koreajoongangdaily.com

Checked 22 October 2026, 09:32 UTC · via 8.8.8.8
!Passed with warnings
25 passed 3 warnings 0 failed 3 info

Registration

info

.com generic · Whois Corp. · expires 2027-02-02

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Whois Corp.
Registered
2 February 2010
Last changed
1 February 2026
Expires
2 February 2027
Status
client transfer prohibited
Registry nameservers
ns.joins.com, ns.joongang.co.kr, ns2.joins.com, ns2.joongang.co.kr
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 2027-02-02 #3
    The registration is valid until 2027-02-02 (102 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.

Delegation

warn

ns.joins.com, ns.joongang.co.kr, ns2.joins.com, ns2.joongang.co.kr

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns.joins.com, ns.joongang.co.kr, ns2.joins.com, ns2.joongang.co.kr
NS in the zone
ns.joins.com, ns.joongang.co.kr, ns2.joins.com, ns2.joongang.co.kr
NameserverAddressesNetwork (AS)Glue
ns.joins.com218.145.68.111AS4766 KIXS-AS-KR-KR - Korea Telecom, KR218.145.68.111
ns.joongang.co.kr203.249.157.1AS4791 JOONGANGLIBO-AS-KR-KR - JoongAng Ilbo, KR-
ns2.joins.com220.73.163.222AS4766 KIXS-AS-KR-KR - Korea Telecom, KR220.73.163.222
ns2.joongang.co.kr220.73.140.230AS4766 KIXS-AS-KR-KR - Korea Telecom, KR-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns.joins.com, ns.joongang.co.kr, ns2.joins.com, ns2.joongang.co.kr.
  • ✓ 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 4 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS4766 (KIXS-AS-KR-KR - Korea Telecom, KR): 3 addresses; AS4791 (JOONGANGLIBO-AS-KR-KR - JoongAng Ilbo, KR): 1 address.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .kr.
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.joins.com 218.145.68.111NOERROR, 295 ms, authoritativenoyes / yesrefused-
ns.joongang.co.kr 203.249.157.1NOERROR, 224 ms, authoritativenoyes / yesrefusedunknown
ns2.joins.com 220.73.163.222NOERROR, 282 ms, authoritativenoyes / yesrefused-
ns2.joongang.co.kr 220.73.140.230NOERROR, 298 ms, authoritativenoyes / yesrefused-

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: ns.joongang.co.kr: "unknown".
    #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.

SOA

warn

serial 2026082701 · primary ns.joins.com

Found

Primary (MNAME)
ns.joins.com
Contact (RNAME)
dnsadmin.joins.com
Serial
2026082701
Refresh / retry
10800 s / 900 s
Expire
432000 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
ns.joins.com (218.145.68.111)2026082701
ns.joongang.co.kr (203.249.157.1)2026082701
ns2.joins.com (220.73.163.222)2026082701
ns2.joongang.co.kr (220.73.140.230)2026082701

Checks

  • ✓ Serial 2026082701 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    expire 5d is shorter than 7d; secondaries stop answering too soon when the primary is down. Current values: refresh 3h, retry 15m, expire 5d, negative TTL 10m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.joins.com is one of the listed nameservers.
  • ✓ Contact dnsadmin@joins.com #25
    The SOA RNAME dnsadmin.joins.com means dnsadmin@joins.com.
  • ✓ Date-based serial #26
    The serial 2026082701 follows the YYYYMMDDnn convention (2026-08-27).

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

Records

info

10 records at the apex

Found

Read from
218.145.68.111:53
TypeValueTTL
SOAns.joins.com. dnsadmin.joins.com. 2026082701 10800 900 432000 600600
NSns.joins.com.600
NSns2.joongang.co.kr.600
NSns2.joins.com.600
NSns.joongang.co.kr.600
A15.197.188.249600
A3.33.166.206600
TXT"linkedin-site-verification=88fcbd8b-da9d-46fc-95a0-9368d2b3b59a"600
TXT"google-site-verification=66VhgDP452vo0I5D3rwX49437FUTUprG8hn0EDkZ9Mo"600
TXT"tollbit-domain-verification=b98ee66e687152167e2ebb0d5e77a9c23beb00ba540fe08e8a7b005a8d5ef3c0"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, NS 10m. The NS TTL at the parent is 2d and in the zone 10m; 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