oki.com

.com generic · 1API GmbH · expires 2027-05-24

Found

TLD

.com (generic)

ICANN policies apply

yes

Registrar

1API GmbH

Registered

25 May 1993

Last changed

13 April 2026

Expires

24 May 2027

Status

client transfer prohibited

Registry nameservers

a1-174.akam.net, a14-67.akam.net, a18-66.akam.net, a26-66.akam.net, a7-65.akam.net, a9-64.akam.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 2027-05-24 #3

  The registration is valid until 2027-05-24 (213 days).
• ✓ Transfer locked #4

  Registry status: client transfer prohibited.
• ✓ Registry and delegation match #5

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

a1-174.akam.net, a14-67.akam.net, a18-66.akam.net, a26-66.akam.net, a7-65.akam.net, a9-64.akam.net

Found

Parent zone

com

Delegation from

a.gtld-servers.net (192.5.6.30)

NS at the parent

a1-174.akam.net, a14-67.akam.net, a18-66.akam.net, a26-66.akam.net, a7-65.akam.net, a9-64.akam.net

NS in the zone

a1-174.akam.net, a14-67.akam.net, a18-66.akam.net, a26-66.akam.net, a7-65.akam.net, a9-64.akam.net

Checks

• ✓ 6 nameservers #6

  Delegated to a1-174.akam.net, a14-67.akam.net, a18-66.akam.net, a26-66.akam.net, a7-65.akam.net, a9-64.akam.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 6 IPv4 /24s and 6 IPv6 /48s.
• i

  All nameservers in one AS

  All nameserver addresses are announced by one network operator (AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 12 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

  #11
• i

  All nameserver names under .net

  All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.

  #12
• ✓ All reachable over IPv6 #13

  Every nameserver has an IPv6 address.

serial 2026102200 · primary dns.oki.co.jp

Found

Primary (MNAME)

dns.oki.co.jp

Contact (RNAME)

postmaster.oki.co.jp

Serial

2026102200

Refresh / retry

10800 s / 900 s

Expire

1209600 s

Negative TTL

1080 s

Serial per nameserver

Checks

• ✓ Serial 2026102200 everywhere #22

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

  SOA refresh 3h, retry 15m, expire 14d, negative TTL 18m.
• i

  Hidden master

  The primary nameserver dns.oki.co.jp 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 postmaster@oki.co.jp #25

  The SOA RNAME postmaster.oki.co.jp means postmaster@oki.co.jp.
• ✓ Date-based serial #26

  The serial 2026102200 follows the YYYYMMDDnn convention (2026-10-22).

22 records at the apex

Found

Read from

193.108.91.174:53

Checks

• ✓ TTLs within range #32

  TTLs: A 1d, MX 1d, NS 1d. The NS TTL at the parent is 2d and in the zone 1d; 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