images-amazon.com

.com generic · MarkMonitor Inc. · expires 2027-04-16

Found

TLD

.com (generic)

ICANN policies apply

yes

Registrar

MarkMonitor Inc.

Registered

20 July 2004

Last changed

31 January 2026

Expires

16 April 2027

Status

client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited

Registry nameservers

ns1.amzndns.co.uk, ns1.amzndns.com, ns1.amzndns.net, ns1.amzndns.org, ns2.amzndns.co.uk, ns2.amzndns.com, ns2.amzndns.net, ns2.amzndns.org

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 2027-04-16 #3

  The registration is valid until 2027-04-16 (175 days).
• ✓ Transfer locked #4

  Registry status: client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited.
• ✓ Registry and delegation match #5

  The nameservers registered at the registry are the ones published in DNS.

16 of 16 addresses answer authoritatively

Found

Checks

• ✓ All respond #14

  All 16 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.
• i

  Identifying string disclosed

  These nameservers answer version queries with a string that is not a version number: ns1.amzndns.co.uk: "UltraDNS Nameserver"; ns1.amzndns.com: "UltraDNS Nameserver"; ns1.amzndns.net: "UltraDNS Nameserver"; ns1.amzndns.org: "UltraDNS Nameserver"; ns2.amzndns.co.uk: "UltraDNS Nameserver"; ns2.amzndns.com: "UltraDNS Nameserver"; ns2.amzndns.net: "UltraDNS Nameserver"; ns2.amzndns.org: "UltraDNS Nameserver".

  #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.

serial 2008072655 · primary dns-external-master.amazon.com

Found

Primary (MNAME)

dns-external-master.amazon.com

Contact (RNAME)

root.amazon.com

Serial

2008072655

Refresh / retry

3600 s / 900 s

Expire

604800 s

Negative TTL

900 s

Serial per nameserver

Checks

• ✓ Serial 2008072655 everywhere #22

  All nameservers serve the same version of the zone.
• ✓ Timers within recommendations #23

  SOA refresh 1h, retry 15m, expire 7d, negative TTL 15m.
• i

  Hidden master

  The primary nameserver dns-external-master.amazon.com 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 root@amazon.com #25

  The SOA RNAME root.amazon.com means root@amazon.com.
• ✓ Date-based serial #26

  The serial 2008072655 follows the YYYYMMDDnn convention (2008-07-26).

11 records at the apex

Found

Read from

156.154.67.10:53

Checks

• ✓ TTLs within range #32

  TTLs: NS 2h. The NS TTL at the parent is 2d and in the zone 2h; 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