`jscby.com`

DNSSEC	⚠️ Not signed
NS	`dns5.4cun.com` ⭐
		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}
NS	`dns.4cun.com` ⚠️ Not in zone NS records
NS	`dns6.51dns.top` ⚠️ Not in zone NS records
		A	2408:4005:3dc:af00:a6be:339e:a1a0:d2b8^{🇨🇳 Alibaba-Cloud2408:4005::/33}
		A	61.172.183.74^{🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC}
SOA	`dns.4cun.com`admin@jscby.com serial=1779438839

`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=1785011312

Same first word

jscby.com

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DNS History

3 records (3 active, 0 former)

●NSdns.4cun.com2015-08-05 → 2026-07-25 · 2 obs

● 2015-08-05 15:21:38
● 2026-07-25 20:43:54

●NSdns5.4cun.com2026-05-28 → 2026-07-25 · 3 obs

○ 2015-08-05 15:21:38
● 2026-05-28 11:21:22
● 2026-07-25 20:43:54

●NSdns6.51dns.top2026-05-28 → 2026-07-25 · 3 obs

○ 2015-08-05 15:21:38
● 2026-05-28 11:21:22
● 2026-07-25 20:43:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
jscby.com	dns5.4cun.com, dns6.51dns.top	2 records

✅ Authoritative Response

Server:61.172.183.74

NS records: dns5.4cun.com, dns6.51dns.top

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jscby.com (unsigned zone)

⏱️ Timing

Total: 1160ms | Queries: -

📄 Records

Type	Count	Sample Data
SOA	1	`dns.4cun.com admin.jscby.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns5.4cun.com, dns5.4cun.com)

Analysis

Name Servers

jscby.com is served by three name servers: dns5.4cun.com, dns.4cun.com and dns6.51dns.top.

jscby.com has at least partial name server overlap with other domains, such as tangbow.com, rise-ever.com, 0412yc.com and two others.

dns3.4cun.com, dns4.51dns.top and dns7.4cun.com — plus 7 other name servers — are commonly paired with these name servers.

dns5.4cun.com directs to 219.138.102.210 and 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8. dns6.51dns.top directs to 61.172.183.74 and 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8. Both hosts share the address 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8.

dns5.4cun.com and dns6.51dns.top each have 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8 IP addresses.

jscby.com - robtex.com

jscby.com

com