dr-tech.com.cn - robtex.com

dr-tech.com.cn

DNSSEC⚠️ Not signed
A182.61.51.32🇨🇳 Baidu182.61.32.0/19
NSdns.bizcn.com ⭐
A240c:4082:ffff:ff01:0:d:0:34a🇨🇳 Baidu240c:4082::/32
A61.172.183.76🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC
A61.240.129.114🇨🇳 CHINA169-Backbone61.240.128.0/19 CMI (Customer Route)
NSns1.dns.com.cn
A240c:4082:ffff:ff01:0:d:0:34a🇨🇳 Baidu240c:4082::/32
A61.172.183.70🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC
A61.240.129.114🇨🇳 CHINA169-Backbone61.240.128.0/19 CMI (Customer Route)
NSns2.dns.com.cn
A240c:4082:ffff:ff01:0:d:0:69🇨🇳 Baidu240c:4082::/32
A61.172.183.76🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC
A61.240.129.147🇨🇳 CHINA169-Backbone61.240.128.0/19 CMI (Customer Route)
MXmxw.263.net ⭐
A143.110.227.31🇺🇸 DIGITALOCEAN143.110.224.0/20 DigitalOcean
A164.92.126.242🇺🇸 DIGITALOCEAN164.92.96.0/19 DigitalOcean
MXmx.263.net(10)
A38.83.106.84🇺🇸 AS6319938.83.106.0/24 CS-34755
PTRus-mx1.263.net
A38.83.106.85🇺🇸 AS6319938.83.106.0/24 CS-34755
PTRus-mx2.263.net
A143.110.227.31🇺🇸 DIGITALOCEAN143.110.224.0/20 DigitalOcean
A164.92.126.242🇺🇸 DIGITALOCEAN164.92.96.0/19 DigitalOcean
TXTv=spf1 include:spf.263.net -all
SOAdns.bizcn.comabuse@bizcn.com serial=42

com.cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐ ⚠️ Not in parent delegation 🔒
NSb.dns.cn ⚠️ Not in parent delegation
NSc.dns.cn ⚠️ Not in parent delegation 🔒
NScns.cernet.net ⚠️ Not in parent delegation
NSd.dns.cn ⚠️ Not in parent delegation 🔒
NSe.dns.cn ⚠️ Not in parent delegation 🔒
SOAa.dns.cnroot@cnnic.cn serial=2030422549
WOT: NOT_SAFE (20/100)

Subdomains

www.dr-tech.com.cn

Same first word

dr-tech.com
dr-tech.kr
dr-tech.com.cn

Similar names

rd-tech.de
rd-tech.com
rd-tech.com.tw
rd-tech.ru
rd-tech.org
tech-dr.jp

DNS History

10 records (6 active, 4 former)

20162017201820192020202120222023202420252026NSdns.bizcn.comns1.dns.com.cnns2.dns.com.cnMXmx.263.netmxw.263.netqiye163mx01.mxmail.netease.comqiye163mx02.mxmail.netease.comA182.61.51.32182.61.55.191183.60.143.58
●NSdns.bizcn.com2018-08-16 → 2026-03-09 · 3 obs
○ 2015-06-07 09:37:50
● 2018-08-16 23:17:58
● 2026-03-09 21:32:34
●NSns1.dns.com.cn2015-06-07 → 2026-03-09 · 2 obs
● 2015-06-07 09:37:50
● 2026-03-09 21:32:34
●NSns2.dns.com.cn2015-06-07 → 2026-03-09 · 2 obs
● 2015-06-07 09:37:50
● 2026-03-09 21:32:34
●MXmx.263.net2026-03-09 → 2026-03-09 · 3 obs
○ 2018-08-16 23:17:58
● 2026-03-09 11:18:54
● 2026-03-09 21:32:34
●MXmxw.263.net2026-03-09 → 2026-03-09 · 3 obs
○ 2018-08-16 23:17:58
● 2026-03-09 11:18:54
● 2026-03-09 21:32:34
○MXqiye163mx01.mxmail.netease.com2015-06-07 → 2018-08-16 · 4 obs
● 2015-06-07 09:37:50
● 2018-08-16 23:17:58
○ 2026-03-09 11:18:54
○ 2026-03-09 21:32:34
○MXqiye163mx02.mxmail.netease.com2015-06-07 → 2018-08-16 · 4 obs
● 2015-06-07 09:37:50
● 2018-08-16 23:17:58
○ 2026-03-09 11:18:54
○ 2026-03-09 21:32:34
●A182.61.51.322026-03-09 → 2026-03-09 · 3 obs
○ 2018-08-16 23:17:58
● 2026-03-09 11:18:54
● 2026-03-09 21:32:34
○A182.61.55.1912018-08-16 → 2018-08-16 · 4 obs
○ 2016-04-23 20:44:40
● 2018-08-16 23:17:58
○ 2026-03-09 11:18:54
○ 2026-03-09 21:32:34
○A183.60.143.582015-06-07 → 2016-04-23 · 4 obs
● 2015-06-07 09:37:50
● 2016-04-23 20:44:40
○ 2018-08-16 23:17:58
○ 2026-03-09 21:32:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cnb.dns.cn, e.dns.cn, a.dns.cn, c.dns.cn...-
dr-tech.com.cnns1.dns.com.cn, ns2.dns.com.cn6 records

