`btsjedu.com`

DNSSEC	⚠️ Not signed
A	101.200.225.196^{🇨🇳 Alibaba-Cloud101.200.0.0/16 CT BeiJing IDC}
NS	`dns7.4cun.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	`dns8.51dns.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}
SOA	`dns.4cun.com`admin@btsjedu.com serial=1772529018

`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=1776018052

Same first word

btsjedu.com

Similar names

justbed.com

bjstedu.org.cn

budjets.com

budtjes.nl

djtubes.com

DNS History

5 records (4 active, 1 former)

●NSdns.4cun.com2016-12-17 → 2026-04-12 · 2 obs

● 2016-12-17 04:20:52
● 2026-04-12 18:42:18

●NSdns7.4cun.com2026-04-12 → 2026-04-12 · 3 obs

○ 2016-12-17 04:20:52
● 2026-04-12 18:42:16
● 2026-04-12 18:42:18

●NSdns8.51dns.top2026-04-12 → 2026-04-12 · 3 obs

○ 2016-12-17 04:20:52
● 2026-04-12 18:42:16
● 2026-04-12 18:42:18

●A101.200.225.1962026-04-12 → 2026-04-12 · 3 obs

○ 2017-09-24 07:15:36
● 2026-04-12 18:42:16
● 2026-04-12 18:42:18

○A121.199.5.522016-12-17 → 2017-09-24 · 4 obs

● 2016-12-17 04:20:52
● 2017-09-24 07:15:36
○ 2026-04-12 18:42:16
○ 2026-04-12 18:42:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net...	-
btsjedu.com	dns7.4cun.com, dns8.51dns.top	2 records

✅ Authoritative Response

Server:219.138.102.210

NS records: dns7.4cun.com, dns8.51dns.top

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for btsjedu.com (unsigned zone)

⏱️ Timing

Total: 1568ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`101.200.225.196`
SOA	1	`dns.4cun.com admin.btsjedu.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns7.4cun.com, dns7.4cun.com)

Analysis

IP Addresses

btsjedu.com points to a single IP: 101.200.225.196.

Name Servers

btsjedu.com is delegated to three name servers: dns7.4cun.com, dns.4cun.com and dns8.51dns.top.

btsjedu.com at least partially shares its name servers with other domains, for instance lhysoft.net, hnfi.net, lymy1684.com, jim.org.cn and cmm-service.com.

These name servers are commonly used with dns4.51dns.top, dns3.4cun.com, dns8.4cun.com, dns1.4cun.com, dns2.51dns.top, dns6.51dns.top, dns5.4cun.com, ns3.4cun.com, ns4.4cun.com and ns1.4cun.com.

Host names with two IP numbers

Host dns7.4cun.com points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 61.172.183.74

Host dns8.51dns.top points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 219.138.102.210

Host names pointing to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7: dns7.4cun.com and dns8.51dns.top

btsjedu.com - robtex.com

btsjedu.com

com