ahcgyy120.com

Checked 22 October 2026, 07:41 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 2027-03-23

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Registered
23 March 2018
Last changed
23 March 2026
Expires
23 March 2027
Status
active
Registry nameservers
dns25.hichina.com, dns26.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 2027-03-23 #3
    The registration is valid until 2027-03-23 (151 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

dns25.hichina.com, dns26.hichina.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns25.hichina.com, dns26.hichina.com
NS in the zone
dns25.hichina.com, dns26.hichina.com
NameserverAddressesNetwork (AS)Glue
dns25.hichina.com47.118.199.199 139.224.142.99 39.96.153.59 120.76.107.39 39.96.153.39 47.118.199.219 120.76.107.59 139.224.142.109 2408:4009:501::33AS37963 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., CN120.76.107.39 120.76.107.59 139.224.142.109 139.224.142.99 2408:4009:501::33 39.96.153.39 39.96.153.59 47.118.199.199 47.118.199.219
dns26.hichina.com47.118.199.197 120.76.107.37 39.96.153.37 47.118.199.221 120.76.107.62 39.96.153.62 139.224.142.107 139.224.142.102 2408:4009:501::34AS37963 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., CN120.76.107.37 120.76.107.62 139.224.142.102 139.224.142.107 2408:4009:501::34 39.96.153.37 39.96.153.62 47.118.199.197 47.118.199.221

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns25.hichina.com, dns26.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
dns25.hichina.com 47.118.199.199NOERROR, 227 ms, authoritativenoyes / yesrefused-
dns25.hichina.com 139.224.142.99NOERROR, 210 ms, authoritativenoyes / yesrefused-
dns25.hichina.com 39.96.153.59NOERROR, 140 ms, authoritativenoyes / yesrefused-
dns25.hichina.com 120.76.107.39NOERROR, 201 ms, authoritativenoyes / yesrefused-
dns25.hichina.com 39.96.153.39NOERROR, 141 ms, authoritativenoyes / yesrefused-
dns25.hichina.com 47.118.199.219NOERROR, 206 ms, authoritativenoyes / yesrefused-
dns25.hichina.com 120.76.107.59NOERROR, 209 ms, authoritativenoyes / yesrefused-
dns25.hichina.com 139.224.142.109NOERROR, 170 ms, authoritativenoyes / yesrefused-
dns25.hichina.com 2408:4009:501::33NOERROR, 204 ms, authoritativenoyes / yesrefused-
dns26.hichina.com 47.118.199.197NOERROR, 209 ms, authoritativenoyes / yesrefused-
dns26.hichina.com 120.76.107.37NOERROR, 214 ms, authoritativenoyes / yesrefused-
dns26.hichina.com 39.96.153.37NOERROR, 156 ms, authoritativenoyes / yesrefused-
dns26.hichina.com 47.118.199.221NOERROR, 195 ms, authoritativenoyes / yesrefused-
dns26.hichina.com 120.76.107.62NOERROR, 200 ms, authoritativenoyes / yesrefused-
dns26.hichina.com 39.96.153.62NOERROR, 151 ms, authoritativenoyes / yesrefused-
dns26.hichina.com 139.224.142.107NOERROR, 165 ms, authoritativenoyes / yesrefused-
dns26.hichina.com 139.224.142.102NOERROR, 199 ms, authoritativenoyes / yesrefused-
dns26.hichina.com 2408:4009:501::34NOERROR, 215 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 2026082617 · primary dns25.hichina.com

Found

Primary (MNAME)
dns25.hichina.com
Contact (RNAME)
hostmaster.hichina.com
Serial
2026082617
Refresh / retry
3600 s / 1200 s
Expire
86400 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
dns25.hichina.com (47.118.199.199)2026082617
dns25.hichina.com (139.224.142.99)2026082509
dns25.hichina.com (39.96.153.59)2026082617
dns25.hichina.com (120.76.107.39)2026082617
dns25.hichina.com (39.96.153.39)2026082616
dns25.hichina.com (47.118.199.219)2026082616
dns25.hichina.com (120.76.107.59)2026081813
dns25.hichina.com (139.224.142.109)2026082616
dns25.hichina.com (2408:4009:501::33)2026082616
dns26.hichina.com (47.118.199.197)2026082815
dns26.hichina.com (120.76.107.37)2026082509
dns26.hichina.com (39.96.153.37)2026082617
dns26.hichina.com (47.118.199.221)2026082616
dns26.hichina.com (120.76.107.62)2026082616
dns26.hichina.com (39.96.153.62)2026082616
dns26.hichina.com (139.224.142.107)2026082509
dns26.hichina.com (139.224.142.102)2026082709
dns26.hichina.com (2408:4009:501::34)2026082617

Checks

  • !
    Serials differ
    The nameservers serve different versions of the zone: 2026081813 on dns25.hichina.com (120.76.107.59); 2026082509 on dns25.hichina.com (139.224.142.99), dns26.hichina.com (120.76.107.37), dns26.hichina.com (139.224.142.107); 2026082616 on dns25.hichina.com (39.96.153.39), dns25.hichina.com (47.118.199.219), dns25.hichina.com (139.224.142.109), dns25.hichina.com (2408:4009:501::33), dns26.hichina.com (47.118.199.221), dns26.hichina.com (120.76.107.62), dns26.hichina.com (39.96.153.62); 2026082617 on dns25.hichina.com (47.118.199.199), dns25.hichina.com (39.96.153.59), dns25.hichina.com (120.76.107.39), dns26.hichina.com (39.96.153.37), dns26.hichina.com (2408:4009:501::34); 2026082709 on dns26.hichina.com (139.224.142.102); 2026082815 on dns26.hichina.com (47.118.199.197). 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 dns25.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 2026082617 follows the YYYYMMDDnn convention (2026-08-26).

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

4 records at the apex

Found

Read from
47.118.199.199:53
TypeValueTTL
SOAdns25.hichina.com. hostmaster.hichina.com. 2026082616 3600 1200 86400 600600
NSdns25.hichina.com.86400
NSdns26.hichina.com.86400
A47.101.54.125600

Checks

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