mail.xb168.com - robtex.com

mail.xb168.com

CNAMEexmail.qq.com
DNSSEC⚠️ Not signed
NSns-cmn1.qq.com ⚠️ Not in parent delegation
A2402:4e00:111:ff4::3🇨🇳 TENCENT-NET-AP2402:4e00::/35
A42.187.235.2🇨🇳 TENCENT-NET-AP42.187.192.0/18
A43.140.54.204🇨🇳 TENCENT-NET-AP43.140.0.0/18 Tencent Cloud Computing (Beijing) Co., Ltd 309 West Zone, 3F. 49 Zhichun Road. Haidian District.
A43.142.212.27🇨🇳 TENCENT-NET-AP43.142.192.0/18
NSns-cnc1.qq.com ⚠️ Not in parent delegation
A240e:e1:aa00:2002::3🇨🇳 SHANGHAITELECOM240e:e1:a000::/36 SHIDC
A61.135.196.2🇨🇳 CHINA169-BJ61.135.196.0/24
A140.207.180.96🇨🇳 UNICOM-SHFT-IDC140.207.180.0/24 China Unicom B811&A1218, China Unicom No.21, Jin-Rong Street
A157.255.6.102🇨🇳 UNICOM-GuangZhou-IDC157.255.6.0/24
NSns-os1.qq.com ⚠️ Not in parent delegation
A2402:4e00:111:ff4::3🇨🇳 TENCENT-NET-AP2402:4e00::/35
A43.129.131.16🇸🇬 TENCENT-NET-AP-CN43.129.128.0/20
A43.130.172.23🇸🇬 TENCENT-NET-AP-CN43.130.160.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES
A43.134.249.23🇸🇬 TENCENT-NET-AP-CN43.134.224.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES
A43.159.167.10🇺🇸 TENCENT-NET-AP-CN43.159.160.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES
A43.159.167.133🇺🇸 TENCENT-NET-AP-CN43.159.160.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES
A43.166.55.3🇸🇬 TENCENT-NET-AP-CN43.166.0.0/18 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES
A203.205.220.26🇭🇰 TENCENT-NET-AP-CN203.205.220.0/23 Proxy-registered route object
NSns-tel1.qq.com ⚠️ Not in parent delegation
A240e:e1:aa00:2002::3🇨🇳 SHANGHAITELECOM240e:e1:a000::/36 SHIDC
A14.116.238.220🇨🇳 CHINANET-BACKBONE14.112.0.0/12 China Telecom Network
A49.7.250.139🇨🇳 CHINA-149.7.192.0/18 China Telecom Beijing Co. Ltd.
A101.227.161.254🇨🇳 SHANGHAITELECOM101.227.161.0/24 SHIDC

xb168.com

DNSSEC⚠️ Not signed
A152.32.135.156🇭🇰 UCLOUD-1152.32.135.0/24 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED FLAT/RM 603 6/F LAWS COMMERCIAL PLAZA 788 CHEUNG SHA WAN ROAD, KL,
NSns1.cnolnic.com ⭐
NSns2.cnolnic.com
MXmxbiz1.qq.com ⭐
MXmxbiz2.qq.com(10)
TXTv=spf1 include:spf.mail.qq.com ~all
SOAns1.cnolnic.comroot@cnolnic.net 2006-11-24 #1

Previously MX for

xb168.com

Same first word

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DNS History

6 records (1 active, 5 former)

20162017201820192020202120222023202420252026NSns-tel1.qq.comMXmxbiz1.qq.commxbiz2.qq.comA103.7.30.46CNAMEexmail.qq.comexmail.wechatos.net
○NSns-tel1.qq.com2016-05-06 → 2016-05-06 · 3 obs
● 2016-05-06 22:54:26
○ 2026-08-06 12:42:30
○ 2026-08-06 12:42:32
○MXmxbiz1.qq.com2016-02-08 → 2016-05-06 · 4 obs
● 2016-02-08 20:41:10
● 2016-05-06 22:54:26
○ 2026-08-06 12:42:30
○ 2026-08-06 12:42:32
○MXmxbiz2.qq.com2016-02-08 → 2016-05-06 · 4 obs
● 2016-02-08 20:41:10
● 2016-05-06 22:54:26
○ 2026-08-06 12:42:30
○ 2026-08-06 12:42:32
○A103.7.30.462015-06-28 → 2016-05-06 · 4 obs
● 2015-06-28 21:55:52
● 2016-05-06 22:54:26
○ 2026-08-06 12:42:30
○ 2026-08-06 12:42:32
●CNAMEexmail.qq.com2015-06-28 → 2026-08-06 · 2 obs
● 2015-06-28 21:55:52
● 2026-08-06 12:42:32
○CNAMEexmail.wechatos.net2015-11-15 → 2016-05-06 · 5 obs
○ 2015-06-28 21:55:52
● 2015-11-15 05:46:10
● 2016-05-06 22:54:26
○ 2026-08-06 12:42:30
○ 2026-08-06 12:42:32

🔍 DNS Trace

Analysis

Name Servers

The NS records for mail.xb168.com point to four name servers: ns-cmn1.qq.com, ns-cnc1.qq.com, ns-os1.qq.com and ns-tel1.qq.com.

There is at least partial name server overlap between mail.xb168.com and other domains — smtpbg251.qq.com, smstm.qq.com, dl.shuame.com and two more among them.

These name servers regularly appear alongside ns1.qq.com, ns2.qq.com, ns3.qq.com and 4 other name servers in NS record sets.

DNS names with 8 IP addresses:

ns-os1.qq.com points to 43.129.131.16, 43.130.172.23, 43.134.249.23 and 5 other IP addresses.

Host names that resolve to four IP numbers:

ns-cmn1.qq.com resolves to four IP addresses — 42.187.235.2, 43.140.54.204, 43.142.212.27 and 2402:4e00:111:ff4::3.

ns-cnc1.qq.com resolves to four IP addresses — 61.135.196.2, 140.207.180.96, 157.255.6.102 and 240e:e1:aa00:2002::3.

ns-tel1.qq.com resolves to four IP addresses — 14.116.238.220, 49.7.250.139, 101.227.161.254 and 240e:e1:aa00:2002::3.

The host names ns-os1.qq.com and ns-cmn1.qq.com both resolve to 2402:4e00:111:ff4::3 IP addresses.

The host names ns-cnc1.qq.com and ns-tel1.qq.com both resolve to 240e:e1:aa00:2002::3 IP addresses.