✅ Authoritative Response

Server: 61.240.129.114

NS records: ns1.dns.com.cn, ns2.dns.com.cn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dr-tech.com.cn (unsigned zone)

⏱️ Timing

Total: 1420ms | Queries: -

📄 Records

TypeCountSample Data
A1182.61.51.32
NS2ns2.dns.com.cn, ns1.dns.com.cn
MX2mx.263.net (pri: 10), mxw.263.net (pri: 5)
TXT1v=spf1 include:spf.263.net -all
SOA1dns.bizcn.com abuse.bizcn.com

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.dns.com.cn, ns1.dns.com.cn, ns1.dns.com.cn...)

Analysis

Hierarchy

dr-tech.com.cn is the parent of www.dr-tech.com.cn.

IP Addresses

dr-tech.com.cn resolves to one IP number: 182.61.51.32.

Other host names, for instance www.dr-tech.com.cn, share IP numbers with dr-tech.com.cn.

Name Servers

dr-tech.com.cn is delegated to three name servers dns.bizcn.com, ns1.dns.com.cn and ns2.dns.com.cn.

dr-tech.com.cn at least partially shares name servers with other domains, for instance jchscm.com, liray.net, 365bit.com, forestarchem.com and jn54.org.cn.

Name servers commonly used together include ns7.cnmsn.net, ns8.cnmsn.net, ns13.dns.com.cn, ns14.dns.com.cn, dns.cnmsn.net, ns5.cnmsn.net, ns6.cnmsn.net, ns1.4everdns.com and ns2.4everdns.com.

Names with three IPs:

dns.bizcn.com points to: 240c:4082:ffff:ff01:0:d:0:34a, 61.172.183.76 and 61.240.129.114.

ns1.dns.com.cn points to: 240c:4082:ffff:ff01:0:d:0:34a, 61.172.183.70 and 61.240.129.114.

ns2.dns.com.cn points to: 240c:4082:ffff:ff01:0:d:0:69, 61.172.183.76 and 61.240.129.147.

Names that point to 240c:4082:ffff:ff01:0:d:0:34a: dns.bizcn.com and ns1.dns.com.cn.

Names that point to 61.172.183.76: dns.bizcn.com and ns2.dns.com.cn.

Names that point to 61.240.129.114: dns.bizcn.com and ns1.dns.com.cn.

Mail Servers

Two mail servers handle dr-tech.com.cn: mx.263.net and mxw.263.net.

dr-tech.com.cn shares the same mail server setup as other domains, for instance goodhopevisa.com, xuliantai.com, shengxinmetal.com, 263ai.com and nbp.com.cn.

dr-tech.com.cn shares some mail servers with other domains, at least partially, for example tiangen.top and powerlon.cn.

Hosts with four IPs:

mx.263.net points to: 38.83.106.84, 38.83.106.85, 143.110.227.31 and 164.92.126.242.

Hosts with two IPs:

mxw.263.net points to: 143.110.227.31 and 164.92.126.242.

Hosts pointing to 143.110.227.31: mx.263.net and mxw.263.net.

Hosts pointing to 164.92.126.242: mx.263.net and mxw.263.net.