polytech.cn - dns.ninja

polytech.cn

DNSSEC⚠️ Not signed
A118.193.37.94🇭🇰 UCLOUD-1118.193.37.0/24 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED FLAT/RM 603 6/F LAWS COMMERCIAL PLAZA 788 CHEUNG SHA WAN ROAD, KL,
A152.32.171.65🇭🇰 UCLOUD-1152.32.171.0/24 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED FLAT/RM 603 6/F LAWS COMMERCIAL PLAZA 788 CHEUNG SHA WAN ROAD, KL,
A154.85.60.150🇺🇸 BAIDU-1154.85.56.0/21 AS55967
NSpk3.22.cn ⚠️ Not in zone NS records
A39.101.68.48🇨🇳 Alibaba-Cloud39.100.0.0/14 CT BeiJing IDC
NSpk4.22.cn ⚠️ Not in zone NS records
A39.101.68.48🇨🇳 Alibaba-Cloud39.100.0.0/14 CT BeiJing IDC

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn 2035-12-03 #83

Subdomains

mail.polytech.cn

Same first word

polytech.net
polytech.com.sa
polytech.cn
polytech.si
polytech.com.br
polytech.ac.nz
polytech.name
polytech.com.cn
polytech.com.mx
polytech.parts
polytech.one
polytech.at
polytech.fr
polytech.hu
polytech.us
polytech.no
polytech.am
polytech.co.za
polytech.tj
polytech.net.cn
polytech.org
polytech.com.au
polytech.com.ar
polytech.ru
polytech.ca
polytech.com.sg
polytech.com.tr
polytech.ch
polytech.mg
polytech.dk
polytech.su
polytech.be
polytech.cv.ua
polytech.co.th
polytech.com
polytech.mobi
polytech.com.ua
polytech.com.gr
polytech.ivanovo.su
polytech.com.my
polytech.dyndns.ws
polytech.pl
polytech.de
polytech.qa
polytech.software
polytech.biz
polytech.in
polytech.kz

Similar names

techpoly.com
ploytech.click
techpoly.co.jp
techploy.com
pylotech.com
phytocel.com
techoply.com
plyotech.com
ploytech.com
ploytech.cn

DNS History

13 records (5 active, 8 former)

