limango.de

Checked 21 October 2026, 23:12 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 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-1516.awsdns-61.org, ns-1897.awsdns-45.co.uk, ns-335.awsdns-41.com, ns-599.awsdns-10.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns-1516.awsdns-61.org, ns-1897.awsdns-45.co.uk, ns-335.awsdns-41.com, ns-599.awsdns-10.net
NS in the zone
ns-1516.awsdns-61.org, ns-1897.awsdns-45.co.uk, ns-335.awsdns-41.com, ns-599.awsdns-10.net
NameserverAddressesNetwork (AS)Glue
ns-1516.awsdns-61.org205.251.197.236 2600:9000:5305:ec00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1897.awsdns-45.co.uk205.251.199.105 2600:9000:5307:6900::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-335.awsdns-41.com205.251.193.79 2600:9000:5301:4f00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-599.awsdns-10.net205.251.194.87 2600:9000:5302:5700::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1516.awsdns-61.org, ns-1897.awsdns-45.co.uk, ns-335.awsdns-41.com, ns-599.awsdns-10.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-1516.awsdns-61.org 205.251.197.236NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1516.awsdns-61.org 2600:9000:5305:ec00::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1897.awsdns-45.co.uk 205.251.199.105NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1897.awsdns-45.co.uk 2600:9000:5307:6900::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-335.awsdns-41.com 205.251.193.79NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-335.awsdns-41.com 2600:9000:5301:4f00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-599.awsdns-10.net 205.251.194.87NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-599.awsdns-10.net 2600:9000:5302:5700::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

pass

serial 1 · primary ns-335.awsdns-41.com

Found

Primary (MNAME)
ns-335.awsdns-41.com
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-1516.awsdns-61.org (205.251.197.236)1
ns-1516.awsdns-61.org (2600:9000:5305:ec00::1)1
ns-1897.awsdns-45.co.uk (205.251.199.105)1
ns-1897.awsdns-45.co.uk (2600:9000:5307:6900::1)1
ns-335.awsdns-41.com (205.251.193.79)1
ns-335.awsdns-41.com (2600:9000:5301:4f00::1)1
ns-599.awsdns-10.net (205.251.194.87)1
ns-599.awsdns-10.net (2600:9000:5302:5700::1)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-335.awsdns-41.com is one of the listed nameservers.
  • ✓ 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

21 records at the apex

Found

Read from
205.251.197.236:53
TypeValueTTL
SOAns-335.awsdns-41.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1516.awsdns-61.org.172800
NSns-1897.awsdns-45.co.uk.172800
NSns-335.awsdns-41.com.172800
NSns-599.awsdns-10.net.172800
A63.184.217.13760
A18.153.160.23860
A63.188.74.5560
MX10 limango-de.mail.protection.outlook.com.3600
TXT"9dp4t0jkfbfqe52cofbporiq3f"300
TXT"MS=ms20709172"300
TXT"adobe-idp-site-verification=86e3d89586a3c84e183be6ac5f4ecb05d1011a5b6df236931e040666450a8c7f"300
TXT"apple-domain-verification=PVGnDK7lPKM5ltpv"300
TXT"atlassian-sending-domain-verification=d001f710-5621-49a4-8aca-c2544339320d"300
TXT"facebook-domain-verification=3hydchqvbrgns880ouw5bxj5tsgtqm"300
TXT"google-site-verification=TW_DM-HC0N3xaI0ftfc1xtv6fY4zIBEbED-910CAXHI"300
TXT"google-site-verification=bQOdrX5GqSZnsIhPuvJ_cvxVCKyrZ6qdCyeszZ9lChA"300
TXT"include:emsmtp.com include:emarsys.net include:spf.protection.outlook.com include:_spf.atlassian.net -all"300
TXT"mojecertpl-site-verification-TEU6HsNZIxHZmBqIyBqr9IkCci6Vcei6"300
TXT"tYU9/tBNcYVOHFZktM2nOd1EpWS+Z7Lej8xoMrjGfOt0TMxwjsd3xRnTbYvX43Vdjb6ctmz4UtYDNoDO+wi74w=="300
TXT"v=spf1 a mx ip4:82.135.37.16/28 ip4:195.140.184.0/22 ip4:91.192.40.0/22 ip4:87.230.62.52/32 ip6:2a01:488:42::/48 include:emsmtp.com include:emarsys.net include:spf.protection.outlook.com include:_spf.atlassian.net -all"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (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.
  • 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