johnlewis.com

.com generic · Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA · expires 2026-12-30

Found

TLD

.com (generic)

ICANN policies apply

yes

Registrar

Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA

Registered

31 December 1997

Last changed

31 December 2025

Expires

30 December 2026

Status

client delete prohibited, client transfer prohibited

Registry nameservers

a1-7.akam.net, a11-64.akam.net, a13-65.akam.net, a18-66.akam.net, a22-67.akam.net, a26-64.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 2026-12-30 #3

  The registration is valid until 2026-12-30 (68 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.

a1-7.akam.net, a11-64.akam.net, a13-65.akam.net, a18-66.akam.net, a22-67.akam.net, a26-64.akam.net

Found

Parent zone

com

Delegation from

a.gtld-servers.net (192.5.6.30)

NS at the parent

a1-7.akam.net, a11-64.akam.net, a13-65.akam.net, a18-66.akam.net, a22-67.akam.net, a26-64.akam.net

NS in the zone

a1-7.akam.net, a11-64.akam.net, a13-65.akam.net, a18-66.akam.net, a22-67.akam.net, a26-64.akam.net

Checks

• ✓ 6 nameservers #6

  Delegated to a1-7.akam.net, a11-64.akam.net, a13-65.akam.net, a18-66.akam.net, a22-67.akam.net, a26-64.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.
• ✓ 2 autonomous systems #11

  The nameservers are spread over: AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL): 1 address; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 11 addresses.
• 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 2026100101 · primary ns10.johnlewis.co.uk

Found

Primary (MNAME)

ns10.johnlewis.co.uk

Contact (RNAME)

noc.johnlewis.co.uk

Serial

2026100101

Refresh / retry

7200 s / 3600 s

Expire

1814400 s

Negative TTL

7200 s

Serial per nameserver

Checks

• ✓ Serial 2026100101 everywhere #22

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

  SOA refresh 2h, retry 1h, expire 21d, negative TTL 2h.
• i

  Hidden master

  The primary nameserver ns10.johnlewis.co.uk 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 noc@johnlewis.co.uk #25

  The SOA RNAME noc.johnlewis.co.uk means noc@johnlewis.co.uk.
• ✓ Date-based serial #26

  The serial 2026100101 follows the YYYYMMDDnn convention (2026-10-01).