bbcourse.com - dns.ninja

`bbcourse.com`

DNSSEC	⚠️ Not signed
A	154.218.164.85^{🇭🇰 ASLINE-AS-AP154.218.160.0/20}
NS	`ns1.363.hk` ⭐
		A	240e:d9:c200::2^{🇨🇳 CHINANET-SCIDC-AS-AP240e:d9:c000::/36 SICHUANIDC province network}
		A	60.247.150.254^{🇨🇳 CHINANET-SCIDC-AS-AP60.247.128.0/18 SICHUANIDC province network}
		A	118.123.249.114^{🇨🇳 CHINANET-SCIDC-AS-AP118.123.240.0/20 CHINANET SiChuan Telecom Internet Data Center}
		A	118.123.253.132^{🇨🇳 CHINANET-SCIDC-AS-AP118.123.240.0/20 CHINANET SiChuan Telecom Internet Data Center}
NS	`ns2.363.hk`
		A	240e:d9:c200:1::2^{🇨🇳 CHINANET-SCIDC-AS-AP240e:d9:c000::/36 SICHUANIDC province network}
		A	61.172.183.73^{🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC}
		A	211.149.230.100^{🇨🇳 CHINANET-SCIDC-AS-AP211.149.224.0/19 chinanet SC province network-client}
NS	`ns3.363.hk`
		A	240e:d9:c200::2^{🇨🇳 CHINANET-SCIDC-AS-AP240e:d9:c000::/36 SICHUANIDC province network}
		A	61.172.183.77^{🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC}
		A	118.123.249.114^{🇨🇳 CHINANET-SCIDC-AS-AP118.123.240.0/20 CHINANET SiChuan Telecom Internet Data Center}
NS	`ns4.363.hk`
		A	240e:d9:c200:1::2^{🇨🇳 CHINANET-SCIDC-AS-AP240e:d9:c000::/36 SICHUANIDC province network}
		A	118.123.253.132^{🇨🇳 CHINANET-SCIDC-AS-AP118.123.240.0/20 CHINANET SiChuan Telecom Internet Data Center}
		A	211.149.230.100^{🇨🇳 CHINANET-SCIDC-AS-AP211.149.224.0/19 chinanet SC province network-client}
NS	`ns5.363.hk` ⚠️ Not in zone NS records
		A	240e:d9:c200::2^{🇨🇳 CHINANET-SCIDC-AS-AP240e:d9:c000::/36 SICHUANIDC province network}
		A	61.172.183.73^{🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC}
		A	118.123.249.114^{🇨🇳 CHINANET-SCIDC-AS-AP118.123.240.0/20 CHINANET SiChuan Telecom Internet Data Center}
NS	`ns6.363.hk` ⚠️ Not in zone NS records
		A	240e:d9:c200:1::2^{🇨🇳 CHINANET-SCIDC-AS-AP240e:d9:c000::/36 SICHUANIDC province network}
		A	60.247.150.13^{🇨🇳 CHINANET-SCIDC-AS-AP60.247.128.0/18 SICHUANIDC province network}
		A	118.123.253.132^{🇨🇳 CHINANET-SCIDC-AS-AP118.123.240.0/20 CHINANET SiChuan Telecom Internet Data Center}
SOA	`ns1.363.hk`dnsconct@363.hk serial=2026013203

`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=1783201181

Same first word

bbcourse.com

Similar names

sourcebb.com

bbsource.com

bcbourse.com

brecobus.com

cubebros.com

coursebb.com

DNS History

12 records (7 active, 5 former)