20162017201820192020202120222023202420252026NSpk3.22.cnpk4.22.cnns.dns.net.cnns20.dns.net.cnns7.dns.net.cnMXmail.polytech.cnmx.exmail.sina.comA118.193.37.94152.32.171.65154.85.60.150103.218.240.184118.193.33.22058.221.42.141
○NSns.dns.net.cn2015-08-18 → 2017-04-21 · 7 obs
● 2015-08-18 03:41:28
● 2015-12-08 16:56:00
○ 2016-01-25 07:35:06
● 2016-04-12 00:45:46
● 2017-04-21 09:15:28
○ 2026-03-04 12:05:28
○ 2026-08-01 11:31:32
○NSns20.dns.net.cn2015-08-18 → 2017-04-21 · 4 obs
● 2015-08-18 03:41:28
● 2017-04-21 09:15:28
○ 2026-03-04 12:05:28
○ 2026-08-01 11:31:32
○NSns7.dns.net.cn2015-08-18 → 2017-04-21 · 7 obs
● 2015-08-18 03:41:28
○ 2015-12-08 16:56:00
● 2016-01-25 07:35:06
○ 2016-04-12 00:45:46
● 2017-04-21 09:15:28
○ 2026-03-04 12:05:28
○ 2026-08-01 11:31:32
●NSpk3.22.cn2026-03-04 → 2026-08-01 · 3 obs
○ 2017-04-21 09:15:28
● 2026-03-04 12:05:28
● 2026-08-01 11:31:32
●NSpk4.22.cn2026-03-04 → 2026-08-01 · 3 obs
○ 2017-04-21 09:15:28
● 2026-03-04 12:05:28
● 2026-08-01 11:31:32
○MXmail.polytech.cn2017-04-21 → 2017-04-21 · 4 obs
○ 2016-04-12 00:45:46
● 2017-04-21 09:15:28
○ 2026-03-04 12:05:28
○ 2026-08-01 11:31:32
○MXmx.exmail.sina.com2015-08-18 → 2016-04-12 · 4 obs
● 2015-08-18 03:41:28
● 2016-04-12 00:45:46
○ 2017-04-21 09:15:28
○ 2026-08-01 11:31:32
○A103.218.240.1842026-03-04 → 2026-03-23 · 7 obs
○ 2017-04-21 09:15:28
● 2026-03-04 12:05:28
● 2026-03-18 14:10:00
○ 2026-03-23 02:21:52
● 2026-03-23 23:35:36
○ 2026-07-24 19:01:02
○ 2026-08-01 11:31:32
○A118.193.33.2202026-03-04 → 2026-03-23 · 7 obs
○ 2017-04-21 09:15:28
● 2026-03-04 12:05:28
● 2026-03-18 14:10:00
○ 2026-03-23 02:21:52
● 2026-03-23 23:35:36
○ 2026-07-24 19:01:02
○ 2026-08-01 11:31:32
●A118.193.37.942026-03-04 → 2026-08-01 · 8 obs
○ 2017-04-21 09:15:28
● 2026-03-04 12:05:28
● 2026-03-18 14:10:00
○ 2026-03-23 02:21:52
● 2026-03-23 23:35:36
○ 2026-07-24 19:01:02
● 2026-08-01 11:31:30
● 2026-08-01 11:31:32
●A152.32.171.652026-03-04 → 2026-08-01 · 8 obs
○ 2017-04-21 09:15:28
● 2026-03-04 12:05:28
● 2026-03-18 14:10:00
○ 2026-03-23 02:21:52
● 2026-03-23 23:35:36
○ 2026-07-24 19:01:02
● 2026-08-01 11:31:30
● 2026-08-01 11:31:32
●A154.85.60.1502026-03-04 → 2026-08-01 · 8 obs
○ 2017-04-21 09:15:28
● 2026-03-04 12:05:28
● 2026-03-18 14:10:00
○ 2026-03-23 02:21:52
● 2026-03-23 23:35:36
○ 2026-07-24 19:01:02
● 2026-08-01 11:31:30
● 2026-08-01 11:31:32
○A58.221.42.1412015-08-18 → 2017-04-21 · 4 obs
● 2015-08-18 03:41:28
● 2017-04-21 09:15:28
○ 2026-03-04 12:05:28
○ 2026-08-01 11:31:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
polytech.cnpk3.22.cn, pk4.22.cn-

✅ Authoritative Response

Server:39.101.68.48

NS records: pk3.22.cn, pk4.22.cn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for polytech.cn (unsigned zone)

⏱️ Timing

Total: 4887ms | Queries: -

📄 Records

TypeCountSample Data
A3154.85.60.150, 118.193.37.94...

Analysis

Hierarchy

mail.polytech.cn is delegated beneath polytech.cn.

IP Addresses

polytech.cn directs to three IP numbers: 118.193.37.94, 152.32.171.65 and 154.85.60.150.

Among the host names that share IP numbers with polytech.cn are legsp.cn, maisha.cn, tunniao.com and two others.

Name Servers

polytech.cn has two authoritative name servers — pk3.22.cn and pk4.22.cn.

polytech.cn has the same name server delegation as a number of other domains, such as bewld.com, zhadai.cn, gnx.cn and two more.

The name servers for polytech.cn overlap at least partially with those of other domains — for example clouddcn.com.

These name servers frequently co-occur with the name servers ns1.afternic.com and ns2.afternic.com.

pk3.22.cn and pk4.22.cn each point to one IP address — 39.101.68.48.

The host names pk3.22.cn and pk4.22.cn both resolve to 39.101.68.48 IP addresses.