`jt521.com`

DNSSEC	⚠️ Not signed
A	60.205.30.83^{🇨🇳 Alibaba-Cloud60.205.0.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns15.hichina.com` ⭐
		A	2408:4009:501::23^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.112^{🇨🇳 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	139.224.142.122^{🇨🇳 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	`dns16.hichina.com`
		A	2408:4009:501::24^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.111^{🇨🇳 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	139.224.142.121^{🇨🇳 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	`dns15.hichina.com`hostmaster@hichina.com 2026-01-09 #13

`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=1774496852

Same first word

jt521.com

Similar names

tj521.com

tj521.net

DNS History

7 records (5 active, 2 former)

○NSdns10.hichina.com2015-10-12 → 2016-03-17 · 4 obs

● 2015-10-12 02:42:48
● 2016-03-17 19:41:32
○ 2016-07-16 14:13:04
○ 2026-03-26 03:56:02

●NSdns15.hichina.com2017-03-22 → 2026-03-26 · 3 obs

○ 2016-07-16 14:13:04
● 2017-03-22 19:15:10
● 2026-03-26 03:56:02

●NSdns16.hichina.com2017-03-22 → 2026-03-26 · 3 obs

○ 2016-07-16 14:13:04
● 2017-03-22 19:15:10
● 2026-03-26 03:56:02

○NSdns9.hichina.com2015-10-12 → 2016-03-17 · 4 obs

● 2015-10-12 02:42:48
● 2016-03-17 19:41:32
○ 2016-07-16 14:13:04
○ 2026-03-26 03:56:02

●MXmxn.mxhichina.com2020-03-24 → 2026-03-26 · 2 obs

● 2020-03-24 23:23:50
● 2026-03-26 03:56:02

●MXmxw.mxhichina.com2020-03-24 → 2026-03-26 · 2 obs

● 2020-03-24 23:23:50
● 2026-03-26 03:56:02

●A60.205.30.832017-03-22 → 2026-03-26 · 2 obs

● 2017-03-22 19:15:10
● 2026-03-26 03:56:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
jt521.com	dns15.hichina.com, dns16.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.41

NS records: dns15.hichina.com, dns16.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jt521.com (unsigned zone)

⏱️ Timing

Total: 642ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`60.205.30.83`
NS	2	`dns15.hichina.com, dns16.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	`dns15.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns15.hichina.com, dns15.hichina.com, dns15.hichina.com...)

Analysis

IP Addresses

jt521.com points to IP number 60.205.30.83.

Name Servers

jt521.com is delegated to two name servers: dns15.hichina.com and dns16.hichina.com.

jt521.com uses the same name server setup as other domains such as gxzg.cn, ibitcube.com, taozir.com, glcl.cn and fyhsj.com.

jt521.com shares name servers with other domains at least partially, for example dfkdlg.com, tfzr.cn, globevisa.com.cn, grzy.com and ldskjc.com.

These name servers are commonly used together with expirens3.hichina.com, expirens4.hichina.com, dns5.hichina.com and dns6.hichina.com.

Host names with nine IP numbers:

dns15.hichina.com points to: 2408:4009:501::23, 39.96.153.42, 39.96.153.52, 47.118.199.202, 47.118.199.212, 120.76.107.42, 120.76.107.52, 139.224.142.112 and 139.224.142.122.

dns16.hichina.com points to: 2408:4009:501::24, 39.96.153.41, 39.96.153.51, 47.118.199.201, 47.118.199.211, 120.76.107.41, 120.76.107.51, 139.224.142.111 and 139.224.142.121.

Mail Servers

Two mail servers mxn.mxhichina.com and mxw.mxhichina.com handle jt521.com.

jt521.com shares the same mail server setup as other domains, for instance redchs.com, longyuesh.com, huike6.com, bregton.com and chinajobsdaily.com.

jt521.com shares mail servers with other domains at least partially; for instance artfamous.net, tziti.com, gyaya.cn, jianyejia.cn and mpro-china.com.

These mail servers are commonly used with the servers mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.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.

jt521.com - robtex.com

jt521.com

com