bitdefender.de

Checked 21 October 2026, 21:48 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

a1-39.akam.net, a10-64.akam.net, a20-66.akam.net, a3-65.akam.net, a6-65.akam.net, a9-64.akam.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
a1-39.akam.net, a10-64.akam.net, a20-66.akam.net, a3-65.akam.net, a6-65.akam.net, a9-64.akam.net
NS in the zone
a1-39.akam.net, a10-64.akam.net, a20-66.akam.net, a3-65.akam.net, a6-65.akam.net, a9-64.akam.net
NameserverAddressesNetwork (AS)Glue
a1-39.akam.net193.108.91.39 2600:1401:2::27AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a10-64.akam.net96.7.50.64 2600:1480:d000::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a20-66.akam.net95.100.175.66 2a02:26f0:67::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a3-65.akam.net96.7.49.65 2600:1408:1c::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a6-65.akam.net23.211.133.65 2600:1401:1::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a9-64.akam.net184.85.248.64 2a02:26f0:117::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-39.akam.net, a10-64.akam.net, a20-66.akam.net, a3-65.akam.net, a6-65.akam.net, a9-64.akam.net.
  • ✓ 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 6 IPv4 /24s and 6 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 12 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • 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

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a1-39.akam.net 193.108.91.39NOERROR, 3 ms, authoritativenoyes / yesrefused41824.8
a1-39.akam.net 2600:1401:2::27NOERROR, 4 ms, authoritativenoyes / yesrefused41824.4
a10-64.akam.net 96.7.50.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.31
a10-64.akam.net 2600:1480:d000::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.30
a20-66.akam.net 95.100.175.66NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
a20-66.akam.net 2a02:26f0:67::42NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a3-65.akam.net 96.7.49.65NOERROR, 3 ms, authoritativenoyes / yesrefused41824.11
a3-65.akam.net 2600:1408:1c::41NOERROR, 4 ms, authoritativenoyes / yesrefused41824.10
a6-65.akam.net 23.211.133.65NOERROR, 3 ms, authoritativenoyes / yesrefused48878.29
a6-65.akam.net 2600:1401:1::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.31
a9-64.akam.net 184.85.248.64NOERROR, 4 ms, authoritativenoyes / yesrefused41824.11
a9-64.akam.net 2a02:26f0:117::40NOERROR, 3 ms, authoritativenoyes / yesrefused41824.5

Checks

  • ✓ All respond #14
    All 12 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: a1-39.akam.net: "41824.8"; a1-39.akam.net: "41824.4"; a10-64.akam.net: "48878.31"; a10-64.akam.net: "48878.30"; a20-66.akam.net: "48878.27"; a20-66.akam.net: "48878.32"; a3-65.akam.net: "41824.11"; a3-65.akam.net: "41824.10"; a6-65.akam.net: "48878.29"; a6-65.akam.net: "48878.31"; a9-64.akam.net: "41824.11"; a9-64.akam.net: "41824.5". 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 2026063012 · primary a1-39.akam.net

Found

Primary (MNAME)
a1-39.akam.net
Contact (RNAME)
tech-admin.bitdefender.com
Serial
2026063012
Refresh / retry
3600 s / 600 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
a1-39.akam.net (193.108.91.39)2026063012
a1-39.akam.net (2600:1401:2::27)2026063012
a10-64.akam.net (96.7.50.64)2026063012
a10-64.akam.net (2600:1480:d000::40)2026063012
a20-66.akam.net (95.100.175.66)2026063012
a20-66.akam.net (2a02:26f0:67::42)2026063012
a3-65.akam.net (96.7.49.65)2026063012
a3-65.akam.net (2600:1408:1c::41)2026063012
a6-65.akam.net (23.211.133.65)2026063012
a6-65.akam.net (2600:1401:1::41)2026063012
a9-64.akam.net (184.85.248.64)2026063012
a9-64.akam.net (2a02:26f0:117::40)2026063012

Checks

  • ✓ Serial 2026063012 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 10m, expire 7d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-39.akam.net is one of the listed nameservers.
  • ✓ Contact tech-admin@bitdefender.com #25
    The SOA RNAME tech-admin.bitdefender.com means tech-admin@bitdefender.com.
  • ✓ Date-based serial #26
    The serial 2026063012 follows the YYYYMMDDnn convention (2026-06-30).

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

19 records at the apex

Found

Read from
193.108.91.39:53
TypeValueTTL
SOAa1-39.akam.net. tech-admin.bitdefender.com. 2026063012 3600 600 604800 30086400
NSa20-66.akam.net.900
NSa3-65.akam.net.900
NSa1-39.akam.net.900
NSa6-65.akam.net.900
NSa9-64.akam.net.900
NSa10-64.akam.net.900
A104.18.24.1023600
A104.18.25.1023600
AAAA2606:4700::6812:19663600
AAAA2606:4700::6812:18663600
MX10 mx01.bitdefender.com.900
MX10 mx02.bitdefender.com.900
TXT"MS=ms51826893"3600
TXT"adobe-idp-site-verification=0f04092d6a82f8c484f53c0cdc1639277f690ff76b13ceeec54505768c1e641d"3600
TXT"mandrill_verify.hJmqqO0k5PE5ss51nQyEng"3600
TXT"google-site-verification=v2AyeuIpFaU3VwFHExiovplbqS5WRx5SZ051L4jG_ks"3600
TXT"atlassian-domain-verification=34BCGNE4goU2sS7B2H+sTVbt/m0DlOnbHn3+2vC9+ZdNW1QOnvvs8QysSIFKd8Wn"3600
TXT"v=spf1 include:_spf.digitalrivercontent.net include:spf.mindmatrix.net include:_spf.salesforce.com include:spf2.bitdefender.de include:341979.spf06.hubspotemail.net -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, AAAA 1h, MX 15m, NS 15m. The NS TTL at the parent is 1d and in the zone 15m; 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