`std.cn`

DNSSEC	⚠️ Not signed
A	27.223.85.2^{🇨🇳 CHINA169-Backbone27.192.0.0/11 China Unicom Shandong Province Network}
NS	`dns1.hichina.com` ⭐
		A	2408:4009:501::9^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.43^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.63^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.203^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.213^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.43^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.63^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.113^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.123^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns2.hichina.com`
		A	2408:4009:501::10^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.44^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.54^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.204^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.214^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.44^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.54^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.114^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.124^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
MX	`hzmx01.mxmail.netease.com` ⭐
MX	`hzmx02.mxmail.netease.com`⁽²⁾
		A	47.251.71.119^{🇺🇸 Alibaba-Cloud47.251.0.0/17 Proxy-registered route object}
		A	47.251.84.126^{🇺🇸 Alibaba-Cloud47.251.0.0/17 Proxy-registered route object}
TXT	`v=spf1 include:spf.qiye.163.com -all`
SOA	`dns1.hichina.com`hostmaster@hichina.com 2026-06-04 #13

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn 2035-03-01 #12

Subdomains

www.std.cn

Same first word

std.best

std.com.sg

std.co.th

std.it

std.lv

std.com.ua

std.io

std.me

std.com.ar

std.org

std.lt

std.at

std.co.za

std.net

std.hk

std.co.uk

std.priv.at

std.nagoya

std.su

std.fi

std.ae

std.hr

std.com.au

std.kr

std.in

std.com.pk

std.sk

std.com.cn

std.cn

std.cl

std.ie

std.guide

std.org.tr

std.systems

std.com.br

std.rs

std.fyi

std.ru

std.ch

std.dk

std.mobi

std.ee

std.co.ke

std.co.id

std.com.tw

std.co.kr

std.info

std.rocks

std.ltd

std.jp

std.ma

std.pt

std.hu

std.today

std.eu

std.cz

std.nl

std.fr

std.pl

std.sh

std.mn

std.uz

std.com

std.es

std.cloud

std.vn

std.chat

std.ck.ua

std.org.tw

std.gov.cn

std.com.hk

std.com.ro

std.name

std.biz

std.co

std.se

std.im

std.com.mx

std.tv

std.com.pl

std.com.vn

Similar names

dst.si

dts.bg

dst.it

sdt.jp

tds.mq

dts.ge

tsd.center

sdt.ltd

tds.de

tds.net.pl

tsd.nl

sdt.nl

dts.com

dts.moe

tsd.hu

dts.fi

sdt.com.br

dst.co.id

sdt.org.uk

sdt.sk

tsd.be

tds.com

dst.com.pl

tsd.ac.uk

tds.sn

sdt.eu

dts.cash

tds.pl

tds.su

dts.center

tds.ie

tds.vn

dts.gov.ua

dst.net.au

sdt.ch

tds.co.th

tds.org.ua

dts.mg

tds.ge

dts.se

dst.altervista.org

tds.net

tds.org.tr

sdt.email

tds.co.za

tsd.fi

tds.co

dst.com.bn

tsd.gov.ly

sdt.bz

dst.hr

tds.com.tw

dts.name

dst.fund

tsd.am

tsd.org.tr

tds.sk

sdt.at

tds.name

dts.com.pe

dts.co.il

tsd.com.ar

dts.com.sg

sdt.fi

dts.ca

sdt.name

dts.it

dst.bg

dst.guru

tds.si

dst.sa

sdt.com.ua

tsd.at

dst.co.za

dts.nhs.uk

dts.solutions

sdt.media

dst.world

dts.dental

tds.net.ru

dst.name

dts.group

tsd.pro

dst.es

dts.org.tw

DNS History

14 records (5 active, 9 former)

○NSbuy.internettraffic.com2015-06-29 → 2015-06-29 · 3 obs

● 2015-06-29 15:08:18
○ 2015-11-11 21:43:06
○ 2026-07-11 22:59:08

●NSdns1.hichina.com2026-03-09 → 2026-07-11 · 3 obs

○ 2021-09-20 18:56:18
● 2026-03-09 15:39:32
● 2026-07-11 22:59:08

●NSdns2.hichina.com2026-03-09 → 2026-07-11 · 3 obs

○ 2021-09-20 18:56:18
● 2026-03-09 15:39:32
● 2026-07-11 22:59:08

○NSns1.bodis.com2015-11-11 → 2017-01-03 · 5 obs

○ 2015-06-29 15:08:18
● 2015-11-11 21:43:06
● 2017-01-03 06:16:24
○ 2020-11-27 22:53:40
○ 2026-07-11 22:59:08

○NSns2.bodis.com2015-11-11 → 2017-01-03 · 5 obs

○ 2015-06-29 15:08:18
● 2015-11-11 21:43:06
● 2017-01-03 06:16:24
○ 2020-11-27 22:53:40
○ 2026-07-11 22:59:08

