ipmplat.com

Checked 22 October 2026, 09:21 UTC · via 8.8.8.8
!Passed with warnings
21 passed 3 warnings 0 failed 7 info

Registration

info

.com generic · Alibaba Cloud Computing (Beijing) Co., Ltd. · expires 2031-11-16

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Registered
16 November 2020
Last changed
24 August 2026
Expires
16 November 2031
Status
active
Registry nameservers
dns1.hichina.com, dns2.hichina.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 2031-11-16 #3
    The registration is valid until 2031-11-16 (1850 days).
  • i
    No transfer lock
    The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.
    #4
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

dns1.hichina.com, dns2.hichina.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns1.hichina.com, dns2.hichina.com
NS in the zone
dns1.hichina.com, dns2.hichina.com
NameserverAddressesNetwork (AS)Glue
dns1.hichina.com120.76.107.43 47.118.199.203 47.118.199.213 139.224.142.113 39.96.153.63 139.224.142.123 39.96.153.43 120.76.107.63 2408:4009:501::9AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN120.76.107.43 120.76.107.63 139.224.142.113 139.224.142.123 2408:4009:501::9 39.96.153.43 39.96.153.63 47.118.199.203 47.118.199.213
dns2.hichina.com139.224.142.114 139.224.142.124 39.96.153.54 39.96.153.44 47.118.199.204 120.76.107.54 47.118.199.214 120.76.107.44 2408:4009:501::10AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN120.76.107.44 120.76.107.54 139.224.142.114 139.224.142.124 2408:4009:501::10 39.96.153.44 39.96.153.54 47.118.199.204 47.118.199.214

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns1.hichina.com, dns2.hichina.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.
  • i
    One address family in one network
    all IPv6 addresses are in 2408:4009:501::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS37963 (ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN): 18 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.

Nameservers

pass

18 of 18 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.hichina.com 120.76.107.43NOERROR, 198 ms, authoritativenoyes / yesrefused-
dns1.hichina.com 47.118.199.203NOERROR, 235 ms, authoritativenoyes / yesrefused-
dns1.hichina.com 47.118.199.213NOERROR, 203 ms, authoritativenoyes / yesrefused-
dns1.hichina.com 139.224.142.113NOERROR, 176 ms, authoritativenoyes / yesrefused-
dns1.hichina.com 39.96.153.63NOERROR, 141 ms, authoritativenoyes / yesrefused-
dns1.hichina.com 139.224.142.123NOERROR, 216 ms, authoritativenoyes / yesrefused-
dns1.hichina.com 39.96.153.43NOERROR, 138 ms, authoritativenoyes / yesrefused-
dns1.hichina.com 120.76.107.63NOERROR, 208 ms, authoritativenoyes / yesrefused-
dns1.hichina.com 2408:4009:501::9NOERROR, 185 ms, authoritativenoyes / yesrefused-
dns2.hichina.com 139.224.142.114NOERROR, 168 ms, authoritativenoyes / yesrefused-
dns2.hichina.com 139.224.142.124NOERROR, 208 ms, authoritativenoyes / yesrefused-
dns2.hichina.com 39.96.153.54NOERROR, 153 ms, authoritativenoyes / yesrefused-
dns2.hichina.com 39.96.153.44NOERROR, 163 ms, authoritativenoyes / yesrefused-
dns2.hichina.com 47.118.199.204NOERROR, 196 ms, authoritativenoyes / yesrefused-
dns2.hichina.com 120.76.107.54NOERROR, 195 ms, authoritativenoyes / yesrefused-
dns2.hichina.com 47.118.199.214NOERROR, 210 ms, authoritativenoyes / yesrefused-
dns2.hichina.com 120.76.107.44NOERROR, 209 ms, authoritativenoyes / yesrefused-
dns2.hichina.com 2408:4009:501::10NOERROR, 205 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 18 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

warn

serial 2026081813 · primary dns1.hichina.com

Found

Primary (MNAME)
dns1.hichina.com
Contact (RNAME)
hostmaster.hichina.com
Serial
2026081813
Refresh / retry
3600 s / 1200 s
Expire
86400 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
dns1.hichina.com (120.76.107.43)2026081813
dns1.hichina.com (47.118.199.203)2026082815
dns1.hichina.com (47.118.199.213)2026082616
dns1.hichina.com (139.224.142.113)2020111612
dns1.hichina.com (39.96.153.63)2026082617
dns1.hichina.com (139.224.142.123)2026082709
dns1.hichina.com (39.96.153.43)2026082617
dns1.hichina.com (120.76.107.63)2026082617
dns1.hichina.com (2408:4009:501::9)2026081813
dns2.hichina.com (139.224.142.114)2026082709
dns2.hichina.com (139.224.142.124)2026082616
dns2.hichina.com (39.96.153.54)2026082616
dns2.hichina.com (39.96.153.44)2026082616
dns2.hichina.com (47.118.199.204)2026082616
dns2.hichina.com (120.76.107.54)2026082509
dns2.hichina.com (47.118.199.214)2026082815
dns2.hichina.com (120.76.107.44)2026082509
dns2.hichina.com (2408:4009:501::10)2026082617

Checks

  • !
    Serials differ
    The nameservers serve different versions of the zone: 2020111612 on dns1.hichina.com (139.224.142.113); 2026081813 on dns1.hichina.com (120.76.107.43), dns1.hichina.com (2408:4009:501::9); 2026082509 on dns2.hichina.com (120.76.107.54), dns2.hichina.com (120.76.107.44); 2026082616 on dns1.hichina.com (47.118.199.213), dns2.hichina.com (139.224.142.124), dns2.hichina.com (39.96.153.54), dns2.hichina.com (39.96.153.44), dns2.hichina.com (47.118.199.204); 2026082617 on dns1.hichina.com (39.96.153.63), dns1.hichina.com (39.96.153.43), dns1.hichina.com (120.76.107.63), dns2.hichina.com (2408:4009:501::10); 2026082709 on dns1.hichina.com (139.224.142.123), dns2.hichina.com (139.224.142.114); 2026082815 on dns1.hichina.com (47.118.199.203), dns2.hichina.com (47.118.199.214). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • !
    Unusual SOA timers
    expire 1d is shorter than 7d; secondaries stop answering too soon when the primary is down. Current values: refresh 1h, retry 20m, expire 1d, negative TTL 10m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.hichina.com is one of the listed nameservers.
  • ✓ Contact hostmaster@hichina.com #25
    The SOA RNAME hostmaster.hichina.com means hostmaster@hichina.com.
  • ✓ Date-based serial #26
    The serial 2026081813 follows the YYYYMMDDnn convention (2026-08-18).

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

3 records at the apex

Found

Read from
120.76.107.43:53
TypeValueTTL
SOAdns1.hichina.com. hostmaster.hichina.com. 2026082617 3600 1200 86400 600600
NSdns1.hichina.com.86400
NSdns2.hichina.com.86400

Checks

  • ✓ TTLs within range #32
    TTLs: NS 1d. The NS TTL at the parent is 2d and in the zone 1d; 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