MX10 mx04.h-brs.de.3600
TXT"google-gws-recovery-domain-verification=62166795"3600
TXT"apple-domain-verification=u4WBB3l1K2krdW72"3600
TXT"v=spf1 mx a:mail.sop-at.com ip4:194.45.37.23/32 ip4:10.20.108.175/32 ip4:194.95.66.0/24 ip4:194.95.62.0/24 include:_spf.kundenserver.de include:newsmailservice.de include:spf.qb-feedback.com include:spf.protection.outlook.com -all"3600
TXT"cisco-ci-domain-verification=66e2b5b474799eb7da2ee4ec58df3d187ecb380d160a42ec94d2fbd66bac069"3600
TXT"facebook-domain-verification=2ofgyfl7igxryfgeo5qbux4cdb6ovy"3600
TXT"google-site-verification=qnA_PEh4R105n3j0gyByhX5TVum4V3DwOK_qkYXid_o"3600
TXT"spycloud-domain-verification=833d82ad-408d-45b9-b33d-4e72a852f3c2"3600
TXT"adobe-idp-site-verification=c8a040d394994656416feae110ca1b2929f658f824bbff17fa5ad18cf773308f"3600
TXT"google-site-verification=N-yLiOALs53_i8t_wUUVDe9WsZOZOYWLJpNCmyZZmrk"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, 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