ptr2.jp - dns.ninja

`ptr2.jp`

DNSSEC	⚠️ Not signed
A	202.226.37.132^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		PTR	`sv112.xserver.jp`
NS	`ns1.xserver.jp` ⭐
		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`
		A	35.72.43.26^{🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix}
			PTR	`ns2.xserver.jp`
NS	`ns3.xserver.jp`
		A	202.226.36.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns3.xserver.jp`
NS	`ns4.xserver.jp`
		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`
		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`
MX	`ptr2.jp` ⭐
		A	202.226.37.132^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`sv112.xserver.jp`
TXT	`v=spf1 +a:sv112.xserver.jp +a:ptr2.jp +mx include:spf.sender.xserver.jp inclu...`
SOA	`ns1.xserver.jp`root@sv0.xserver.jp serial=0

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1785055502

Previously NS for

ptr2.jp

MX for

ptr2.jp

Same first word

ptr2.df.gov.br

ptr2.com

ptr2.jp

Similar names

rtp2.com

tpr2.com

tr2p.com

2tpr.com

pr2t.com

DNS History

13 records (7 active, 6 former)

○NSns0.mydns.jp2015-05-31 → 2016-04-27 · 4 obs

● 2015-05-31 19:15:52
● 2016-04-27 17:04:14
○ 2017-02-10 07:20:46
○ 2026-07-26 09:14:50

○NSns1.mydns.jp2015-05-31 → 2016-04-27 · 4 obs

● 2015-05-31 19:15:52
● 2016-04-27 17:04:14
○ 2017-02-10 07:20:46
○ 2026-07-26 09:14:50

●NSns1.xserver.jp2017-02-10 → 2026-07-26 · 3 obs

○ 2016-04-27 17:04:14
● 2017-02-10 07:20:46
● 2026-07-26 09:14:50

○NSns2.mydns.jp2015-05-31 → 2016-04-27 · 4 obs

● 2015-05-31 19:15:52
● 2016-04-27 17:04:14
○ 2017-02-10 07:20:46
○ 2026-07-26 09:14:50

●NSns2.xserver.jp2017-02-10 → 2026-07-26 · 3 obs

○ 2016-04-27 17:04:14
● 2017-02-10 07:20:46
● 2026-07-26 09:14:50

●NSns3.xserver.jp2017-02-10 → 2026-07-26 · 3 obs

○ 2016-04-27 17:04:14
● 2017-02-10 07:20:46
● 2026-07-26 09:14:50

●NSns4.xserver.jp2017-02-10 → 2026-07-26 · 3 obs

○ 2016-04-27 17:04:14
● 2017-02-10 07:20:46
● 2026-07-26 09:14:50

●NSns5.xserver.jp2017-02-10 → 2026-07-26 · 3 obs

○ 2016-04-27 17:04:14
● 2017-02-10 07:20:46
● 2026-07-26 09:14:50

○NSptr2.jp2015-05-31 → 2016-04-27 · 4 obs

● 2015-05-31 19:15:52
● 2016-04-27 17:04:14
○ 2017-02-10 07:20:46
○ 2026-07-26 09:14:50

●MXptr2.jp2015-05-31 → 2026-07-26 · 2 obs

● 2015-05-31 19:15:52
● 2026-07-26 09:14:50

○A106.172.187.2522015-05-31 → 2016-04-27 · 4 obs

● 2015-05-31 19:15:52
● 2016-04-27 17:04:14
○ 2017-02-10 07:20:46
○ 2026-07-26 09:14:50

●A202.226.37.1322026-07-24 → 2026-07-26 · 3 obs

○ 2017-02-10 07:20:46
● 2026-07-24 23:07:52
● 2026-07-26 09:14:50

○A210.188.201.1322017-02-10 → 2017-02-10 · 4 obs

○ 2016-04-27 17:04:14
● 2017-02-10 07:20:46
○ 2026-07-24 23:07:52
○ 2026-07-26 09:14:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
ptr2.jp	ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...	11 records

✅ Authoritative Response

Server:35.72.43.26

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 ptr2.jp (unsigned zone)

⏱️ Timing

Total: 1139ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.226.37.132`
NS	5	`ns2.xserver.jp, ns4.xserver.jp...`
MX	1	`ptr2.jp (pri: 0)`
TXT	1	`v=spf1 +a:sv112.xserver.jp +a:ptr2.jp +m`
SOA	1	`ns1.xserver.jp root.sv0.xserver.jp`

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns1.xserver.jp, ns1.xserver.jp, ns1.xserver.jp...)

Analysis

Mail Server Role

ptr2.jp acts as its own mail server.

IP Addresses

ptr2.jp points to a single IP number: 202.226.37.132.

Additional host names — www.tkreo.com, ai31.jp, pandeiro.jp and two others — share IP numbers with ptr2.jp.

Name Servers

Delegation for ptr2.jp is to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

The name servers of ptr2.jp overlap at least partially with those of other domains — among them minako-design.com, umikyo.com, goro-nyan.com and two more.

These name servers commonly appear alongside the name servers ns4.xserver.jp and ns5.xserver.jp.

Host names with three IP numbers:

ns1.xserver.jp points to 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp points to 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp points to 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names pointing to a single IP address:

ns2.xserver.jp points to 35.72.43.26.

ns3.xserver.jp points to 202.226.36.247.

Mail Servers

ptr2.jp has a single mail server: ptr2.jp itself.

ptr2.jp resolves to a single IP number: 202.226.37.132.