qcloud.com

Checked 22 October 2026, 10:22 UTC · via 8.8.8.8
✗Problems found
22 passed 3 warnings 2 failed 4 info

Registration

info

.com generic · MarkMonitor Information Technology (Shanghai) Co., Ltd. · expires 2034-07-24

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Information Technology (Shanghai) Co., Ltd.
Registered
24 July 2003
Last changed
5 February 2026
Expires
24 July 2034
Status
client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
ns1.qq.com, ns2.qq.com, ns3.qq.com, ns4.qq.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 2034-07-24 #3
    The registration is valid until 2034-07-24 (2832 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns1.qq.com, ns2.qq.com, ns3.qq.com, ns4.qq.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.qq.com, ns2.qq.com, ns3.qq.com, ns4.qq.com
NS in the zone
ns1.qq.com, ns2.qq.com, ns3.qq.com, ns4.qq.com
NameserverAddressesNetwork (AS)Glue
ns1.qq.com112.90.13.140 183.60.116.2 180.153.217.98 43.166.55.2 203.205.220.251 2402:4e00:c050:7a00::3AS136958 UNICOM-GuangZhou-IDC - China Unicom Guangdong IP network, CN AS4134 CHINANET-BACKBONE - No.31,Jin-rong Street, CN AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group), CN AS132203 TENCENT-NET-AP-CN - Tencent Building, Kejizhongyi Avenue, CN AS132203 TENCENT-NET-AP-CN - Tencent Building, Kejizhongyi Avenue, CN AS45090 TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited, CN112.90.13.140 180.153.217.98 183.60.116.2 203.205.220.251 2402:4e00:c050:7a00::3 43.166.55.2
ns2.qq.com1.12.96.10 43.159.167.132 43.129.131.210 49.7.250.140 240e:974:e600:3ee::2AS45090 TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited, CN AS132203 TENCENT-NET-AP-CN - Tencent Building, Kejizhongyi Avenue, CN AS132203 TENCENT-NET-AP-CN - Tencent Building, Kejizhongyi Avenue, CN AS23724 CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation, CN AS38283 CHINANET-SCIDC-AS-AP - CHINANET SiChuan Telecom Internet Data Center, CN1.12.96.10 240e:974:e600:3ee::2 43.129.131.210 43.159.167.132 49.7.250.140
ns3.qq.com120.233.255.187 43.159.167.11 43.134.249.22 120.204.7.98AS9808 CHINAMOBILE-CN - China Mobile Communications Group Co., Ltd., CN AS132203 TENCENT-NET-AP-CN - Tencent Building, Kejizhongyi Avenue, CN AS132203 TENCENT-NET-AP-CN - Tencent Building, Kejizhongyi Avenue, CN AS9808 CHINAMOBILE-CN - China Mobile Communications Group Co., Ltd., CN120.204.7.98 120.233.255.187 43.134.249.22 43.159.167.11
ns4.qq.com61.135.196.3 183.60.116.5 43.130.172.24 43.161.3.25 116.169.38.235AS4808 CHINA169-BJ - China Unicom Beijing Province Network, CN AS4134 CHINANET-BACKBONE - No.31,Jin-rong Street, CN AS132203 TENCENT-NET-AP-CN - Tencent Building, Kejizhongyi Avenue, CN AS132203 TENCENT-NET-AP-CN - Tencent Building, Kejizhongyi Avenue, CN AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone, CN116.169.38.235 183.60.116.5 43.130.172.24 43.161.3.25 61.135.196.3

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.qq.com, ns2.qq.com, ns3.qq.com, ns4.qq.com.
  • ✓ 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 16 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 10 autonomous systems #11
    The nameservers are spread over: AS132203 (TENCENT-NET-AP-CN - Tencent Building, Kejizhongyi Avenue, CN): 8 addresses; AS136958 (UNICOM-GuangZhou-IDC - China Unicom Guangdong IP network, CN): 1 address; AS23724 (CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation, CN): 1 address; AS38283 (CHINANET-SCIDC-AS-AP - CHINANET SiChuan Telecom Internet Data Center, CN): 1 address; AS4134 (CHINANET-BACKBONE - No.31,Jin-rong Street, CN): 2 addresses; AS45090 (TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited, CN): 2 addresses; AS4808 (CHINA169-BJ - China Unicom Beijing Province Network, CN): 1 address; AS4811 (CHINANET-SHANGHAI-MAN - China Telecom (Group), CN): 1 address; AS4837 (CHINA169-Backbone - CHINA UNICOM China169 Backbone, CN): 1 address; AS9808 (CHINAMOBILE-CN - China Mobile Communications Group Co., Ltd., CN): 2 addresses.
  • 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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns3.qq.com, ns4.qq.com.
    #13

