kakao.com

Checked 22 October 2026, 09:30 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 warnings 0 failed 6 info

Registration

info

.com generic · Megazone Corp., dba HOSTING.KR · expires 2026-12-28

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Megazone Corp., dba HOSTING.KR
Registered
29 December 1996
Last changed
13 May 2026
Expires
28 December 2026
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns1.kakao.com, ns2.kakao.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 2026-12-28 #3
    The registration is valid until 2026-12-28 (66 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

ns1.kakao.com, ns2.kakao.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.kakao.com, ns2.kakao.com
NS in the zone
ns1.kakao.com, ns2.kakao.com
NameserverAddressesNetwork (AS)Glue
ns1.kakao.com113.61.106.5AS10158 KAKAO-10158-AS-KR-KR - Kakao Corp, KR113.61.106.5
ns2.kakao.com113.61.107.5AS10158 KAKAO-10158-AS-KR-KR - Kakao Corp, KR113.61.107.5

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.kakao.com, ns2.kakao.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: ns1.kakao.com, ns2.kakao.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.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS10158 (KAKAO-10158-AS-KR-KR - Kakao Corp, KR): 2 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.kakao.com 113.61.106.5NOERROR, 245 ms, authoritativenoyes / yesrefused-
ns2.kakao.com 113.61.107.5NOERROR, 244 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 2 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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

info

serial 1669036330 · primary ns.kakaocorp.com

Found

Primary (MNAME)
ns.kakaocorp.com
Contact (RNAME)
root.kakaocorp.com
Serial
1669036330
Refresh / retry
1800 s / 600 s
Expire
2419200 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns1.kakao.com (113.61.106.5)1669036330
ns2.kakao.com (113.61.107.5)1669036330

Checks

  • ✓ Serial 1669036330 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 30m, retry 10m, expire 28d, negative TTL 5m.
  • i
    Hidden master (not resolvable)
    The primary nameserver ns.kakaocorp.com is not listed as a nameserver and does not resolve publicly: a hidden master, or a placeholder name. Some tools (e.g. dynamic updates) use MNAME to find the primary.
    #24
  • ✓ Contact root@kakaocorp.com #25
    The SOA RNAME root.kakaocorp.com means root@kakaocorp.com.
  • ✓ Timestamp serial #26
    The serial 1669036330 is a Unix timestamp (2022-11-21 13:12 UTC).

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

18 records at the apex

Found

Read from
113.61.106.5:53
TypeValueTTL
SOAns.kakaocorp.com. root.kakaocorp.com. 1669036330 1800 600 2419200 300600
NSns2.kakao.com.600
NSns1.kakao.com.600
A211.242.11.41600
A121.53.93.60600
A211.249.251.46600
MX10 mx2.kakao.com.600
MX10 mx4.kakao.com.600
MX10 mx1.kakao.com.600
MX10 mx3.kakao.com.600
TXT"rovag_verification_token=D6FFB92C646749648E94FA00D3D0584D"600
TXT"google-site-verification=OVqf3b_fME-xxHijfDRV8CIZmbAbauZlS97ScYKYy7I"600
TXT"atlassian-domain-verification=v/Gl0RBTzWUdlmKuvbNVoZXYfVdTcyT6AHQOvCuzHMnwPWSqtd496BGyuB7rH49o"600
TXT"google-site-verification=puTbVVviI88yMTQf88LO_8L9y2pdlP6bI98p3qO0XdA"600
TXT"google-site-verification=WO3BhsNNCPrfc_jvi4eOZoqNPaY2rw1o95tmtXUXXG8"600
TXT"google-site-verification=Qljvs5WkxGiGJL4EzIB-BmmzJ9aOivVkrm0PrmWSZss"600
TXT"google-site-verification=rk_MxsjBvzXTt_F1ZI6877Z3V2dAH3B1BMc7bmdcWng"600
TXT"v=spf1 ip4:103.246.58.76 ip4:103.246.58.77 ip4:103.246.58.78 ip4:103.246.58.79 ip4:103.246.58.61 ip4:103.246.58.62 ip4:103.246.58.63 ip4:103.246.58.64 ip4:103.246.58.65 include:_spf.daum.net include:_spf.kakao.com ~all"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, MX 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