zalando.com

Checked 22 October 2026, 11:42 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · Key-Systems GmbH · expires 2035-05-22

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Key-Systems GmbH
Registered
22 May 2008
Last changed
18 February 2026
Expires
22 May 2035
Status
client delete prohibited, client transfer prohibited
Registry nameservers
ns-1337.awsdns-39.org, ns-1818.awsdns-35.co.uk, ns-456.awsdns-57.com, ns-578.awsdns-08.net
RDAP server
https://rdap.verisign.com/com/v1/

Checks

  • i
    .com is a generic TLD (gTLD)
    Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.
    #1
  • ✓ TLD delegated and signed #2
    .com is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2035-05-22 #3
    The registration is valid until 2035-05-22 (3134 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns-1337.awsdns-39.org, ns-1818.awsdns-35.co.uk, ns-456.awsdns-57.com, ns-578.awsdns-08.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1337.awsdns-39.org, ns-1818.awsdns-35.co.uk, ns-456.awsdns-57.com, ns-578.awsdns-08.net
NS in the zone
ns-1337.awsdns-39.org, ns-1818.awsdns-35.co.uk, ns-456.awsdns-57.com, ns-578.awsdns-08.net
NameserverAddressesNetwork (AS)Glue
ns-1337.awsdns-39.org205.251.197.57 2600:9000:5305:3900::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1818.awsdns-35.co.uk205.251.199.26 2600:9000:5307:1a00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-456.awsdns-57.com205.251.193.200 2600:9000:5301:c800::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.200 2600:9000:5301:c800::1
ns-578.awsdns-08.net205.251.194.66 2600:9000:5302:4200::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1337.awsdns-39.org, ns-1818.awsdns-35.co.uk, ns-456.awsdns-57.com, ns-578.awsdns-08.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-1337.awsdns-39.org 205.251.197.57NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1337.awsdns-39.org 2600:9000:5305:3900::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1818.awsdns-35.co.uk 205.251.199.26NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1818.awsdns-35.co.uk 2600:9000:5307:1a00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-456.awsdns-57.com 205.251.193.200NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-456.awsdns-57.com 2600:9000:5301:c800::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-578.awsdns-08.net 205.251.194.66NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-578.awsdns-08.net 2600:9000:5302:4200::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-578.awsdns-08.net

Found

Primary (MNAME)
ns-578.awsdns-08.net
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-1337.awsdns-39.org (205.251.197.57)1
ns-1337.awsdns-39.org (2600:9000:5305:3900::1)1
ns-1818.awsdns-35.co.uk (205.251.199.26)1
ns-1818.awsdns-35.co.uk (2600:9000:5307:1a00::1)1
ns-456.awsdns-57.com (205.251.193.200)1
ns-456.awsdns-57.com (2600:9000:5301:c800::1)1
ns-578.awsdns-08.net (205.251.194.66)1
ns-578.awsdns-08.net (2600:9000:5302:4200::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-578.awsdns-08.net 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

29 records at the apex

Found

Read from
205.251.197.57:53
TypeValueTTL
SOAns-578.awsdns-08.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1337.awsdns-39.org.300
NSns-1818.awsdns-35.co.uk.300
NSns-456.awsdns-57.com.300
NSns-578.awsdns-08.net.300
A65.8.131.12760
A65.8.131.5360
A65.8.131.9460
A65.8.131.4360
AAAA2600:9000:208a:2a00:14:68:5500:93a160
AAAA2600:9000:208a:de00:14:68:5500:93a160
AAAA2600:9000:208a:4600:14:68:5500:93a160
AAAA2600:9000:208a:8400:14:68:5500:93a160
AAAA2600:9000:208a:200:14:68:5500:93a160
AAAA2600:9000:208a:e600:14:68:5500:93a160
AAAA2600:9000:208a:a000:14:68:5500:93a160
AAAA2600:9000:208a:0:14:68:5500:93a160
MX1 smtp.google.com.3600
TXT"MS=ms31863815"3600
TXT"apple-domain-verification=TkIaXP7tOVNFj7Ma"3600
TXT"facebook-domain-verification=91v041mbqqze167es1w24ja4qj96h5"3600
TXT"figma-domain-verification=600059c02c8f9330d8215ff97cbea3e6c079adefa6bff91eae765be9649160ac-1730372047"3600
TXT"github-verification=bDQKg8MbDvYwZms6btrWxxFmqzfVHXcXxsTCJLkh"3600
TXT"google-site-verification=BER9CXK3xkVm2RqIvjSNn7Uqnl29B0xVywNcMd4xwrg"3600
TXT"google-site-verification=mh9kmi3G6mUKcGuf-pLJjzFbh4bb9_gC5lunPWW8-bs"3600
TXT"miro-verification=90efd7829ae5a1098db6b0691a9e4cb1280746a7"3600
TXT"openai-domain-verification=dv-4sVY6t1iE79IPToTxeVLHU6o"3600
TXT"v=spf1 ip4:63.185.125.73 include:_spf.google.com ip4:80.237.155.68 ip4:195.71.68.47 ip4:149.96.14.2 ip4:185.85.220.205 -all"3600
TXT"zscaler-verification-44864592-2012026-K3wNnYLpSy"3600

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 2d and in the zone 5m; 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
  • 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