`sxdatong.com`

DNSSEC	⚠️ Not signed
A	115.239.246.52^{🇨🇳 CHINANET-BACKBONE115.224.0.0/12 China Telecom Network}
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}
			PTR	`ip-39-96-153-40.defastlink.net`
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-60.defastlink.net`
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-200.defastlink.net`
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-220.defastlink.net`
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-40.defastlink.net`
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-60.defastlink.net`
		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,}
			PTR	`ip-139-224-142-100.defastlink.net`
		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,}
			PTR	`ip-139-224-142-110.defastlink.net`
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}
			PTR	`ip-39-96-153-38.defastlink.net`
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-61.defastlink.net`
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-198.defastlink.net`
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-222.defastlink.net`
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-38.defastlink.net`
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-61.defastlink.net`
		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,}
			PTR	`ip-139-224-142-98.defastlink.net`
		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,}
			PTR	`ip-139-224-142-108.defastlink.net`
SOA	`dns21.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=1771291435

MX for

sxdtsc.com

Previously MX for

uvhc.cn

Subdomains

mail.sxdatong.com

Same first word

sxdatong.com

Similar names

tongdaxs.com

tongdasx.com

xstongda.com

DNS History

8 records (3 active, 5 former)

○NSdns1.hichina.com2007-11-13 → 2007-11-13 · 3 obs

● 2007-11-13 09:07:38
○ 2015-06-20 00:31:32
○ 2026-03-22 15:05:28

○NSdns2.hichina.com2007-11-13 → 2007-11-13 · 3 obs

● 2007-11-13 09:07:38
○ 2015-06-20 00:31:32
○ 2026-03-22 15:05:28

●NSdns21.hichina.com2015-06-20 → 2026-03-22 · 3 obs

○ 2007-11-13 09:07:38
● 2015-06-20 00:31:32
● 2026-03-22 15:05:28

●NSdns22.hichina.com2015-06-20 → 2026-03-22 · 3 obs

○ 2007-11-13 09:07:38
● 2015-06-20 00:31:32
● 2026-03-22 15:05:28

○MXmail.sxdatong.com2007-11-13 → 2015-06-20 · 4 obs

● 2007-11-13 09:07:38
● 2015-06-20 00:31:32
○ 2015-11-03 17:02:50
○ 2026-03-22 15:05:28

●A115.239.246.522018-07-13 → 2026-03-22 · 3 obs

○ 2017-01-16 00:33:24
● 2018-07-13 21:44:28
● 2026-03-22 15:05:28

○A123.157.138.2202015-06-20 → 2015-06-20 · 4 obs

○ 2007-11-13 09:07:38
● 2015-06-20 00:31:32
○ 2015-11-03 17:02:50
○ 2026-03-22 15:05:28

○A220.189.229.1402015-11-03 → 2017-01-16 · 5 obs

○ 2007-11-13 09:07:38
● 2015-11-03 17:02:50
● 2017-01-16 00:33:24
○ 2018-07-13 21:44:28
○ 2026-03-22 15:05:28

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server: 120.76.107.40

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sxdatong.com (unsigned zone)

⏱️ Timing

Total: 3560ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`115.239.246.52`
NS	2	`dns21.hichina.com, dns22.hichina.com`
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

sxdatong.com is the parent of mail.sxdatong.com.

Mail Server Role

sxdatong.com is the mail server for sxdtsc.com.

IP Addresses

sxdatong.com resolves to one IP number: 115.239.246.52.

Other host names, for instance mail.sxdatong.com, share IP numbers with sxdatong.com.

Name Servers

sxdatong.com is delegated to two name servers dns21.hichina.com and dns22.hichina.com.

sxdatong.com shares the same name server setup as other domains, for instance pxic.net, js-hzs.com, chinalexon.com, jianyuejia.com and 51sunlight.com.

sxdatong.com at least partially shares name servers with other domains, for instance yingren.cn.

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.

sxdatong.com - robtex.com

sxdatong.com

com