`sj-science.com`

DNSSEC	⚠️ Not signed
A	45.199.103.46^{🇭🇰 HDHK45.199.96.0/20 Proxy-registered route object}
NS	`ns1.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}
NS	`ns1.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.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=1772439034

`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=1777184091

Subdomains

www.sj-science.com

DNS History

10 records (5 active, 5 former)

○NSdns13.hichina.com2015-06-12 → 2016-09-18 · 4 obs

● 2015-06-12 20:51:14
● 2016-09-18 01:31:16
○ 2017-05-16 19:47:02
○ 2026-04-26 06:40:04

○NSdns14.hichina.com2015-06-12 → 2016-09-18 · 4 obs

● 2015-06-12 20:51:14
● 2016-09-18 01:31:16
○ 2017-05-16 19:47:02
○ 2026-04-26 06:40:04

○NSexpirens3.hichina.com2017-05-16 → 2017-05-16 · 4 obs

○ 2016-09-18 01:31:16
● 2017-05-16 19:47:02
○ 2026-04-26 06:40:02
○ 2026-04-26 06:40:04

○NSexpirens4.hichina.com2017-05-16 → 2017-05-16 · 4 obs

○ 2016-09-18 01:31:16
● 2017-05-16 19:47:02
○ 2026-04-26 06:40:02
○ 2026-04-26 06:40:04

●NSns1.judns.com2026-04-26 → 2026-04-26 · 3 obs

○ 2017-05-16 19:47:02
● 2026-04-26 06:40:02
● 2026-04-26 06:40:04

●NSns1.julydns.com2026-04-26 → 2026-04-26 · 3 obs

○ 2017-05-16 19:47:02
● 2026-04-26 06:40:02
● 2026-04-26 06:40:04

●NSns2.judns.com2026-04-26 → 2026-04-26 · 3 obs

○ 2017-05-16 19:47:02
● 2026-04-26 06:40:02
● 2026-04-26 06:40:04

●NSns2.julydns.com2026-04-26 → 2026-04-26 · 3 obs

○ 2017-05-16 19:47:02
● 2026-04-26 06:40:02
● 2026-04-26 06:40:04

●A45.199.103.462026-04-26 → 2026-04-26 · 3 obs

○ 2017-05-16 19:47:02
● 2026-04-26 06:40:02
● 2026-04-26 06:40:04

○A47.89.58.1412017-05-16 → 2017-05-16 · 3 obs

● 2017-05-16 19:47:02
○ 2026-04-26 06:40:02
○ 2026-04-26 06:40:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sj-science.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 sj-science.com (unsigned zone)

⏱️ Timing

Total: 513ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.199.103.46`
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

Hierarchy

The parent of www.sj-science.com is sj-science.com.

IP Addresses

sj-science.com points to a single IP: 45.199.103.46.

Other host names such as www.sj-science.com and jskingpal.com share IP numbers with sj-science.com.

Name Servers

sj-science.com's delegation is handled by four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

sj-science.com partially shares name servers with other domains; examples include lqsyzx.com, xwfood.net, rustler.cn, pinganzg.com and posjz.com.