jewishencyclopedia.com

.com generic · 101domain GRS Limited · expires 2031-02-13

Found

TLD

.com (generic)

ICANN policies apply

yes

Registrar

101domain GRS Limited

Registered

6 January 1999

Last changed

13 February 2021

Expires

13 February 2031

Status

client transfer prohibited

Registry nameservers

ns10.zoneedit.com, ns3.zoneedit.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 2031-02-13 #3

  The registration is valid until 2031-02-13 (1575 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.

ns10.zoneedit.com, ns3.zoneedit.com

Found

Parent zone

com

Delegation from

a.gtld-servers.net (192.5.6.30)

NS at the parent

ns10.zoneedit.com, ns3.zoneedit.com

NS in the zone

ns10.zoneedit.com, ns3.zoneedit.com

Checks

• i

  2 nameservers

  Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns10.zoneedit.com, ns3.zoneedit.com.

  #6
• ✓ 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 2 IPv4 /24s and 2 IPv6 /48s.
• i

  All nameservers in one AS

  All nameserver addresses are announced by one network operator (AS63949 (AKAMAI-LINODE-AP - Akamai Connected Cloud, SG): 4 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 .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
• ✓ All reachable over IPv6 #13

  Every nameserver has an IPv6 address.

4 of 4 addresses answer authoritatively

Found

Checks

• ✓ All respond #14

  All 4 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: ns10.zoneedit.com: "sjc1"; ns3.zoneedit.com: "sgp1".

  #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 1758805723 · primary dns0.zoneedit.com

Found

Primary (MNAME)

dns0.zoneedit.com

Contact (RNAME)

zone.zoneedit.com

Serial

1758805723

Refresh / retry

2400 s / 360 s

Expire

1209600 s

Negative TTL

300 s

Serial per nameserver

Checks

• ✓ Serial 1758805723 everywhere #22

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

  SOA refresh 40m, retry 6m, expire 14d, negative TTL 5m.
• i

  Hidden master

  The primary nameserver dns0.zoneedit.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 zone@zoneedit.com #25

  The SOA RNAME zone.zoneedit.com means zone@zoneedit.com.
• ✓ Timestamp serial #26

  The serial 1758805723 is a Unix timestamp (2025-09-25 13:08 UTC).

8 records at the apex

Found

Read from

45.33.33.148:53

Checks

• ✓ TTLs within range #32

  TTLs: A 2h, MX 2h, 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