borbet.de

Checked 21 October 2026, 21:54 UTC · via 8.8.8.8
!Passed with warnings
24 passed 3 warnings 0 failed 2 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

pass

ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com, s1.pwb-agentur.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com, s1.pwb-agentur.de
NS in the zone
ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com, s1.pwb-agentur.de
NameserverAddressesNetwork (AS)Glue
ns1.first-ns.de213.239.242.238 2a01:4f8:0:a101::a:1AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
robotns2.second-ns.de213.133.100.103 2a01:4f8:0:1::5ddc:2AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
robotns3.second-ns.com193.47.99.3 2001:67c:192c::add:a3AS12337 NORIS-NETWORK - noris network AG, DE AS12337 NORIS-NETWORK - noris network AG, DE-
s1.pwb-agentur.de157.90.94.154 2a01:4f8:252:4009::2AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE157.90.94.154 2a01:4f8:252:4009::2

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com, s1.pwb-agentur.de.
  • ✓ 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 4 IPv4 /24s and 3 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12337 (NORIS-NETWORK - noris network AG, DE): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 6 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .de.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.first-ns.de 213.239.242.238NOERROR, 6 ms, authoritativenoyes / yesrefused-
ns1.first-ns.de 2a01:4f8:0:a101::a:1NOERROR, 6 ms, authoritativenoyes / yesrefused-
robotns2.second-ns.de 213.133.100.103NOERROR, 3 ms, authoritativenoyes / yesrefused-
robotns2.second-ns.de 2a01:4f8:0:1::5ddc:2NOERROR, 1 ms, authoritativenoyes / yesrefused-
robotns3.second-ns.com 193.47.99.3NOERROR, 8 ms, authoritativenoyes / yesrefused-
robotns3.second-ns.com 2001:67c:192c::add:a3NOERROR, 8 ms, authoritativenoyes / yesrefused-
s1.pwb-agentur.de 157.90.94.154NOERROR, 2 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.22.04.7-Ubuntu
s1.pwb-agentur.de 2a01:4f8:252:4009::2NOERROR, 3 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.22.04.7-Ubuntu

Checks

  • ✓ All respond #14
    All 8 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: s1.pwb-agentur.de: "9.18.39-0ubuntu0.22.04.7-Ubuntu". Hide or replace the version string.
    #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

pass

serial 2026102101 · primary s1.pwb-agentur.de

Found

Primary (MNAME)
s1.pwb-agentur.de
Contact (RNAME)
root.s1.pwb-agentur.de
Serial
2026102101
Refresh / retry
3600 s / 600 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.first-ns.de (213.239.242.238)2026102101
ns1.first-ns.de (2a01:4f8:0:a101::a:1)2026102101
robotns2.second-ns.de (213.133.100.103)2026102101
robotns2.second-ns.de (2a01:4f8:0:1::5ddc:2)2026102101
robotns3.second-ns.com (193.47.99.3)2026102101
robotns3.second-ns.com (2001:67c:192c::add:a3)2026102101
s1.pwb-agentur.de (157.90.94.154)2026102101
s1.pwb-agentur.de (2a01:4f8:252:4009::2)2026102101

Checks

  • ✓ Serial 2026102101 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 10m, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver s1.pwb-agentur.de is one of the listed nameservers.
  • ✓ Contact root@s1.pwb-agentur.de #25
    The SOA RNAME root.s1.pwb-agentur.de means root@s1.pwb-agentur.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

warn

19 records at the apex

Found

Read from
213.239.242.238:53
TypeValueTTL
SOAs1.pwb-agentur.de. root.s1.pwb-agentur.de. 2026102101 3600 600 1209600 36003600
NSs1.pwb-agentur.de.3600
NSns1.first-ns.de.3600
NSrobotns2.second-ns.de.3600
NSrobotns3.second-ns.com.3600
A157.90.94.15460
MX20 mx-02-eu-central-1.prod.hydra.sophos.com.200
MX10 mx-01-eu-central-1.prod.hydra.sophos.com.200
TXT"hNrVtlh/93dq/fDnUkFWw1idF5jo+GoMPEf5+dMSgTs1jSVadkd9govnq/EPiNhJ8dAsdBvuu0z2d6GFTn+6Pg=="3600
TXT"sophos-domain-verification=53756922474d97409d23a75ed7fea7cb967282c8763c5d1f34ffe631e71c98ce"3600
TXT"v=spf1 a mx mx:borbet-sachsen.de mx:borbet-thueringen.de include:_spf_eucentral1.prod.hydra.sophos.com include:spf.protection.outlook.com -all"3600
TXT"MS=ms54970106"3600
TXT"apple-domain-verification=bckFv6U4Quo6SKT6"3600
TXT"anthropic-domain-verification-41t7pv=1uWFkbfiBUeCpX6fhCrRL3tVz"3600
TXT"sophos-domain-verification=33237dddc6465381ed4b1b595eec5f1c1d8247de"3600
TXT"google-site-verification=Z5MTGR4IV5nIuhGgvjbUCsrnfzulHPV1ejWgxqYY-ks"3600
TXT"Wgs1YOnUAHMKc/xs1SMYOvJzFv37GHSzKMllAXDm3nLgYgalN130kIge0pmVPq2y+vIfLolfNBxdXfbtgDRSTQ=="3600
CAA0 issuewild "digicert.com"3600
CAA0 issuewild "letsencrypt.org"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (3m20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 1h; resolvers may use either.
    #32
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: digicert.com, letsencrypt.org.