`startup-tokyo.com`

DNSSEC	⚠️ Not signed
A	85.131.197.112^{🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc.}
		PTR	`sv16171.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	`sv16171.xserver.jp` ⭐
		A	85.131.197.112^{🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc.}
			PTR	`sv16171.xserver.jp`
TXT	`v=spf1 +a:sv16171.xserver.jp +a:startup-tokyo.com +mx include:spf.sender.xser...`
SOA	`ns1.xserver.jp`root@xserver.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=1778349401

Subdomains

mail.startup-tokyo.com

Same first word

startup-tokyo.com

DNS History

15 records (7 active, 8 former)

○NSmv.ssl-sys.jp2018-01-12 → 2018-01-12 · 4 obs

○ 2017-01-02 17:25:36
● 2018-01-12 11:43:28
○ 2026-04-07 05:32:04
○ 2026-05-09 18:06:24

○NSmv2.ssl-sys.jp2018-01-12 → 2018-01-12 · 4 obs

○ 2017-01-02 17:25:36
● 2018-01-12 11:43:28
○ 2026-04-07 05:32:04
○ 2026-05-09 18:06:24

○NSns.startup-tokyo.com2018-01-12 → 2018-01-12 · 4 obs

○ 2017-01-02 17:25:36
● 2018-01-12 11:43:28
○ 2026-04-07 05:32:04
○ 2026-05-09 18:06:24

○NSns1.rocketnet.jp2015-06-26 → 2017-01-02 · 4 obs

● 2015-06-26 04:43:16
● 2017-01-02 17:25:36
○ 2018-01-12 11:43:28
○ 2026-05-09 18:06:24

●NSns1.xserver.jp2026-04-07 → 2026-05-09 · 3 obs

○ 2018-01-12 11:43:28
● 2026-04-07 05:32:04
● 2026-05-09 18:06:24

○NSns2.rocketnet.jp2015-06-26 → 2017-01-02 · 4 obs

● 2015-06-26 04:43:16
● 2017-01-02 17:25:36
○ 2018-01-12 11:43:28
○ 2026-05-09 18:06:24

●NSns2.xserver.jp2026-04-07 → 2026-05-09 · 3 obs

○ 2018-01-12 11:43:28
● 2026-04-07 05:32:04
● 2026-05-09 18:06:24

●NSns3.xserver.jp2026-04-07 → 2026-05-09 · 3 obs

○ 2018-01-12 11:43:28
● 2026-04-07 05:32:04
● 2026-05-09 18:06:24

●NSns4.xserver.jp2026-04-07 → 2026-05-09 · 3 obs

○ 2018-01-12 11:43:28
● 2026-04-07 05:32:04
● 2026-05-09 18:06:24

●NSns5.xserver.jp2026-04-07 → 2026-05-09 · 3 obs

○ 2018-01-12 11:43:28
● 2026-04-07 05:32:04
● 2026-05-09 18:06:24

○MXmail.startup-tokyo.com2015-06-26 → 2018-01-12 · 4 obs

● 2015-06-26 04:43:16
● 2018-01-12 11:43:28
○ 2026-04-07 05:32:04
○ 2026-05-09 18:06:24

●MXsv16171.xserver.jp2026-04-07 → 2026-05-09 · 3 obs

○ 2018-01-12 11:43:28
● 2026-04-07 05:32:04
● 2026-05-09 18:06:24

○A114.179.231.372015-06-26 → 2017-01-02 · 4 obs

● 2015-06-26 04:43:16
● 2017-01-02 17:25:36
○ 2018-01-12 11:43:28
○ 2026-05-09 18:06:24

○A153.122.25.592018-01-12 → 2018-01-12 · 4 obs

○ 2017-01-02 17:25:36
● 2018-01-12 11:43:28
○ 2026-04-07 05:32:04
○ 2026-05-09 18:06:24

●A85.131.197.1122026-04-07 → 2026-05-09 · 3 obs

○ 2018-01-12 11:43:28
● 2026-04-07 05:32:04
● 2026-05-09 18:06:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net...	-
startup-tokyo.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 startup-tokyo.com (unsigned zone)

⏱️ Timing

Total: 441ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`85.131.197.112`
NS	5	`ns5.xserver.jp, ns1.xserver.jp...`
MX	1	`sv16171.xserver.jp (pri: 0)`
TXT	1	`v=spf1 +a:sv16171.xserver.jp +a:startup-`
SOA	1	`ns1.xserver.jp root.xserver.jp`

Analysis

Hierarchy

startup-tokyo.com is the parent of mail.startup-tokyo.com.

IP Addresses

startup-tokyo.com resolves to one IP number: 85.131.197.112.

other host names including tubus.net, tax-km.jp, asuhana.jp, www.asuhana.jp and alpsc.com share IP numbers with startup-tokyo.com.

Name Servers

startup-tokyo.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.

startup-tokyo.com at least partially shares name servers with other domains, for instance cid500m.com, zonpc.com, island-net.jp, tonoken.co.jp and eigo-switch.com.

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 with one IP number:

ns2.xserver.jp points to: 35.72.43.26; ns3.xserver.jp points to: 202.226.36.247.

Mail Servers

startup-tokyo.com is handled by a single mail server, sv16171.xserver.jp.

sv16171.xserver.jp resolves to IP 85.131.197.112.

startup-tokyo.com - robtex.com