`studystu.com`

DNSSEC	⚠️ Not signed
A	47.76.204.68^{🇭🇰 Alibaba-Cloud47.76.128.0/17 Proxy-registered route object}
NS	`ns1.julydns.com` ⭐ ⚠️ Not in parent delegation
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
NS	`ns1.judns.com` ⚠️ Not in zone NS records
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
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}
NS	`ns2.julydns.com` ⚠️ Not in parent delegation
		A	162.159.48.223^{Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
SOA	`ns1.julydns.com`master@jmdns.com serial=1769000178

`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=1774611507

Same first word

studystu.com

DNS History

13 records (5 active, 8 former)

●NSns1.judns.com2026-03-27 → 2026-03-27 · 2 obs

○ 2018-07-30 01:56:48
● 2026-03-27 11:50:54

●NSns1.julydns.com2026-03-27 → 2026-03-27 · 2 obs

○ 2018-07-30 01:56:48
● 2026-03-27 11:50:54

○NSns1.maff.com2017-01-27 → 2017-01-27 · 4 obs

○ 2016-06-22 21:15:08
● 2017-01-27 21:51:26
○ 2018-07-30 01:56:48
○ 2026-03-27 11:50:54

○NSns1.reg.cn2018-07-30 → 2018-07-30 · 3 obs

○ 2017-01-27 21:51:26
● 2018-07-30 01:56:48
○ 2026-03-27 11:50:54

●NSns2.judns.com2026-03-27 → 2026-03-27 · 2 obs

○ 2018-07-30 01:56:48
● 2026-03-27 11:50:54

●NSns2.julydns.com2026-03-27 → 2026-03-27 · 2 obs

○ 2018-07-30 01:56:48
● 2026-03-27 11:50:54

○NSns2.reg.cn2018-07-30 → 2018-07-30 · 3 obs

○ 2017-01-27 21:51:26
● 2018-07-30 01:56:48
○ 2026-03-27 11:50:54

○NSns5.dnsdun.net2015-11-16 → 2016-06-22 · 4 obs

● 2015-11-16 22:28:12
● 2016-06-22 21:15:08
○ 2017-01-27 21:51:26
○ 2026-03-27 11:50:54

○NSns6.dnsdun.com2015-11-16 → 2016-06-22 · 4 obs

● 2015-11-16 22:28:12
● 2016-06-22 21:15:08
○ 2017-01-27 21:51:26
○ 2026-03-27 11:50:54

○A101.201.175.2262017-01-27 → 2017-01-27 · 4 obs

○ 2015-11-16 22:28:12
● 2017-01-27 21:51:26
○ 2018-07-30 01:56:48
○ 2026-03-27 11:50:54

○A112.125.17.1032015-07-15 → 2015-07-15 · 3 obs

● 2015-07-15 02:54:14
○ 2015-11-16 22:28:12
○ 2026-03-27 11:50:54

○A23.235.132.702018-07-30 → 2018-07-30 · 3 obs

○ 2017-01-27 21:51:26
● 2018-07-30 01:56:48
○ 2026-03-27 11:50:54

●A47.76.204.682026-03-27 → 2026-03-27 · 2 obs

○ 2018-07-30 01:56:48
● 2026-03-27 11:50:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, l.gtld-servers.net, k.gtld-servers.net, g.gtld-servers.net...	-
studystu.com	ns1.judns.com, ns2.judns.com	2 records

✅ Authoritative Response

Server:162.159.27.251

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studystu.com (unsigned zone)

⏱️ Timing

Total: 418ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.76.204.68`
NS	2	`ns1.julydns.com, ns2.julydns.com`
SOA	1	`ns1.julydns.com master.jmdns.com`

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

studystu.com points to IP number 47.76.204.68.

For instance, other host names chuweier.com, houdengfeng.com, ynssjt.com, hubeimt.com and nianchengkeji.com share IP numbers with studystu.com.

Name Servers

studystu.com is delegated to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

studystu.com shares name servers with other domains at least partially, for example 6c7c.com, zpe5.com, wzyiren.com, chysgw.com and zgnthzpsc.com.