`51jiangke.com`

DNSSEC	⚠️ Not signed
A	183.61.166.152^{🇨🇳 CHINANET-Guangdong-DongGuan-IDC183.61.160.0/19 DongGuan IDC Network}
NS	`dns7.4cun.com` ⭐
		A	2408:4005:3dc:af00:a6be:339e:a1a0:d2b8^{🇨🇳 Alibaba-Cloud2408:4005::/33}
		A	61.172.183.74^{🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC}
NS	`dns.4cun.com` ⚠️ Not in zone NS records
NS	`dns8.51dns.top` ⚠️ Not in zone NS records
		A	2408:4005:3dc:af00:a6be:339e:a1a0:d2b8^{🇨🇳 Alibaba-Cloud2408:4005::/33}
		A	219.138.102.210^{🇨🇳 CHINATELECOM-HUBEI-YICHANG-IDC219.138.102.0/24 yichang}
MX	`mx1.yunyou.top` ⭐
		A	2404:ccc0:263:103:5054:ff:fe4a:5abe^{🇭🇰 WEST263GO-HK2404:ccc0:263::/48 West263 International Limited 12/F, San Toi Building, 137-139 Connaught Road Central, Hong Kong,}
		A	128.14.74.39^{🇺🇸 TELX-AS21859128.14.74.0/24}
			PTR	`hwmx71.cn4e.com`
MX	`mx2.yunyou.top`⁽¹⁰⁾
		A	211.149.239.73^{🇨🇳 CHINANET-SCIDC-AS-AP211.149.224.0/19 chinanet SC province network-client}
			PTR	`mx2.yunyou.top`
		A	211.149.240.37^{🇨🇳 CHINANET-SCIDC-AS-AP211.149.224.0/19 chinanet SC province network-client}
			PTR	`mx2.yunyou.top`
TXT	`v=spf1 include:yunyou.top -all`
SOA	`dns.4cun.com`admin@51jiangke.com serial=1772527550

`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=1778515066

Subdomains

www.51jiangke.com

Same first word

51jiangke.com

DNS History

8 records (6 active, 2 former)

●NSdns.4cun.com2016-07-10 → 2026-05-11 · 2 obs

● 2016-07-10 05:39:52
● 2026-05-11 16:23:32

●NSdns7.4cun.com2026-03-26 → 2026-05-11 · 3 obs

○ 2016-07-10 05:39:52
● 2026-03-26 22:52:52
● 2026-05-11 16:23:32

●NSdns8.51dns.top2026-03-26 → 2026-05-11 · 3 obs

○ 2016-07-10 05:39:52
● 2026-03-26 22:52:52
● 2026-05-11 16:23:32

○MXmail.51jiangke.com2016-07-10 → 2017-03-29 · 4 obs

● 2016-07-10 05:39:52
● 2017-03-29 04:23:58
○ 2026-03-26 22:52:52
○ 2026-05-11 16:23:32

●MXmx1.yunyou.top2026-03-26 → 2026-05-11 · 3 obs

○ 2017-03-29 04:23:58
● 2026-03-26 22:52:52
● 2026-05-11 16:23:32

●MXmx2.yunyou.top2026-03-26 → 2026-05-11 · 3 obs

○ 2017-03-29 04:23:58
● 2026-03-26 22:52:52
● 2026-05-11 16:23:32

●A183.61.166.1522026-03-26 → 2026-05-11 · 3 obs

○ 2017-03-29 04:23:58
● 2026-03-26 22:52:52
● 2026-05-11 16:23:32

○A202.153.95.332017-03-29 → 2017-03-29 · 3 obs

● 2017-03-29 04:23:58
○ 2026-03-26 22:52:52
○ 2026-05-11 16:23:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, k.gtld-servers.net, e.gtld-servers.net, d.gtld-servers.net...	-
51jiangke.com	dns7.4cun.com, dns8.51dns.top	2 records

✅ Authoritative Response

Server:61.172.183.74

NS records: dns7.4cun.com, dns8.51dns.top

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 3264ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.61.166.152`
MX	2	`mx1.yunyou.top (pri: 5), mx2.yunyou.top (pri: 10)`
TXT	1	`v=spf1 include:yunyou.top -all`
SOA	1	`dns.4cun.com admin.51jiangke.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns7.4cun.com, dns7.4cun.com)

Analysis

Hierarchy

51jiangke.com is the parent of www.51jiangke.com.

IP Addresses

51jiangke.com points to a single IP number: 183.61.166.152.

Name Servers

51jiangke.com is delegated to three name servers: dns7.4cun.com, dns.4cun.com and dns8.51dns.top.

51jiangke.com at least partially shares name servers with other domains, for instance betterun.cn, jsdebo.com, mec.net.cn, szkr.com.cn and yitongxing.cn.