`51swd.com`

DNSSEC	⚠️ Not signed
A	8.138.196.85^{🇨🇳 Alibaba-Cloud8.138.128.0/17 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
NS	`dns9.hichina.com` ⭐
		A	2408:4009:501::17^{🇨🇳 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	`dns10.hichina.com`
		A	2408:4009:501::18^{🇨🇳 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	`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	`dns9.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=1777102971

WOT: UNKNOWN (60/100)

Same first word

51swd.com

Similar names

51dsw.com

wsd51.com

51wds.com

51dsw.cn

DNS History

13 records (6 active, 7 former)

●NSdns10.hichina.com2026-03-30 → 2026-04-25 · 3 obs

○ 2016-09-15 13:41:40
● 2026-03-30 18:38:02
● 2026-04-25 08:08:52

●NSdns9.hichina.com2026-03-30 → 2026-04-25 · 3 obs

○ 2016-09-15 13:41:40
● 2026-03-30 18:38:02
● 2026-04-25 08:08:52

○NSn179.ns.yunjiasu.com2015-06-23 → 2016-04-08 · 4 obs

● 2015-06-23 13:12:28
● 2016-04-08 08:27:50
○ 2016-09-15 13:41:40
○ 2026-04-25 08:08:52

○NSn3375.ns.yunjiasu.com2015-06-23 → 2016-04-08 · 4 obs

● 2015-06-23 13:12:28
● 2016-04-08 08:27:50
○ 2016-09-15 13:41:40
○ 2026-04-25 08:08:52

○MXdc-6809fa0a.51swd.com2015-06-23 → 2016-04-08 · 4 obs

● 2015-06-23 13:12:28
● 2016-04-08 08:27:50
○ 2016-09-15 13:41:40
○ 2026-04-25 08:08:52

●MXmx1.qiye.aliyun.com2026-03-30 → 2026-04-25 · 3 obs

○ 2016-09-15 13:41:40
● 2026-03-30 18:38:02
● 2026-04-25 08:08:52

●MXmx2.qiye.aliyun.com2026-03-30 → 2026-04-25 · 3 obs

○ 2016-09-15 13:41:40
● 2026-03-30 18:38:02
● 2026-04-25 08:08:52

●MXmx3.qiye.aliyun.com2026-03-30 → 2026-04-25 · 3 obs

○ 2016-09-15 13:41:40
● 2026-03-30 18:38:02
● 2026-04-25 08:08:52

○A108.162.192.612016-04-08 → 2016-04-08 · 4 obs

○ 2016-01-19 04:25:04
● 2016-04-08 08:27:50
○ 2016-09-15 13:41:40
○ 2026-04-25 08:08:52

○A108.162.193.612016-04-08 → 2016-04-08 · 4 obs

○ 2016-01-19 04:25:04
● 2016-04-08 08:27:50
○ 2016-09-15 13:41:40
○ 2026-04-25 08:08:52

○A162.159.210.932015-06-23 → 2016-01-19 · 4 obs

● 2015-06-23 13:12:28
● 2016-01-19 04:25:04
○ 2016-04-08 08:27:50
○ 2026-04-25 08:08:52

○A162.159.211.932015-06-23 → 2016-01-19 · 4 obs

● 2015-06-23 13:12:28
● 2016-01-19 04:25:04
○ 2016-04-08 08:27:50
○ 2026-04-25 08:08:52

●A8.138.196.852026-03-30 → 2026-04-25 · 3 obs

○ 2016-09-15 13:41:40
● 2026-03-30 18:38:02
● 2026-04-25 08:08:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
51swd.com	dns9.hichina.com, dns10.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.41

NS records: dns9.hichina.com, dns10.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51swd.com (unsigned zone)

⏱️ Timing

Total: 3575ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`8.138.196.85`
NS	2	`dns9.hichina.com, dns10.hichina.com`
MX	3	`mx3.qiye.aliyun.com (pri: 15), mx2.qiye.aliyun.com (pri: 10)...`
TXT	1	`v=spf1 include:spf.qiye.aliyun.com -all`
SOA	1	`dns9.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns9.hichina.com, dns9.hichina.com, dns9.hichina.com...)

Analysis

IP Addresses

51swd.com resolves to one IP number: 8.138.196.85.

Name Servers

51swd.com's delegation uses two name servers: dns10.hichina.com and dns9.hichina.com.

51swd.com uses the same name server setup as other domains, such as ceter.cn, lwjixie.com, hundgroup.com, 02286358905.com and dllsou.com.

51swd.com shares name servers with other domains at least partially, for example xwka.cn, skyrockre.com and ykboou.com.

Host names with nine IP numbers: The host name dns10.hichina.com points to 2408:4009:501::18, 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. The host name dns9.hichina.com points to 2408:4009:501::17, 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.

Mail Servers

Three mail servers handle 51swd.com: mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.

51swd.com shares at least some mail servers with other domains, for example testbar.net, senreach.com, atlasmtn.com, asean-china-center.org and mallboo.com.

These mail servers are often used with mxn.mxhichina.com and mxw.mxhichina.com.

Host names with two IP numbers:

The host name mx3.qiye.aliyun.com points to 47.246.136.231 and 47.246.137.47.

Host names with one IP number:

The host names mx1.qiye.aliyun.com and mx2.qiye.aliyun.com point to 47.246.137.47 and 47.246.136.231 respectively.

Host names that point to 47.246.136.231: mx3.qiye.aliyun.com and mx2.qiye.aliyun.com.

Host names that point to 47.246.137.47: mx3.qiye.aliyun.com and mx1.qiye.aliyun.com.

51swd.com - robtex.com

51swd.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`51swd.com`

`com`