otatech.ac.jp - robtex.com

otatech.ac.jp

DNSSEC⚠️ Not signed
NSns1.xserver.jp ⚠️ Not in zone NS records
A202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns1.xserver.jp
NSns2.xserver.jp ⚠️ Not in zone NS records
A35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xserver.jp
NSns3.xserver.jp ⚠️ Not in zone NS records
A202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns3.xserver.jp
NSns4.xserver.jp ⚠️ Not in zone NS records
A183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns4.xserver.jp
NSns5.xserver.jp ⚠️ Not in zone NS records
A157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns5.xserver.jp

ac.jp

DNSSEC⚠️ Not signed
TXTac.jp.
WOT: SAFE (80/100)

Previously MX for

otatech.ac.jp

Same first word

otatech.ac.jp

Similar names

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techato.com
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theoatc.org
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tohatec.com
thetaco.co
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toteach.nl
toatech.com.mx
atotech.pt
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echoatt.com

DNS History

10 records (5 active, 5 former)

20162017201820192020202120222023202420252026NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpns-222.dns.jp-e1.cloudn-service.comns-223.dns.jp-w1.cloudn-service.comns-224.dns.us-e1.cloudn-service.comMXotatech.ac.jpA114.147.32.76
○NSns-222.dns.jp-e1.cloudn-service.com2015-08-18 → 2018-10-24 · 4 obs
● 2015-08-18 13:38:48
● 2018-10-24 12:41:44
○ 2026-02-23 10:16:02
○ 2026-03-24 14:46:04
○NSns-223.dns.jp-w1.cloudn-service.com2015-08-18 → 2018-10-24 · 4 obs
● 2015-08-18 13:38:48
● 2018-10-24 12:41:44
○ 2026-02-23 10:16:02
○ 2026-03-24 14:46:04
○NSns-224.dns.us-e1.cloudn-service.com2015-08-18 → 2018-10-24 · 4 obs
● 2015-08-18 13:38:48
● 2018-10-24 12:41:44
○ 2026-02-23 10:16:02
○ 2026-03-24 14:46:04
●NSns1.xserver.jp2026-02-23 → 2026-03-24 · 3 obs
○ 2018-10-24 12:41:44
● 2026-02-23 10:16:02
● 2026-03-24 14:46:04
●NSns2.xserver.jp2026-02-23 → 2026-03-24 · 3 obs
○ 2018-10-24 12:41:44
● 2026-02-23 10:16:02
● 2026-03-24 14:46:04
●NSns3.xserver.jp2026-02-23 → 2026-03-24 · 3 obs
○ 2018-10-24 12:41:44
● 2026-02-23 10:16:02
● 2026-03-24 14:46:04
●NSns4.xserver.jp2026-02-23 → 2026-03-24 · 3 obs
○ 2018-10-24 12:41:44
● 2026-02-23 10:16:02
● 2026-03-24 14:46:04
●NSns5.xserver.jp2026-02-23 → 2026-03-24 · 3 obs
○ 2018-10-24 12:41:44
● 2026-02-23 10:16:02
● 2026-03-24 14:46:04
○MXotatech.ac.jp2015-08-18 → 2018-10-24 · 4 obs
● 2015-08-18 13:38:48
● 2018-10-24 12:41:44
○ 2026-02-23 10:16:02
○ 2026-03-24 14:46:04
○A114.147.32.762015-08-18 → 2018-10-24 · 4 obs
● 2015-08-18 13:38:48
● 2018-10-24 12:41:44
○ 2026-02-23 10:16:02
○ 2026-03-24 14:46:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpc.dns.jp, d.dns.jp, a.dns.jp, b.dns.jp...-
otatech.ac.jpns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...11 records

✅ Authoritative Response

Server:202.226.36.247

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 otatech.ac.jp (unsigned zone)

⏱️ Timing

Total: 1383ms | Queries: -

📄 Records

TypeCountSample Data

📌 Glue Records Collected

Total: 11

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

Analysis

Name Servers

otatech.ac.jp delegates to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.

otatech.ac.jp shares some name servers with other domains, for example autism-mama.com, kawai-med.com, roadbike.jp.net, beruehmte.info and autolifek-1.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