`sgcrystal.com`

DNSSEC	⚠️ Not signed
A	159.226.242.50^{🇨🇳 CSTNET-AS-AP159.226.242.0/23}
NS	`dns1.4cun.com` ⭐
		A	2408:4005:3dc:af00:a6be:339e:a1a0:ceb7^{🇨🇳 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	`dns2.51dns.top` ⚠️ Not in zone NS records
		A	2408:4005:3dc:af00:a6be:339e:a1a0:ceb7^{🇨🇳 Alibaba-Cloud2408:4005::/33}
		A	219.138.102.210^{🇨🇳 CHINATELECOM-HUBEI-YICHANG-IDC219.138.102.0/24 yichang}
MX	`mx.mail.ym.163.com` ⭐
		A	111.124.200.35^{🇨🇳 CHINANET-Guizhou-Guian-IDC111.124.192.0/19}
SOA	`dns.4cun.com`admin@sgcrystal.com serial=1772527019

`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=1774819837

Same first word

sgcrystal.com

DNS History

7 records (5 active, 2 former)

●NSdns.4cun.com2015-06-20 → 2026-03-29 · 2 obs

● 2015-06-20 04:22:14
● 2026-03-29 21:51:08

●NSdns1.4cun.com2026-03-29 → 2026-03-29 · 3 obs

○ 2015-06-20 04:22:14
● 2026-03-29 15:18:26
● 2026-03-29 21:51:08

●NSdns2.51dns.top2026-03-29 → 2026-03-29 · 3 obs

○ 2015-06-20 04:22:14
● 2026-03-29 15:18:26
● 2026-03-29 21:51:08

●MXmx.mail.ym.163.com2015-06-20 → 2026-03-29 · 2 obs

● 2015-06-20 04:22:14
● 2026-03-29 21:51:08

●A159.226.242.502026-03-29 → 2026-03-29 · 3 obs

○ 2020-02-02 10:10:08
● 2026-03-29 15:18:26
● 2026-03-29 21:51:08

○A222.73.218.1262015-06-20 → 2017-03-22 · 4 obs

● 2015-06-20 04:22:14
● 2017-03-22 10:59:28
○ 2020-02-02 10:10:08
○ 2026-03-29 21:51:08

○A222.73.218.1452020-02-02 → 2020-02-02 · 4 obs

○ 2017-03-22 10:59:28
● 2020-02-02 10:10:08
○ 2026-03-29 15:18:26
○ 2026-03-29 21:51:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sgcrystal.com	dns1.4cun.com, dns2.51dns.top	2 records

✅ Authoritative Response

Server:61.172.183.74

NS records: dns1.4cun.com, dns2.51dns.top

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sgcrystal.com (unsigned zone)

⏱️ Timing

Total: 1591ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`159.226.242.50`
MX	1	`mx.mail.ym.163.com (pri: 10)`
SOA	1	`dns.4cun.com admin.sgcrystal.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns1.4cun.com, dns1.4cun.com)

Analysis

IP Addresses

sgcrystal.com maps to IP address 159.226.242.50.

Other host names, for instance wetland.ihb.cas.cn, taihu.niglas.cas.cn, nctt.ac.cn, nairc.com and www.geigg.ac.cn share IP numbers with sgcrystal.com.

Name Servers

sgcrystal.com is delegated to name servers dns1.4cun.com, dns.4cun.com and dns2.51dns.top.

sgcrystal.com at least partially shares name servers with other domains such as nlpcn.com, acafe.co, awatch.net, lambocghini.com and deaohk.com.

These name servers are often used together with dns3.4cun.com, dns4.51dns.top, dns2.4cun.com, dns7.4cun.com, ns1.4cun.com, dns8.51dns.top, dns5.4cun.com, dns6.51dns.top, ns2.4cun.com and ns3.4cun.com.

Host names with two IP numbers:

The host name dns1.4cun.com points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 61.172.183.74.

The host name dns2.51dns.top points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 219.138.102.210.

Host names that point to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 are dns1.4cun.com and dns2.51dns.top.

Mail Servers

sgcrystal.com is handled by a single mail server, mx.mail.ym.163.com.

sgcrystal.com shares the same mail server setup as other domains, including hzjinfeng.cn, fs-motiontech.com, paozhen.com, mixsite.org and dlhytc.cn.

sgcrystal.com shares mail servers with other domains at least in part, for instance foconn.com, fjsyl.com, leadersigncn.com, okbao.com and qeyj.com.

these mail servers are commonly used alongside the mail servers mx.ym.163.com.

mx.mail.ym.163.com points to one IP number: 111.124.200.35.

sgcrystal.com - robtex.com

sgcrystal.com

com