vietnamairlines.com

.com generic · P.A. Viet Nam Company Limited · expires 2028-05-21

Found

TLD

.com (generic)

ICANN policies apply

yes

Registrar

P.A. Viet Nam Company Limited

Registered

21 May 1999

Last changed

17 May 2026

Expires

21 May 2028

Status

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

Registry nameservers

ns1.pavietnam.vn, ns2.pavietnam.vn, nsbak.pavietnam.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 2028-05-21 #3

  The registration is valid until 2028-05-21 (577 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.

ns1.pavietnam.vn, ns2.pavietnam.vn, nsbak.pavietnam.net

Found

Parent zone

com

Delegation from

a.gtld-servers.net (192.5.6.30)

NS at the parent

ns1.pavietnam.vn, ns2.pavietnam.vn, nsbak.pavietnam.net

NS in the zone

ns1.pavietnam.vn, ns2.pavietnam.vn, nsbak.pavietnam.net

Checks

• ✓ 3 nameservers #6

  Delegated to ns1.pavietnam.vn, ns2.pavietnam.vn, nsbak.pavietnam.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.
• i

  One address family in one network

  all IPv6 addresses are in 2406:9c80::/48, while the other address family is spread over several networks.

  #10
• ✓ 2 autonomous systems #11

  The nameservers are spread over: AS45544 (SUPERDATA-AS-VN - SUPERDATA-VN, VN): 5 addresses; AS7643 (VNPT-AS-VN - Vietnam Posts and Telecommunications (VNPT), VN): 1 address.
• ✓ Nameserver names under 2 TLDs #12

  Nameserver names use the TLDs .net, .vn.
• ✓ All reachable over IPv6 #13

  Every nameserver has an IPv6 address.

6 of 6 addresses answer authoritatively

Found

Checks

• ✓ All respond #14

  All 6 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.pavietnam.vn: "[SECURED]"; ns2.pavietnam.vn: "[SECURED]"; nsbak.pavietnam.net: "[SECURED]".

  #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.

25 records at the apex

Found

Read from

112.213.89.3:53

Checks

• ✓ TTLs within range #32

  TTLs: A 1h, MX 1h, NS 1h. The NS TTL at the parent is 2d and in the zone 1h; resolvers may use either.
• ✓ No CNAME at the apex #33

  The zone apex has no CNAME record.
• i

  Wildcard record

  A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.

  #34
• 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