○NSsell.internettraffic.com2015-06-29 → 2015-06-29 · 3 obs

● 2015-06-29 15:08:18
○ 2015-11-11 21:43:06
○ 2026-07-11 22:59:08

○NSwww.std.cn2020-11-27 → 2021-09-20 · 5 obs

○ 2017-01-03 06:16:24
● 2020-11-27 22:53:40
● 2021-09-20 18:56:18
○ 2026-03-09 15:39:32
○ 2026-07-11 22:59:08

●MXhzmx01.mxmail.netease.com2026-03-09 → 2026-07-11 · 5 obs

● 2026-03-09 15:39:32
● 2026-05-12 13:26:02
○ 2026-06-13 06:39:16
● 2026-06-13 23:30:18
● 2026-07-11 22:59:08

●MXhzmx02.mxmail.netease.com2026-03-09 → 2026-07-11 · 5 obs

● 2026-03-09 15:39:32
● 2026-05-12 13:26:02
○ 2026-06-13 06:39:16
● 2026-06-13 23:30:18
● 2026-07-11 22:59:08

○A199.59.242.1502017-01-03 → 2017-01-03 · 4 obs

○ 2016-05-06 04:53:38
● 2017-01-03 06:16:24
○ 2020-11-27 22:53:40
○ 2026-07-11 22:59:08

○A199.59.243.1202015-11-11 → 2016-05-06 · 5 obs

○ 2015-06-29 15:08:18
● 2015-11-11 21:43:06
● 2016-05-06 04:53:38
○ 2017-01-03 06:16:24
○ 2026-07-11 22:59:08

●A27.223.85.22026-03-09 → 2026-07-11 · 6 obs

○ 2020-11-27 22:53:40
● 2026-03-09 15:39:32
● 2026-05-12 13:26:02
○ 2026-06-13 06:39:16
● 2026-06-13 23:30:18
● 2026-07-11 22:59:08

○A69.172.201.2082015-06-29 → 2015-06-29 · 3 obs

● 2015-06-29 15:08:18
○ 2015-11-11 21:43:06
○ 2026-07-11 22:59:08

○CNAMEs.17986.net2020-11-27 → 2021-09-20 · 4 obs

● 2020-11-27 22:53:40
● 2021-09-20 18:56:18
○ 2026-03-09 15:39:32
○ 2026-07-11 22:59:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
std.cn	dns1.hichina.com, dns2.hichina.com	-

✅ Authoritative Response

Server:47.118.199.204

NS records: dns1.hichina.com, dns2.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for std.cn (unsigned zone)

⏱️ Timing

Total: 2105ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`27.223.85.2`
NS	2	`dns1.hichina.com, dns2.hichina.com`
MX	2	`hzmx01.mxmail.netease.com (pri: 1), hzmx02.mxmail.netease.com (pri: 2)`
TXT	1	`v=spf1 include:spf.qiye.163.com -all`
SOA	1	`dns1.hichina.com hostmaster.hichina.com`

Analysis

Hierarchy

www.std.cn is delegated beneath std.cn.

IP Addresses

std.cn resolves to one IP address: 27.223.85.2.

Other hosts including sitande.com, www.std.cn and stdiso.cn share IP addresses with std.cn.

Name Servers

DNS delegation for std.cn points to two name servers: dns1.hichina.com and dns2.hichina.com.

std.cn uses the same name servers as several other domains — among them sensv.net, bj15.cn, gxgcc.com and two more.

There is at least partial name server overlap between std.cn and other domains — 2sdx.com, ziyuanhai.cn, calls.com.cn and two more among them.

These name servers tend to appear in combination with the name servers ns1.alidns.com, ns2.alidns.com, expirens3.hichina.com and expirens4.hichina.com.

Hostnames that resolve to 9 IP addresses:

dns1.hichina.com has IP addresses 39.96.153.43, 39.96.153.63 and 47.118.199.203, plus 6 other.

dns2.hichina.com has IP addresses 39.96.153.44, 39.96.153.54 and 47.118.199.204, plus 6 other.

Mail Servers

Mail for std.cn is handled by two mail servers — hzmx01.mxmail.netease.com and hzmx02.mxmail.netease.com.

std.cn uses an identical mail server configuration to several other domains — among them jsperky.com, jhdinv.com, shinesun.org and two more.

std.cn has mail servers in common with other domains — for example ehanri.com, thread-insert.com and bartuda.com.

Hostnames that resolve to two IP addresses:

hzmx02.mxmail.netease.com has two IP addresses: 47.251.71.119 and 47.251.84.126.

std.cn - robtex.com

std.cn

cn

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`std.cn`

`cn`