huffingtonpost.de

Checked 21 October 2026, 22:51 UTC · via 8.8.8.8
!Passed with warnings
22 passed 3 warnings 0 failed 4 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

ns-1299.awsdns-34.org, ns-1540.awsdns-00.co.uk, ns-412.awsdns-51.com, ns-892.awsdns-47.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns-1299.awsdns-34.org, ns-1540.awsdns-00.co.uk, ns-412.awsdns-51.com, ns-892.awsdns-47.net
NS in the zone
ns-1299.awsdns-34.org, ns-1540.awsdns-00.co.uk, ns-412.awsdns-51.com, ns-892.awsdns-47.net
NameserverAddressesNetwork (AS)Glue
ns-1299.awsdns-34.org205.251.197.19 2600:9000:5305:1300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1540.awsdns-00.co.uk205.251.198.4 2600:9000:5306:400::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-412.awsdns-51.com205.251.193.156 2600:9000:5301:9c00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-892.awsdns-47.net205.251.195.124 2600:9000:5303:7c00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1299.awsdns-34.org, ns-1540.awsdns-00.co.uk, ns-412.awsdns-51.com, ns-892.awsdns-47.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 4 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 8 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .com, .net, .org, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1299.awsdns-34.org 205.251.197.19NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1299.awsdns-34.org 2600:9000:5305:1300::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1540.awsdns-00.co.uk 205.251.198.4NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1540.awsdns-00.co.uk 2600:9000:5306:400::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-412.awsdns-51.com 205.251.193.156NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-412.awsdns-51.com 2600:9000:5301:9c00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-892.awsdns-47.net 205.251.195.124NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-892.awsdns-47.net 2600:9000:5303:7c00::1NOERROR, 4 ms, authoritativenoyes / yesrefused-

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.
  • ✓ 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

warn

serial 1 · primary huffingtonpost.de

Found

Primary (MNAME)
huffingtonpost.de
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
28800 s / 3600 s
Expire
604800 s
Negative TTL
180 s

Serial per nameserver

NameserverSerial
ns-1299.awsdns-34.org (205.251.197.19)1
ns-1299.awsdns-34.org (2600:9000:5305:1300::1)1
ns-1540.awsdns-00.co.uk (205.251.198.4)1
ns-1540.awsdns-00.co.uk (2600:9000:5306:400::1)1
ns-412.awsdns-51.com (205.251.193.156)1
ns-412.awsdns-51.com (2600:9000:5301:9c00::1)1
ns-892.awsdns-47.net (205.251.195.124)1
ns-892.awsdns-47.net (2600:9000:5303:7c00::1)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 3m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 8h, retry 1h, expire 7d, negative TTL 3m.
    #23
  • i
    Hidden master
    The primary nameserver huffingtonpost.de is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Counter serial #26
    The serial 1 is a plain counter.

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

26 records at the apex

Found

Read from
205.251.197.19:53
TypeValueTTL
SOAhuffingtonpost.de. awsdns-hostmaster.amazon.com. 1 28800 3600 604800 18030
NSns-1299.awsdns-34.org.172800
NSns-1540.awsdns-00.co.uk.172800
NSns-412.awsdns-51.com.172800
NSns-892.awsdns-47.net.172800
A18.64.211.2660
A18.64.211.5560
A18.64.211.8160
A18.64.211.9960
MX1 aspmx.l.google.com.60
MX10 alt3.aspmx.l.google.com.60
MX10 alt4.aspmx.l.google.com.60
MX5 alt1.aspmx.l.google.com.60
MX5 alt2.aspmx.l.google.com.60
TXT"docusign=035b2e72-ef23-4500-b4f4-d226b50c3027"12096000
TXT"dropbox-domain-verification=ro6htybvczc8"12096000
TXT"facebook-domain-verification=0okjscutl2kdgr7pa44os3mxmn77no"12096000
TXT"google-site-verification=906ypqIrDGE5b200QVMyylcashosWiZj_9qb4se0KOk"12096000
TXT"google-site-verification=NmOYuc25WprJI3KivUJUb7AZWihImxIKS7k5H5KPQdA"12096000
TXT"spf2.0/pra include:huffingtonpost.com ~all"12096000
TXT"v=spf1 include:huffingtonpost.com ip4:148.163.135.35/32 ip4:148.163.139.55/32 ~all"12096000
TXT"y004l8g3z6p6mxtm017cmyh026jzsv2z"12096000
CAA0 iodef "mailto:security@verizonmedia.com"60
CAA0 issue "amazon.com"60
CAA0 issue "digicert.com"60
CAA0 issue "globalsign.com"60

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 2d; 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: amazon.com, digicert.com, globalsign.com.