weikeguanjia.com

Checked 22 October 2026, 11:25 UTC · via 8.8.8.8
✗Problems found
20 passed 3 warnings 1 failed 7 info

Registration

info

.com generic · Alibaba Cloud Computing (Beijing) Co., Ltd. · expires 2026-12-25

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Registered
25 December 2017
Last changed
30 October 2025
Expires
25 December 2026
Status
active
Registry nameservers
dns27.hichina.com, dns28.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 2026-12-25 #3
    The registration is valid until 2026-12-25 (64 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

dns27.hichina.com, dns28.hichina.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns27.hichina.com, dns28.hichina.com
NS in the zone
dns27.hichina.com, dns28.hichina.com
NameserverAddressesNetwork (AS)Glue
dns27.hichina.com39.96.153.59 120.76.107.59 39.96.153.39 47.118.199.219 139.224.142.99 139.224.142.109 47.118.199.199 120.76.107.39 2408:4009:501::35AS37963 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::35 39.96.153.39 39.96.153.59 47.118.199.199 47.118.199.219
dns28.hichina.com139.224.142.102 139.224.142.107 47.118.199.221 47.118.199.197 120.76.107.62 39.96.153.37 39.96.153.62 120.76.107.37 2408:4009:501::36AS37963 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::36 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: dns27.hichina.com, dns28.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

fail

18 of 18 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns27.hichina.com 39.96.153.59NOERROR, 153 ms, authoritativenoyes / yesrefused-
dns27.hichina.com 120.76.107.59NOERROR, 197 ms, authoritativenoyes / yesrefused-
dns27.hichina.com 39.96.153.39NOERROR, 163 ms, authoritativenoyes / yesrefused-
dns27.hichina.com 47.118.199.219NOERROR, 197 ms, authoritativenoyes / yesrefused-
dns27.hichina.com 139.224.142.99NOERROR, 200 ms, authoritativenoyes / yesrefused-
dns27.hichina.com 139.224.142.109NOERROR, 173 ms, authoritativenoyes / yesrefused-
dns27.hichina.com 47.118.199.199NOERROR, 219 ms, authoritativenoyes / yesrefused-
dns27.hichina.com 120.76.107.39NOERROR, 213 ms, authoritativenoyes / yesrefused-
dns27.hichina.com 2408:4009:501::35NOERROR, 214 ms, authoritativenono / yesrefused-
dns28.hichina.com 139.224.142.102NOERROR, 173 ms, authoritativenoyes / yesrefused-
dns28.hichina.com 139.224.142.107NOERROR, 191 ms, authoritativenoyes / yesrefused-
dns28.hichina.com 47.118.199.221NOERROR, 232 ms, authoritativenoyes / yesrefused-
dns28.hichina.com 47.118.199.197NOERROR, 176 ms, authoritativenoyes / yesrefused-
dns28.hichina.com 120.76.107.62NOERROR, 211 ms, authoritativenoyes / yesrefused-
dns28.hichina.com 39.96.153.37NOERROR, 163 ms, authoritativenoyes / yesrefused-
dns28.hichina.com 39.96.153.62NOERROR, 160 ms, authoritativenoyes / yesrefused-
dns28.hichina.com 120.76.107.37NOERROR, 215 ms, authoritativenoyes / yesrefused-
dns28.hichina.com 2408:4009:501::36NOERROR, 198 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.
  • ✗
    No DNS over TCP
    DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: dns27.hichina.com (2408:4009:501::35): read tcp [2a01:4f8:1c1c:eebf::1]:35268->[2408:4009:501::35]:53: i/o timeout.
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

warn

serial 2026082616 · primary dns27.hichina.com

Found

Primary (MNAME)
dns27.hichina.com
Contact (RNAME)
hostmaster.hichina.com
Serial
2026082616
Refresh / retry
3600 s / 1200 s
Expire
86400 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
dns27.hichina.com (39.96.153.59)2026082616
dns27.hichina.com (120.76.107.59)2026082617
dns27.hichina.com (39.96.153.39)2026082616
dns27.hichina.com (47.118.199.219)2026082616
dns27.hichina.com (139.224.142.99)2017122522
dns27.hichina.com (139.224.142.109)2026082709
dns27.hichina.com (47.118.199.199)2026082815
dns27.hichina.com (120.76.107.39)2026082616
dns27.hichina.com (2408:4009:501::35)2026082617
dns28.hichina.com (139.224.142.102)2026082709
dns28.hichina.com (139.224.142.107)2026082509
dns28.hichina.com (47.118.199.221)2026082815
dns28.hichina.com (47.118.199.197)2026082815
dns28.hichina.com (120.76.107.62)2026082617
dns28.hichina.com (39.96.153.37)2026082616
dns28.hichina.com (39.96.153.62)2026082617
dns28.hichina.com (120.76.107.37)2026081813
dns28.hichina.com (2408:4009:501::36)2026082509

Checks

  • !
    Serials differ
    The nameservers serve different versions of the zone: 2017122522 on dns27.hichina.com (139.224.142.99); 2026081813 on dns28.hichina.com (120.76.107.37); 2026082509 on dns28.hichina.com (139.224.142.107), dns28.hichina.com (2408:4009:501::36); 2026082616 on dns27.hichina.com (39.96.153.59), dns27.hichina.com (39.96.153.39), dns27.hichina.com (47.118.199.219), dns27.hichina.com (120.76.107.39), dns28.hichina.com (39.96.153.37); 2026082617 on dns27.hichina.com (120.76.107.59), dns27.hichina.com (2408:4009:501::35), dns28.hichina.com (120.76.107.62), dns28.hichina.com (39.96.153.62); 2026082709 on dns27.hichina.com (139.224.142.109), dns28.hichina.com (139.224.142.102); 2026082815 on dns27.hichina.com (47.118.199.199), dns28.hichina.com (47.118.199.221), dns28.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 dns27.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 2026082616 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

7 records at the apex

Found

Read from
39.96.153.59:53
TypeValueTTL
SOAdns27.hichina.com. hostmaster.hichina.com. 2026082616 3600 1200 86400 600600
NSdns27.hichina.com.86400
NSdns28.hichina.com.86400
A203.107.45.167600
MX5 mxn.mxhichina.com.600
MX10 mxw.mxhichina.com.600
TXT"v=spf1 include:spf.mxhichina.com -all"600

Checks

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