mail.pretops.com - robtex.com

mail.pretops.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 chinanet/CN2 TianJin province network
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
A125.39.202.12🇨🇳 CHINA169-Backbone125.36.0.0/14 CNC Group CHINA169 Tianjin Province Network
PTRno-data
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
A49.51.76.46🇺🇸 TENCENT-NET-AP-CN49.51.76.0/23 Proxy-registered route object
A170.106.32.16🇺🇸 TENCENT-NET-AP-CN170.106.32.0/22 Proxy-registered route object
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

pretops.com

DNSSEC⚠️ Not signed
A210.22.145.66🇨🇳 CNCGROUP-SH210.22.128.0/18 China Unicom B811&A1218, China Unicom No.21, Jin-Rong Street
NSdns31.hichina.com ⭐
NSdns32.hichina.com
MXmxbiz1.qq.com ⭐
MXmxbiz2.qq.com(10)
SOAdns31.hichina.comhostmaster@hichina.com 2026-01-12 #9

Previously MX for

pretops.com

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A222.73.4.178CNAMEexmail.qq.com
○A222.73.4.1782015-07-02 → 2016-06-23 · 4 obs
● 2015-07-02 07:09:16
● 2016-06-23 00:03:06
○ 2026-02-21 16:34:36
○ 2026-03-22 16:33:48
●CNAMEexmail.qq.com2026-02-21 → 2026-03-22 · 2 obs
● 2026-02-21 16:34:36
● 2026-03-22 16:33:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comd.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net...-
pretops.comdns31.hichina.com, dns32.hichina.com18 records

✅ Authoritative Response

Server: 120.76.107.37

NS records: dns31.hichina.com, dns32.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pretops.com (unsigned zone)

⏱️ Timing

Total: 3570ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1exmail.qq.com

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns31.hichina.com, dns31.hichina.com, dns31.hichina.com...)

Analysis

Name Servers

mail.pretops.com is delegated to four name servers: ns-cmn1.qq.com, ns-cnc1.qq.com, ns-os1.qq.com and ns-tel1.qq.com.

mail.pretops.com at least partially shares name servers with other domains, for instance smtpbg272.qq.com, video-2890862992.qzone.qq.com, lldlf.cn, c.weiapp.qq.com and qiqi-jin.qq.com.

these name servers are often used together with ns1.qq.com, ns2.qq.com, ns3.qq.com and ns4.qq.com.

Ten IPs for ns-os1.qq.com: 2402:4e00:111:ff4::3, 43.129.131.16, 43.130.172.23, 43.134.249.23, 43.159.167.10, 43.159.167.133, 43.166.55.3, 49.51.76.46, 170.106.32.16, 203.205.220.26.

Four IPs for ns-cmn1.qq.com: 2402:4e00:111:ff4::3, 42.187.235.2, 43.140.54.204, 43.142.212.27.

Four IPs for ns-cnc1.qq.com: 240e:e1:aa00:2002::3, 125.39.202.12, 140.207.180.96, 157.255.6.102.

Four IPs for ns-tel1.qq.com: 240e:e1:aa00:2002::3, 14.116.238.220, 49.7.250.139, 101.227.161.254.

Names pointing to 2402:4e00:111:ff4::3: ns-os1.qq.com, ns-cmn1.qq.com.

Names pointing to 240e:e1:aa00:2002::3: ns-cnc1.qq.com, ns-tel1.qq.com.