mobile.de

Checked 21 October 2026, 23:30 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-1413.awsdns-48.org, ns-1912.awsdns-47.co.uk, ns-376.awsdns-47.com, ns-676.awsdns-20.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns-1413.awsdns-48.org, ns-1912.awsdns-47.co.uk, ns-376.awsdns-47.com, ns-676.awsdns-20.net
NS in the zone
ns-1413.awsdns-48.org, ns-1912.awsdns-47.co.uk, ns-376.awsdns-47.com, ns-676.awsdns-20.net
NameserverAddressesNetwork (AS)Glue
ns-1413.awsdns-48.org205.251.197.133 2600:9000:5305:8500::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1912.awsdns-47.co.uk205.251.199.120 2600:9000:5307:7800::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-376.awsdns-47.com205.251.193.120 2600:9000:5301:7800::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-676.awsdns-20.net205.251.194.164 2600:9000:5302:a400::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1413.awsdns-48.org, ns-1912.awsdns-47.co.uk, ns-376.awsdns-47.com, ns-676.awsdns-20.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-1413.awsdns-48.org 205.251.197.133NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1413.awsdns-48.org 2600:9000:5305:8500::1NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1912.awsdns-47.co.uk 205.251.199.120NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1912.awsdns-47.co.uk 2600:9000:5307:7800::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-376.awsdns-47.com 205.251.193.120NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-376.awsdns-47.com 2600:9000:5301:7800::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-676.awsdns-20.net 205.251.194.164NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-676.awsdns-20.net 2600:9000:5302:a400::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-376.awsdns-47.com

Found

Primary (MNAME)
ns-376.awsdns-47.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-1413.awsdns-48.org (205.251.197.133)1
ns-1413.awsdns-48.org (2600:9000:5305:8500::1)1
ns-1912.awsdns-47.co.uk (205.251.199.120)1
ns-1912.awsdns-47.co.uk (2600:9000:5307:7800::1)1
ns-376.awsdns-47.com (205.251.193.120)1
ns-376.awsdns-47.com (2600:9000:5301:7800::1)1
ns-676.awsdns-20.net (205.251.194.164)1
ns-676.awsdns-20.net (2600:9000:5302:a400::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-376.awsdns-47.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

43 records at the apex

Found

Read from
205.251.197.133:53
TypeValueTTL
SOAns-376.awsdns-47.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1413.awsdns-48.org.172800
NSns-1912.awsdns-47.co.uk.172800
NSns-376.awsdns-47.com.172800
NSns-676.awsdns-20.net.172800
A13.32.99.4260
A13.32.99.7160
A13.32.99.4360
A13.32.99.2760
AAAA2600:9000:2251:2000:c:acae:7180:93a160
AAAA2600:9000:2251:e600:c:acae:7180:93a160
AAAA2600:9000:2251:7600:c:acae:7180:93a160
AAAA2600:9000:2251:b600:c:acae:7180:93a160
AAAA2600:9000:2251:cc00:c:acae:7180:93a160
AAAA2600:9000:2251:c800:c:acae:7180:93a160
AAAA2600:9000:2251:7200:c:acae:7180:93a160
AAAA2600:9000:2251:3e00:c:acae:7180:93a160
MX10 mx.sendgrid.net.10800
TXT"5w5hd9mqrbjdzqsxdyfg7c4sb6t8j2vr"10800
TXT"MS=ms11016982"10800
TXT"_2xiu2w6wd4rlz0n7497lonw143gpg3l"10800
TXT"atlassian-domain-verification=3/ZfsnVOAUBuPTJcE3CFLpsIpvYc7rYSRjVK4BNQSKO0XILqXz5fahZqemYkf6bx"10800
TXT"docusign=a78af539-7e12-4ff3-a3fe-3d2abe1c7f79"10800
TXT"google-site-verification=M9xZDLnXpxMglnE-Bvc7mavBSFFQe668INxyfWSG-58"10800
TXT"google-site-verification=UxU06DGs7u5OylYn5P72--e1-DXDlQz2kx2HHoBlokE"10800
TXT"google-site-verification=ZK5tyZWlbKYI4bodbnUfaydWzJCk_4CB8JBX9I7EYcw"10800
TXT"google-site-verification=aY0gtEpRB9_ZS88bA9KtEQR_H6FLZJ4j14KidLt9s6g"10800
TXT"google-site-verification=eSL4m09oua73DHHWrhV-BhIgVeUItle0eEiGY7bI3TQ"10800
TXT"google-site-verification=h0gYETjIhm0tB8z7VvPCUTsAVSJP4sAynOm0KOgzgMg"10800
TXT"google-site-verification=i5WaoHB1-rhZvbdHILlvgkswOYeIHxCAa0CvS8YZSbo"10800
TXT"google-site-verification=uB7MzhmVAM8FuNH1yHJT0r69oz7w1UDf1eVu8n0vUqM"10800
TXT"google-site-verification=wBbwt0QcXlQE9eI0MevOyRaQSvkC7hDWOYKerFoXln4"10800
TXT"google-site-verification=zRs-yLyehqxzaiCYZP-EJHAh8IxjaGKUnzVu42LkOzQ"10800
TXT"v=spf1 mx ip4:91.211.75.0/24 ip4:194.50.69.0/24 ip6:2a04:cb41:f016:2::/64 ip6:2a04:cb41:a516:2::/64 a:mx1.hc2186-24.iphmx.com include:spf.ecgmail.cloud include:sendgrid.net ~all"10800
TXT"x3s9t6h0s5yfdbkwz7603bd41rdldmvj"10800
CAA0 iodef "mailto:gp.gt.cloudandinfra-techhubs-mobile@adevinta.com"600
CAA0 issue "amazontrust.com"600
CAA0 issue "digicert.com"600
CAA0 issue "letsencrypt.org"600
CAA0 issue "pki.goog"600
CAA0 issue "sectigo.com"600
CAA0 issuewild "amazontrust.com"600
CAA0 issuewild "sectigo.com"600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), AAAA (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.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: amazontrust.com, digicert.com, letsencrypt.org, pki.goog, sectigo.com.