`knowu.cn`

DNSSEC	⚠️ Not signed
NS	`dns23.hichina.com` ⭐
		A	2408:4009:501::31^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.40^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.100^{🇨🇳 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	139.224.142.110^{🇨🇳 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	`dns24.hichina.com`
		A	2408:4009:501::32^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.38^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.98^{🇨🇳 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	139.224.142.108^{🇨🇳 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	`mx1.qiye.aliyun.com` ⭐
		A	47.246.137.47^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
MX	`mx2.qiye.aliyun.com`⁽¹⁰⁾
		A	47.246.136.231^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
MX	`mx3.qiye.aliyun.com`⁽¹⁵⁾
		A	47.246.136.231^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
		A	47.246.137.47^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
TXT	`v=spf1 include:spf.qiye.aliyun.com -all`
SOA	`dns23.hichina.com`hostmaster@hichina.com 2026-05-28 #9

`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 serial=2035093912

Same first word

knowu.com

knowu.cn

knowu.net

knowu.com.br

Similar names

ukwon.com

kunow.pl

wokun.com

ukwon.net

ownku.com

uknow.in

uknow.fr

kuown.ws

nowku.com

kunow.net

uknow.ca

nowuk.net

ukown.com

wonku.com

uknow.com.hk

uknow.org

kunow.eu

kunow.de

kunow.org

wokun.nl

uknow.de

uknow.edu.vn

kunow.com

wonuk.com

kuwon.net

nowuk.com

uknow.net

kunwo.com

uknow.co

kunow.email

wukon.com

wunko.com

ownuk.com

uknow.com

nuwko.com

DNS History

5 records (5 active, 0 former)

●NSdns23.hichina.com2026-05-09 → 2026-07-26 · 2 obs

● 2026-05-09 13:58:34
● 2026-07-26 20:25:20

●NSdns24.hichina.com2026-05-09 → 2026-07-26 · 2 obs

● 2026-05-09 13:58:34
● 2026-07-26 20:25:20

●MXmx1.qiye.aliyun.com2026-05-09 → 2026-07-26 · 2 obs

● 2026-05-09 13:58:34
● 2026-07-26 20:25:20

●MXmx2.qiye.aliyun.com2026-05-09 → 2026-07-26 · 2 obs

● 2026-05-09 13:58:34
● 2026-07-26 20:25:20

●MXmx3.qiye.aliyun.com2026-05-09 → 2026-07-26 · 2 obs

● 2026-05-09 13:58:34
● 2026-07-26 20:25:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn...	-
knowu.cn	dns23.hichina.com, dns24.hichina.com	-

✅ Authoritative Response

Server:47.118.199.220

NS records: dns23.hichina.com, dns24.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowu.cn (unsigned zone)

⏱️ Timing

Total: 1640ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns24.hichina.com, dns23.hichina.com`
MX	3	`mx1.qiye.aliyun.com (pri: 5), mx2.qiye.aliyun.com (pri: 10)...`
TXT	1	`v=spf1 include:spf.qiye.aliyun.com -all`
SOA	1	`dns23.hichina.com hostmaster.hichina.com`

Analysis

Name Servers

knowu.cn uses two name servers for its delegation: dns23.hichina.com and dns24.hichina.com.

knowu.cn shares its name server setup with other domains, including zunyou.net, bpvast.com, caramelldansen.com and two others.

knowu.cn shares at least some of its name servers with other domains, including hsutdhd.top, cceex.com, cdjsxy.com and two others.

Host names with 9 IP numbers:

Hostname dns23.hichina.com directs to 39.96.153.40, 39.96.153.60 and 47.118.199.200 along with 6 other IP addresses.

Hostname dns24.hichina.com directs to 39.96.153.38, 39.96.153.61 and 47.118.199.198 along with 6 other IP addresses.

Mail Servers

knowu.cn is handled by three mail servers: mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.

knowu.cn shares mail servers — at least in part — with other domains, including lohnc.com, sades.gg, hjlcable.com and two others.

These mail servers frequently appear alongside the mail servers mxn.mxhichina.com and mxw.mxhichina.com.

Host names with two IP numbers:

mx3.qiye.aliyun.com directs traffic to 47.246.136.231 and 47.246.137.47.

Host names pointing to a single IP address:

mx1.qiye.aliyun.com has the IP address 47.246.137.47.

mx2.qiye.aliyun.com has the IP address 47.246.136.231.

Both mx3.qiye.aliyun.com and mx2.qiye.aliyun.com resolve to 47.246.136.231 IP addresses each.

Both mx3.qiye.aliyun.com and mx1.qiye.aliyun.com resolve to 47.246.137.47 IP addresses each.

knowu.cn - robtex.com

knowu.cn

cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Name Servers

Mail Servers

`knowu.cn`

`cn`