`blackboardsub.com`

DNSSEC	⚠️ Not signed
A	212.92.104.4^{🇳🇱 NFORCE212.92.104.0/21 NFOrce Entertainment BV - route 212.92.104.0/21}
NS	`ns1.brainydns.com` ⭐
		A	23.19.67.18^{🇺🇸 LEASEWEB-USA-LAX-1123.19.64.0/20 Leaseweb USA, Inc.}
			PTR	`watchmanagement.net`
		A	192.157.56.138^{🇺🇸 SERVER-MANIA192.157.56.0/22 B2Net Solutions}
			PTR	`server.en.gs`
		A	208.115.247.67^{🇺🇸 Limestone Networks208.115.247.0/24}
			PTR	`67-247-115-208.static.reverse.lstn.net`
		A	208.115.247.143^{🇺🇸 Limestone Networks208.115.247.0/24}
			PTR	`143-247-115-208.static.reverse.lstn.net`
NS	`ns2.brainydns.com`
		A	5.79.71.13^{🇳🇱 LEASEWEB-NL-AMS-015.79.64.0/18 LEASEWEB}
		A	5.79.75.245^{🇳🇱 LEASEWEB-NL-AMS-015.79.64.0/18 LEASEWEB}
		A	212.92.104.1^{🇳🇱 NFORCE212.92.104.0/21 NFOrce Entertainment BV - route 212.92.104.0/21}
		A	212.92.104.113^{🇳🇱 NFORCE212.92.104.0/21 NFOrce Entertainment BV - route 212.92.104.0/21}
SOA	`ns1.brainydns.com`admin@blackboardsub.com 2026-03-16 #2

`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=1774491397

Same first word

blackboardsub.com

DNS History

7 records (3 active, 4 former)

●NSns1.brainydns.com2026-02-27 → 2026-03-26 · 2 obs

● 2026-02-27 10:53:26
● 2026-03-26 02:23:26

○NSns1.emu-dns.com2026-02-27 → 2026-02-27 · 3 obs

● 2026-02-27 10:53:26
● 2026-02-27 13:17:28
○ 2026-03-26 02:23:26

●NSns2.brainydns.com2026-02-27 → 2026-03-26 · 2 obs

● 2026-02-27 10:53:26
● 2026-03-26 02:23:26

○A192.157.56.1402026-02-27 → 2026-02-27 · 3 obs

○ 2026-02-27 10:53:26
● 2026-02-27 13:17:28
○ 2026-03-26 02:23:26

○A192.157.56.1422026-02-27 → 2026-02-27 · 3 obs

● 2026-02-27 10:53:26
○ 2026-02-27 13:17:28
○ 2026-03-26 02:23:26

●A212.92.104.42026-03-26 → 2026-03-26 · 2 obs

○ 2026-02-27 13:17:28
● 2026-03-26 02:23:26

○CNAME77980.bodis.com2026-02-27 → 2026-03-26 · 2 obs

○ 2026-02-27 10:53:26
○ 2026-03-26 02:23:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net...	-
blackboardsub.com	ns1.brainydns.com, ns2.brainydns.com	8 records

✅ Authoritative Response

Server:212.92.104.1

NS records: ns1.brainydns.com, ns2.brainydns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for blackboardsub.com (unsigned zone)

⏱️ Timing

Total: 335ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.92.104.4`
NS	2	`ns1.brainydns.com, ns2.brainydns.com`
SOA	1	`ns1.brainydns.com admin.blackboardsub.co`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns1.brainydns.com, ns1.brainydns.com, ns1.brainydns.com...)

Analysis

IP Addresses

blackboardsub.com resolves to one IP number: 212.92.104.4.

other host names including bleucommegris.com, www.gamebot.org, chanpssports.com, kantotero.com and uncensored-videos.com share IP numbers with blackboardsub.com.

Name Servers

blackboardsub.com is delegated to two name servers ns1.brainydns.com and ns2.brainydns.com.

blackboardsub.com shares the same name server setup as other domains, for instance fatkun.com, musclehouses.com, mizutamacollage-factory.net, courtvisionanalytics.com and neodaq.com.

blackboardsub.com at least partially shares name servers with other domains, for instance ftuudemy.com, 24phim.com, upskirt-zip.com, negalite.com and youtubetomp4.com.

These name servers are commonly used alongside ns1.emu-dns.com and ns2.emu-dns.com.

Host names with four IP numbers: ns1.brainydns.com points to 23.19.67.18, 192.157.56.138, 208.115.247.67 and 208.115.247.143; ns2.brainydns.com points to 5.79.71.13, 5.79.75.245, 212.92.104.1 and 212.92.104.113.

blackboardsub.com - robtex.com