model-instructor.com - dns.ninja

`model-instructor.com`

DNSSEC	⚠️ Not signed
NS	`ns1.xserver.jp` ⚠️ Not in zone NS records
		A	202.226.36.164^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		A	202.226.36.170^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		A	202.226.36.246^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns1.xserver.jp`
NS	`ns2.xserver.jp` ⚠️ Not in zone NS records
		A	35.72.43.26^{🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix}
			PTR	`ns2.xserver.jp`
NS	`ns3.xserver.jp` ⚠️ Not in zone NS records
		A	202.226.36.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns3.xserver.jp`
NS	`ns4.xserver.jp` ⚠️ Not in zone NS records
		A	183.90.224.226^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		A	183.90.224.230^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		A	202.226.39.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns4.xserver.jp`
NS	`ns5.xserver.jp` ⚠️ Not in zone NS records
		A	157.112.182.218^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
		A	157.112.182.220^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
		A	202.226.37.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns5.xserver.jp`

`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=1785646522

MX for

model-instructor.com

Subdomains

www.model-instructor.com

Same first word

model-instructor.com

DNS History

12 records (5 active, 7 former)

○NSmaster.dns.ne.jp2016-12-16 → 2017-12-09 · 4 obs

● 2016-12-16 09:44:14
● 2017-12-09 08:55:02
○ 2026-07-12 12:24:16
○ 2026-08-02 05:01:18

○NSns1.dns.ne.jp2016-12-16 → 2017-12-09 · 4 obs

● 2016-12-16 09:44:14
● 2017-12-09 08:55:02
○ 2026-07-12 12:24:16
○ 2026-08-02 05:01:18

●NSns1.xserver.jp2026-07-12 → 2026-08-02 · 3 obs

○ 2017-12-09 08:55:02
● 2026-07-12 12:24:16
● 2026-08-02 05:01:18

○NSns2.dns.ne.jp2016-12-16 → 2017-12-09 · 4 obs

● 2016-12-16 09:44:14
● 2017-12-09 08:55:02
○ 2026-07-12 12:24:16
○ 2026-08-02 05:01:18

●NSns2.xserver.jp2026-07-12 → 2026-08-02 · 3 obs

○ 2017-12-09 08:55:02
● 2026-07-12 12:24:16
● 2026-08-02 05:01:18

●NSns3.xserver.jp2026-07-12 → 2026-08-02 · 3 obs

○ 2017-12-09 08:55:02
● 2026-07-12 12:24:16
● 2026-08-02 05:01:18

●NSns4.xserver.jp2026-07-12 → 2026-08-02 · 3 obs

○ 2017-12-09 08:55:02
● 2026-07-12 12:24:16
● 2026-08-02 05:01:18

●NSns5.xserver.jp2026-07-12 → 2026-08-02 · 3 obs

○ 2017-12-09 08:55:02
● 2026-07-12 12:24:16
● 2026-08-02 05:01:18

○MXmail.model-instructor.com2016-12-16 → 2017-12-09 · 4 obs

● 2016-12-16 09:44:14
● 2017-12-09 08:55:02
○ 2026-07-12 12:24:16
○ 2026-08-02 05:01:18

○MXmodel-instructor.com2026-07-12 → 2026-07-12 · 3 obs

○ 2017-12-09 08:55:02
● 2026-07-12 12:24:16
○ 2026-08-02 05:01:18

○A160.16.124.142016-12-16 → 2017-12-09 · 4 obs

● 2016-12-16 09:44:14
● 2017-12-09 08:55:02
○ 2026-07-12 12:24:16
○ 2026-08-02 05:01:18

○A183.90.237.732026-07-12 → 2026-07-12 · 3 obs

○ 2017-12-09 08:55:02
● 2026-07-12 12:24:16
○ 2026-08-02 05:01:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net...	-
model-instructor.com	ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...	-

✅ Authoritative Response

Server:183.90.224.230

NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for model-instructor.com (unsigned zone)

⏱️ Timing

Total: 1088ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.90.237.73`
NS	5	`ns5.xserver.jp, ns4.xserver.jp...`
MX	1	`model-instructor.com (pri: 0)`
TXT	1	`v=spf1 +a:sv7232.xserver.jp +a:model-ins`
SOA	1	`ns1.xserver.jp root.xserver.jp`

Analysis

Hierarchy

model-instructor.com serves as the parent of www.model-instructor.com.

Mail Server Role

model-instructor.com is listed as a mail server for itself.

Name Servers

model-instructor.com has five name servers, which are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

model-instructor.com has at least partial name server overlap with other domains, such as momoco.mobi, weilai-culture.com, yamlab.net and two others.

It is common to see these name servers used together with name servers ns4.xserver.jp and ns5.xserver.jp.

Hostnames that resolve to three IP addresses:

ns1.xserver.jp has IP addresses 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp has IP addresses 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp has IP addresses 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Hosts with just one IP address:

ns2.xserver.jp directs to 35.72.43.26.

ns3.xserver.jp directs to 202.226.36.247.