`hei521.com`

DNSSEC	⚠️ Not signed
NS	`ns1.judns.com` ⚠️ Not in zone NS records
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
			PTR	`ip-47-97-51-45.defastlink.net`
NS	`ns2.judns.com` ⚠️ Not in zone NS records
		A	162.159.27.251^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-27-251.defastlink.net`

`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

Same first word

hei521.com

DNS History

9 records (2 active, 7 former)

○NSdns10.hichina.com2015-07-08 → 2017-02-07 · 3 obs

● 2015-07-08 14:36:40
● 2017-02-07 17:37:44
○ 2026-03-23 14:16:32

○NSdns9.hichina.com2015-07-08 → 2017-02-07 · 3 obs

● 2015-07-08 14:36:40
● 2017-02-07 17:37:44
○ 2026-03-23 14:16:32

●NSns1.judns.com2026-03-23 → 2026-03-23 · 2 obs

○ 2017-02-07 17:37:44
● 2026-03-23 14:16:32

○NSns1.julydns.com2026-03-23 → 2026-03-23 · 1 obs

○ 2026-03-23 14:16:32

●NSns2.judns.com2026-03-23 → 2026-03-23 · 2 obs

○ 2017-02-07 17:37:44
● 2026-03-23 14:16:32

○NSns2.julydns.com2026-03-23 → 2026-03-23 · 1 obs

○ 2026-03-23 14:16:32

○A121.42.118.832015-07-08 → 2015-07-08 · 3 obs

● 2015-07-08 14:36:40
○ 2015-11-14 00:29:12
○ 2026-03-23 14:16:32

○A121.42.76.682017-02-07 → 2017-02-07 · 3 obs

○ 2016-04-26 11:54:58
● 2017-02-07 17:37:44
○ 2026-03-23 14:16:32

○A139.129.140.1362015-11-14 → 2016-04-26 · 5 obs

○ 2015-07-08 14:36:40
● 2015-11-14 00:29:12
● 2016-04-26 11:54:58
○ 2017-02-07 17:37:44
○ 2026-03-23 14:16:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net...	-
hei521.com	ns1.judns.com, ns2.judns.com	2 records

✅ Authoritative Response

Server:47.97.51.45

NS records: ns1.judns.com, ns2.judns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hei521.com (unsigned zone)

⏱️ Timing

Total: 489ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.julydns.com, ns2.julydns.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.judns.com, ns2.judns.com)

Analysis

Name Servers

hei521.com's delegation uses two name servers, ns1.judns.com and ns2.judns.com.

hei521.com shares the same name server setup as other domains, for example e-global.com.cn, gametg.com, mu28.cn, wxslky.com and kbyz.com.cn.

hei521.com at least partially shares name servers with other domains, including 51hongmi.com, piante.cn, z7343.cn, wieg.cn and 2z47.cn.

these name servers are commonly used with ns1.julydns.com, ns2.julydns.com, jm1.dns.com and jm2.dns.com.

Host names with a single IP:

ns1.judns.com points to 47.97.51.45.

ns2.judns.com points to 162.159.27.251.

hei521.com - robtex.com

hei521.com

com