nationalgrid.com

Checked 22 October 2026, 10:00 UTC · via 8.8.8.8
✗Problems found
10 passed 2 warnings 1 failed 3 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2026-12-09

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
9 August 1996
Last changed
5 December 2025
Expires
9 December 2026
Status
client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
ns01.nationalgrid.com, ns02.nationalgrid.com
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 2026-12-09 #3
    The registration is valid until 2026-12-09 (48 days).
  • ✓ Transfer locked #4
    Registry status: client transfer 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.

Delegation

warn

ns01.nationalgrid.com, ns02.nationalgrid.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns01.nationalgrid.com, ns02.nationalgrid.com
NS in the zone
ns01.nationalgrid.com, ns02.nationalgrid.com
NameserverAddressesNetwork (AS)Glue
ns01.nationalgrid.com65.209.62.102AS701 UUNET - Verizon Business, US65.209.62.102
ns02.nationalgrid.com62.190.154.102AS702 UUNET - Verizon Business, US62.190.154.102

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns01.nationalgrid.com, ns02.nationalgrid.com.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns01.nationalgrid.com, ns02.nationalgrid.com.
  • ✓ 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 2 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS701 (UUNET - Verizon Business, US): 1 address; AS702 (UUNET - Verizon Business, US): 1 address.
  • i
    All nameserver names under .com
    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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

fail

0 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns01.nationalgrid.com 65.209.62.102no responsenono / no--
ns02.nationalgrid.com 62.190.154.102no responsenono / no--

Checks

  • ✗
    No nameserver responds
    None of the nameserver addresses answered: ns01.nationalgrid.com (65.209.62.102): read udp 46.225.38.91:34778->65.209.62.102:53: i/o timeout; ns02.nationalgrid.com (62.190.154.102): read udp 46.225.38.91:52821->62.190.154.102:53: i/o timeout.
    #14
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

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