`jwybook.com`

DNSSEC	⚠️ Not signed
A	123.59.154.172^{🇨🇳 CHINA169-BJ123.59.128.0/19 CloudVsp.Inc}
NS	`dns21.hichina.com` ⭐
		A	2408:4009:501::29^{🇨🇳 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	`dns22.hichina.com`
		A	2408:4009:501::30^{🇨🇳 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	`mxn.mxhichina.com` ⭐
		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}
MX	`mxw.mxhichina.com`⁽¹⁰⁾
		A	47.246.99.195^{🇺🇸 Alibaba-Cloud47.246.96.0/22 Proxy-registered route object}
			PTR	`reachsmartdwell.com`
TXT	`v=spf1 include:spf.mxhichina.com -all`
SOA	`dns21.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774993322

Subdomains

www.jwybook.com

Same first word

jwybook.com

DNS History

13 records (5 active, 8 former)

●NSdns21.hichina.com2026-02-21 → 2026-03-31 · 3 obs

○ 2017-10-24 23:20:18
● 2026-02-21 07:22:04
● 2026-03-31 21:49:52

●NSdns22.hichina.com2026-02-21 → 2026-03-31 · 3 obs

○ 2017-10-24 23:20:18
● 2026-02-21 07:22:04
● 2026-03-31 21:49:52

○NSns1.myhostadmin.net2015-05-26 → 2017-10-24 · 4 obs

● 2015-05-26 17:33:54
● 2017-10-24 23:20:18
○ 2026-02-21 07:22:04
○ 2026-03-31 21:49:52

○NSns2.myhostadmin.net2015-05-26 → 2017-10-24 · 4 obs

● 2015-05-26 17:33:54
● 2017-10-24 23:20:18
○ 2026-02-21 07:22:04
○ 2026-03-31 21:49:52

○NSns3.myhostadmin.net2015-05-26 → 2017-10-24 · 4 obs

● 2015-05-26 17:33:54
● 2017-10-24 23:20:18
○ 2026-02-21 07:22:04
○ 2026-03-31 21:49:52

○NSns4.myhostadmin.net2015-05-26 → 2017-10-24 · 4 obs

● 2015-05-26 17:33:54
● 2017-10-24 23:20:18
○ 2026-02-21 07:22:04
○ 2026-03-31 21:49:52

○NSns5.myhostadmin.net2015-05-26 → 2017-10-24 · 4 obs

● 2015-05-26 17:33:54
● 2017-10-24 23:20:18
○ 2026-02-21 07:22:04
○ 2026-03-31 21:49:52

○NSns6.myhostadmin.net2015-05-26 → 2017-10-24 · 4 obs

● 2015-05-26 17:33:54
● 2017-10-24 23:20:18
○ 2026-02-21 07:22:04
○ 2026-03-31 21:49:52

○MXmail.jwybook.com2015-10-22 → 2017-10-24 · 4 obs

● 2015-10-22 21:02:04
● 2017-10-24 23:20:18
○ 2026-02-21 07:22:04
○ 2026-03-31 21:49:52

○MXmail6.myhostadmin.net2015-10-22 → 2017-10-24 · 4 obs

● 2015-10-22 21:02:04
● 2017-10-24 23:20:18
○ 2026-02-21 07:22:04
○ 2026-03-31 21:49:52

●MXmxn.mxhichina.com2026-02-21 → 2026-03-31 · 3 obs

○ 2017-10-24 23:20:18
● 2026-02-21 07:22:04
● 2026-03-31 21:49:52

●MXmxw.mxhichina.com2026-02-21 → 2026-03-31 · 3 obs

○ 2017-10-24 23:20:18
● 2026-02-21 07:22:04
● 2026-03-31 21:49:52

●A123.59.154.1722026-02-21 → 2026-03-31 · 2 obs

● 2026-02-21 07:22:04
● 2026-03-31 21:49:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
jwybook.com	dns21.hichina.com, dns22.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.38

NS records: dns21.hichina.com, dns22.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jwybook.com (unsigned zone)

⏱️ Timing

Total: 532ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`123.59.154.172`
NS	2	`dns21.hichina.com, dns22.hichina.com`
MX	2	`mxn.mxhichina.com (pri: 5), mxw.mxhichina.com (pri: 10)`
TXT	1	`v=spf1 include:spf.mxhichina.com -all`
SOA	1	`dns21.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns21.hichina.com, dns21.hichina.com, dns21.hichina.com...)

Analysis

Hierarchy

The parent of www.jwybook.com is jwybook.com.

IP Addresses

jwybook.com points to a single IP: 123.59.154.172.

Other host names, for instance betoptech.com, pour-in.com, expert-denim.com, ncyjbl.com and zhdtw.com share IP numbers with jwybook.com.

Name Servers

Two name servers dns21.hichina.com and dns22.hichina.com handle delegation for jwybook.com.

jwybook.com uses the same name server setup as other domains, for example ewayzb.com, lyrayli.com, svoo.net, myekp.com.cn and tidyun.com.

jwybook.com partially shares name servers with other domains; examples include bioguard.cn, job100.cn, better-edu.org, airbaba.cn and diyiqifu.com.

These name servers are often used with the name servers ns1.alidns.com and ns2.alidns.com.

Host names with nine IP numbers:

dns21.hichina.com points to: 2408:4009:501::29, 39.96.153.40, 39.96.153.60, 47.118.199.200, 47.118.199.220, 120.76.107.40, 120.76.107.60, 139.224.142.100 and 139.224.142.110.

dns22.hichina.com points to: 2408:4009:501::30, 39.96.153.38, 39.96.153.61, 47.118.199.198, 47.118.199.222, 120.76.107.38, 120.76.107.61, 139.224.142.98 and 139.224.142.108.

Mail Servers

jwybook.com is handled by two mail servers: mxn.mxhichina.com and mxw.mxhichina.com.

jwybook.com has the same mail server setup as other domains, including elfant.net, multantech.com, kuaicad.com, kargotest.com and tinpofa.com.

jwybook.com shares some mail servers with other domains, at least partially, such as modestcn.com, shanghaixide.com, laiku.net, sunellsecurity.com and macccn.com.

Host names with two IP numbers:

The host name mxn.mxhichina.com points to 47.246.136.231 and 47.246.137.47.

Host names with one IP number:

The host name mxw.mxhichina.com points to 47.246.99.195.

jwybook.com - robtex.com

jwybook.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`jwybook.com`

`com`