`blackboard60s.com`

DNSSEC	⚠️ Not signed
A	183.181.99.6^{🇯🇵 XSERVER-AS183.181.98.0/23 XSERVER Inc.}
		PTR	`sv105.xbiz.ne.jp`
NS	`ns1.xbiz.ne.jp` ⭐
		A	157.112.182.247^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
			PTR	`ns1.xbiz.ne.jp`
NS	`ns2.xbiz.ne.jp`
		A	35.76.79.244^{🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix}
			PTR	`ns2.xbiz.ne.jp`
NS	`ns3.xbiz.ne.jp`
		A	157.112.191.237^{🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc.}
			PTR	`ns3.xbiz.ne.jp`
MX	`blackboard60s.com` ⭐
		A	183.181.99.6^{🇯🇵 XSERVER-AS183.181.98.0/23 XSERVER Inc.}
			PTR	`sv105.xbiz.ne.jp`
TXT	`v=spf1 +a:sv105.xbiz.ne.jp +a:blackboard60s.com +mx include:spf.sender.xserve...`
SOA	`ns1.xbiz.ne.jp`root@xbiz.ne.jp serial=0

`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=1777322186

MX for

blackboard60s.com

Subdomains

flavia.blackboard60s.com

Same first word

blackboard60s.com

DNS History

11 records (5 active, 6 former)

●NSns1.xbiz.ne.jp2026-03-01 → 2026-04-27 · 3 obs

○ 2017-08-28 19:33:52
● 2026-03-01 22:15:08
● 2026-04-27 21:05:36

○NSns1.xserver.jp2017-08-01 → 2017-08-28 · 4 obs

● 2017-08-01 17:49:38
● 2017-08-28 19:33:52
○ 2026-03-01 22:15:08
○ 2026-04-27 21:05:36

●NSns2.xbiz.ne.jp2026-03-01 → 2026-04-27 · 3 obs

○ 2017-08-28 19:33:52
● 2026-03-01 22:15:08
● 2026-04-27 21:05:36

○NSns2.xserver.jp2017-08-01 → 2017-08-28 · 4 obs

● 2017-08-01 17:49:38
● 2017-08-28 19:33:52
○ 2026-03-01 22:15:08
○ 2026-04-27 21:05:36

●NSns3.xbiz.ne.jp2026-03-01 → 2026-04-27 · 3 obs

○ 2017-08-28 19:33:52
● 2026-03-01 22:15:08
● 2026-04-27 21:05:36

○NSns3.xserver.jp2017-08-01 → 2017-08-28 · 4 obs

● 2017-08-01 17:49:38
● 2017-08-28 19:33:52
○ 2026-03-01 22:15:08
○ 2026-04-27 21:05:36

○NSns4.xserver.jp2017-08-01 → 2017-08-28 · 4 obs

● 2017-08-01 17:49:38
● 2017-08-28 19:33:52
○ 2026-03-01 22:15:08
○ 2026-04-27 21:05:36

○NSns5.xserver.jp2017-08-01 → 2017-08-28 · 4 obs

● 2017-08-01 17:49:38
● 2017-08-28 19:33:52
○ 2026-03-01 22:15:08
○ 2026-04-27 21:05:36

●MXblackboard60s.com2017-08-01 → 2026-04-27 · 2 obs

● 2017-08-01 17:49:38
● 2026-04-27 21:05:36

●A183.181.99.62026-03-01 → 2026-04-27 · 3 obs

○ 2017-08-28 19:33:52
● 2026-03-01 22:15:08
● 2026-04-27 21:05:36

○A183.90.238.192017-08-01 → 2017-08-28 · 4 obs

● 2017-08-01 17:49:38
● 2017-08-28 19:33:52
○ 2026-03-01 22:15:08
○ 2026-04-27 21:05:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net...	-
blackboard60s.com	ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp	-

✅ Authoritative Response

Server:35.76.79.244

NS records: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for blackboard60s.com (unsigned zone)

⏱️ Timing

Total: 994ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.181.99.6`
NS	3	`ns2.xbiz.ne.jp, ns1.xbiz.ne.jp...`
MX	1	`blackboard60s.com (pri: 0)`
TXT	1	`v=spf1 +a:sv105.xbiz.ne.jp +a:blackboard`
SOA	1	`ns1.xbiz.ne.jp root.xbiz.ne.jp`

Analysis

Hierarchy

flavia.blackboard60s.com has blackboard60s.com as its parent.

Mail Server Role

The mail server for blackboard60s.com is blackboard60s.com.

IP Addresses

blackboard60s.com maps to IP address 183.181.99.6.

Other host names, for instance dears-oita.com, www.finolab.tokyo, pins.co.jp, dears-miyakonojou.com and kitayama-kg.com share IP numbers with blackboard60s.com.

Name Servers

blackboard60s.com is delegated to name servers ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.

blackboard60s.com at least partially shares name servers with other domains such as kobe-nishikyoukai.com, jbvp.org, speedshore.co.jp, ans-net.co.jp and hirotrade.net.

Host names with a single IP:

ns1.xbiz.ne.jp points to 157.112.182.247

ns2.xbiz.ne.jp points to 35.76.79.244

ns3.xbiz.ne.jp points to 157.112.191.237

Mail Servers

One mail server serves blackboard60s.com.

blackboard60s.com points to one IP number: 183.181.99.6.

blackboard60s.com - robtex.com