`osaka-u.com`

DNSSEC	⚠️ Not signed
NS	`ns1.xdomain.ne.jp` ⭐
		A	157.112.147.232^{🇯🇵 XSERVER-AS157.112.144.0/21 XSERVER Inc.}
			PTR	`ns1.xdomain.ne.jp`
NS	`ns2.xdomain.ne.jp`
		A	35.75.232.118^{🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix}
			PTR	`ns2.xdomain.ne.jp`
NS	`ns3.xdomain.ne.jp`
		A	162.43.113.246^{🇯🇵 XSERVER-AS162.43.112.0/21 XSERVER Inc.}
			PTR	`ns3.xdomain.ne.jp`
SOA	`ns1.xdomain.ne.jp`root@xdomain.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=1777119562

Same first word

osaka-u.com

osaka-u.ac.jp

osaka-u.info

osaka-u.org

Similar names

asao-ku.net

koa-usa.com

DNS History

10 records (3 active, 7 former)

○NScustns1.dal.corespace.com2017-03-15 → 2017-03-15 · 3 obs

● 2017-03-15 16:31:26
○ 2020-01-12 15:59:32
○ 2026-04-25 12:39:20

○NScustns2.dal.corespace.com2017-03-15 → 2017-03-15 · 3 obs

● 2017-03-15 16:31:26
○ 2020-01-12 15:59:32
○ 2026-04-25 12:39:20

●NSns1.xdomain.ne.jp2026-04-22 → 2026-04-25 · 3 obs

○ 2020-01-12 15:59:32
● 2026-04-22 13:13:58
● 2026-04-25 12:39:20

●NSns2.xdomain.ne.jp2026-04-22 → 2026-04-25 · 3 obs

○ 2020-01-12 15:59:32
● 2026-04-22 13:13:58
● 2026-04-25 12:39:20

●NSns3.xdomain.ne.jp2026-04-22 → 2026-04-25 · 3 obs

○ 2020-01-12 15:59:32
● 2026-04-22 13:13:58
● 2026-04-25 12:39:20

○NSnsg1.namebrightdns.com2020-01-12 → 2020-01-12 · 4 obs

○ 2017-03-15 16:31:26
● 2020-01-12 15:59:32
○ 2026-04-22 13:13:58
○ 2026-04-25 12:39:20

○NSnsg2.namebrightdns.com2020-01-12 → 2020-01-12 · 4 obs

○ 2017-03-15 16:31:26
● 2020-01-12 15:59:32
○ 2026-04-22 13:13:58
○ 2026-04-25 12:39:20

○MXmail.osaka-u.com2017-03-15 → 2017-03-15 · 3 obs

● 2017-03-15 16:31:26
○ 2020-01-12 15:59:32
○ 2026-04-25 12:39:20

○A66.221.99.642017-03-15 → 2017-03-15 · 3 obs

● 2017-03-15 16:31:26
○ 2020-01-12 15:59:32
○ 2026-04-25 12:39:20

○CNAMEhdredirect-lb5-1afb6e2973825a56.elb.us-east-1.amazonaws.com2020-01-12 → 2020-01-12 · 3 obs

● 2020-01-12 15:59:32
○ 2026-04-22 13:13:58
○ 2026-04-25 12:39:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net...	-
osaka-u.com	ns1.xdomain.ne.jp, ns2.xdomain.ne.jp, ns3.xdomain.ne.jp	-

✅ Authoritative Response

Server:35.75.232.118

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for osaka-u.com (unsigned zone)

⏱️ Timing

Total: 976ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	3	`ns2.xdomain.ne.jp, ns1.xdomain.ne.jp...`
SOA	1	`ns1.xdomain.ne.jp root.xdomain.ne.jp`

Analysis

Name Servers

osaka-u.com is delegated to three name servers: ns1.xdomain.ne.jp, ns2.xdomain.ne.jp and ns3.xdomain.ne.jp.

osaka-u.com at least partially shares name servers with other domains, for instance y-dash.net, gegres.com, cosmedo.jp, marumi-inc.com and mailmagazine-neo.com.

These name servers are commonly used together with ns1.xdomain.jp, ns2.xdomain.jp and ns3.xdomain.jp.

Host names with a single IP:

ns1.xdomain.ne.jp points to: 157.112.147.232.

ns2.xdomain.ne.jp points to: 35.75.232.118.

ns3.xdomain.ne.jp points to: 162.43.113.246.

osaka-u.com - robtex.com

osaka-u.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Name Servers

`osaka-u.com`

`com`