Nameservers

fail

19 of 20 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.qq.com 112.90.13.140NOERROR, 248 ms, authoritativenono / yesrefused-
ns1.qq.com 183.60.116.2NOERROR, 196 ms, authoritativenono / yesrefused-
ns1.qq.com 180.153.217.98NOERROR, 187 ms, authoritativenoyes / yesrefused-
ns1.qq.com 43.166.55.2NOERROR, 293 ms, authoritativenoyes / yesrefused-
ns1.qq.com 203.205.220.251NOERROR, 250 ms, authoritativenoyes / yesrefused-
ns1.qq.com 2402:4e00:c050:7a00::3NOERROR, 139 ms, authoritativenono / yesrefused-
ns2.qq.com 1.12.96.10NOERROR, 192 ms, authoritativenono / yesrefused-
ns2.qq.com 43.159.167.132NOERROR, 160 ms, authoritativenoyes / yesrefused-
ns2.qq.com 43.129.131.210NOERROR, 261 ms, authoritativenoyes / yesrefused-
ns2.qq.com 49.7.250.140NOERROR, 140 ms, authoritativenoyes / yesrefused-
ns2.qq.com 240e:974:e600:3ee::2NOERROR, 213 ms, authoritativenono / yesrefused-
ns3.qq.com 120.233.255.187NOERROR, 227 ms, authoritativenoyes / yesrefused-
ns3.qq.com 43.159.167.11NOERROR, 158 ms, authoritativenoyes / yesrefused-
ns3.qq.com 43.134.249.22NOERROR, 161 ms, authoritativenoyes / yesrefused-
ns3.qq.com 120.204.7.98NOERROR, 191 ms, authoritativenono / yesrefused-
ns4.qq.com 61.135.196.3NOERROR, 135 ms, authoritativenoyes / yesrefused-
ns4.qq.com 183.60.116.5no responsenono / no--
ns4.qq.com 43.130.172.24NOERROR, 100 ms, authoritativenoyes / yesrefused-
ns4.qq.com 43.161.3.25NOERROR, 264 ms, authoritativenoyes / yesrefused-
ns4.qq.com 116.169.38.235NOERROR, 213 ms, authoritativenoyes / yesrefused-

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: ns4.qq.com (183.60.116.5): read udp 46.225.38.91:41425->183.60.116.5:53: i/o timeout.
    #14
  • ✓ 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: ns1.qq.com (112.90.13.140): dial tcp 112.90.13.140:53: i/o timeout; ns1.qq.com (183.60.116.2): dial tcp 183.60.116.2:53: i/o timeout; ns1.qq.com (2402:4e00:c050:7a00::3): dial tcp [2402:4e00:c050:7a00::3]:53: i/o timeout; ns2.qq.com (1.12.96.10): dial tcp 1.12.96.10:53: i/o timeout; ns2.qq.com (240e:974:e600:3ee::2): dial tcp [240e:974:e600:3ee::2]:53: i/o timeout; ns3.qq.com (120.204.7.98): dial tcp 120.204.7.98:53: i/o timeout.
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

warn

serial 1330653999 · primary ns1.qq.com

Found

Primary (MNAME)
ns1.qq.com
Contact (RNAME)
webmaster.qq.com
Serial
1330653999
Refresh / retry
300 s / 600 s
Expire
86400 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.qq.com (112.90.13.140)1330653999
ns1.qq.com (183.60.116.2)1330653999
ns1.qq.com (180.153.217.98)1330653999
ns1.qq.com (43.166.55.2)1330653999
ns1.qq.com (203.205.220.251)1330653999
ns1.qq.com (2402:4e00:c050:7a00::3)1330653999
ns2.qq.com (1.12.96.10)1330653999
ns2.qq.com (43.159.167.132)1330653999
ns2.qq.com (43.129.131.210)1330653999
ns2.qq.com (49.7.250.140)1330653999
ns2.qq.com (240e:974:e600:3ee::2)1330653999
ns3.qq.com (120.233.255.187)1330653999
ns3.qq.com (43.159.167.11)1330653999
ns3.qq.com (43.134.249.22)1330653999
ns3.qq.com (120.204.7.98)1330653999
ns4.qq.com (61.135.196.3)1330653999
ns4.qq.com (43.130.172.24)1330653999
ns4.qq.com (43.161.3.25)1330653999
ns4.qq.com (116.169.38.235)1330653999

Checks

  • ✓ Serial 1330653999 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 5m is outside 20m–1d; retry 10m should be shorter than refresh 5m; expire 1d is shorter than 7d; secondaries stop answering too soon when the primary is down. Current values: refresh 5m, retry 10m, expire 1d, negative TTL 1d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.qq.com is one of the listed nameservers.
  • ✓ Contact webmaster@qq.com #25
    The SOA RNAME webmaster.qq.com means webmaster@qq.com.
  • ✓ Timestamp serial #26
    The serial 1330653999 is a Unix timestamp (2012-03-02 02:06 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

warn

7 records at the apex

Found

Read from
112.90.13.140:53
TypeValueTTL
SOAns1.qq.com. webmaster.qq.com. 1330653999 300 600 86400 8640086400
NSns4.qq.com.86400
NSns1.qq.com.86400
NSns2.qq.com.86400
NSns3.qq.com.86400
A43.140.1.158120
TXT"_globalsign-domain-verification=lk2FZiiE65_tFrHFraLku4iCV-pL_u1YFZeHaj5TF7"600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (2m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1d; resolvers may use either.
    #32
  • ✓ 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