○NS208.91.197.912017-12-04 → 2017-12-04 · 3 obs

● 2017-12-04 06:16:04
○ 2026-04-08 19:16:20
○ 2026-07-04 21:47:08

○NSdns3.hichina.com2026-04-08 → 2026-07-04 · 2 obs

○ 2026-04-08 19:16:20
○ 2026-07-04 21:47:08

○NSdns4.hichina.com2026-04-08 → 2026-07-04 · 2 obs

○ 2026-04-08 19:16:20
○ 2026-07-04 21:47:08

●NSns1.363.hk2026-04-08 → 2026-07-04 · 3 obs

○ 2017-12-04 06:16:04
● 2026-04-08 19:16:20
● 2026-07-04 21:47:08

●NSns2.363.hk2026-04-08 → 2026-07-04 · 3 obs

○ 2017-12-04 06:16:04
● 2026-04-08 19:16:20
● 2026-07-04 21:47:08

●NSns3.363.hk2026-04-08 → 2026-07-04 · 3 obs

○ 2017-12-04 06:16:04
● 2026-04-08 19:16:20
● 2026-07-04 21:47:08

●NSns4.363.hk2026-04-08 → 2026-07-04 · 3 obs

○ 2017-12-04 06:16:04
● 2026-04-08 19:16:20
● 2026-07-04 21:47:08

●NSns5.363.hk2026-04-08 → 2026-07-04 · 3 obs

○ 2017-12-04 06:16:04
● 2026-04-08 19:16:20
● 2026-07-04 21:47:08

●NSns6.363.hk2026-04-08 → 2026-07-04 · 3 obs

○ 2017-12-04 06:16:04
● 2026-04-08 19:16:20
● 2026-07-04 21:47:08

●A154.218.164.852026-04-08 → 2026-07-04 · 3 obs

○ 2017-12-04 06:16:04
● 2026-04-08 19:16:20
● 2026-07-04 21:47:08

○A208.91.197.912017-12-04 → 2017-12-04 · 3 obs

● 2017-12-04 06:16:04
○ 2026-04-08 19:16:20
○ 2026-07-04 21:47:08

○CNAMEexpired.hichina.com2026-04-08 → 2026-07-04 · 2 obs

○ 2026-04-08 19:16:20
○ 2026-07-04 21:47:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
bbcourse.com	ns1.363.hk, ns2.363.hk, ns3.363.hk, ns4.363.hk...	-

✅ Authoritative Response

Server:118.123.249.114

NS records: ns1.363.hk, ns2.363.hk, ns3.363.hk, ns4.363.hk, ns5.363.hk, ns6.363.hk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bbcourse.com (unsigned zone)

⏱️ Timing

Total: 1555ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`154.218.164.85`
NS	4	`ns4.363.hk, ns2.363.hk...`
SOA	1	`ns1.363.hk dnsconct.363.hk`

Analysis

IP Addresses

bbcourse.com has exactly one IP address — 154.218.164.85.

Name Servers

bbcourse.com is delegated to 6 name servers: ns1.363.hk, ns2.363.hk, ns3.363.hk and 3 other.

bbcourse.com partially shares its NS delegation with several other domains, including 757.net.cn, vpzahxe.com, 8.he.cn and two others.

In DNS configurations, these name servers often share authority with ns4.363.hk, ns5.363.hk, ns6.363.hk and 6 other name servers.

Host names with four IP addresses:

ns1.363.hk maps to the following IP addresses: 60.247.150.254, 118.123.249.114, 118.123.253.132 and 240e:d9:c200::2.

Host names carrying three IP numbers:

ns2.363.hk points to 61.172.183.73, 211.149.230.100 and 240e:d9:c200:1::2.

ns3.363.hk points to 61.172.183.77, 118.123.249.114 and 240e:d9:c200::2.

ns4.363.hk points to 118.123.253.132, 211.149.230.100 and 240e:d9:c200:1::2.

ns5.363.hk points to 61.172.183.73, 118.123.249.114 and 240e:d9:c200::2.

ns6.363.hk points to 60.247.150.13, 118.123.253.132 and 240e:d9:c200:1::2.

Three host names point to 240e:d9:c200::2: ns1.363.hk, ns3.363.hk and ns5.363.hk.

Three host names point to 118.123.249.114: ns1.363.hk, ns3.363.hk and ns5.363.hk.

Three host names point to 118.123.253.132: ns1.363.hk, ns4.363.hk and ns6.363.hk.

Three host names point to 240e:d9:c200:1::2: ns2.363.hk, ns4.363.hk and ns6.363.hk.

ns2.363.hk and ns5.363.hk are host names that each point to 61.172.183.73 IP addresses.

ns2.363.hk and ns4.363.hk are host names that each point to 211.149.230.100 IP addresses.