obitsu.com - dns.ninja
obitsu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.230.253.78🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | webltw78.alpha-mail.jp | ||||||
| NS | kotetsu.alpha-lt.net ⭐ | ||||||
| A | 157.205.252.6🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object) | ||||||
| PTR | amdns01.alpha-mail.jp | ||||||
| NS | amdns03.alpha-mail.jp | ||||||
| A | 216.230.254.112🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | amdns03.alpha-mail.jp | ||||||
| NS | tsukuba.aics.ne.jp | ||||||
| A | 157.205.252.7🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object) | ||||||
| PTR | amdns02.alpha-mail.jp | ||||||
| MX | ampub01.alpha-mail.net ⭐ | ||||||
| A | 216.230.254.1🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| MX | ampub02.alpha-mail.net ⭐ | ||||||
| A | 216.230.254.2🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| MX | ampub03.alpha-mail.net ⭐ | ||||||
| A | 216.230.254.3🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| MX | ampub04.alpha-mail.net(50) | ||||||
| A | 216.230.254.4🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | ampub04.alpha-mail.net | ||||||
| TXT | v=spf1 ip4:157.205.202.0/24 ip4:157.205.203.128/25 ip4:216.230.250.0/24 ip4:2... | ||||||
| SOA | kotetsu.alpha-lt.netpostmaster@alpha-web.ne.jp 2023-08-11 #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.netnstld@verisign-grs.com serial=1784681732 | ||||||
Same first word
Similar names
DNS History
12 records (8 active, 4 former)
●NSamdns03.alpha-mail.jp2026-02-15 → 2026-07-22 · 3 obs
● 2026-02-15 20:18:44
● 2026-07-22 01:14:48
○NSdns.interq.or.jp2008-03-19 → 2008-03-19 · 3 obs
○ 2015-07-07 17:09:50
○ 2026-07-22 01:14:48
○NSdns1.interq.or.jp2008-03-19 → 2008-03-19 · 3 obs
○ 2015-07-07 17:09:50
○ 2026-07-22 01:14:48
●NSkotetsu.alpha-lt.net2015-07-07 → 2026-07-22 · 3 obs
● 2015-07-07 17:09:50
● 2026-07-22 01:14:48
●NStsukuba.aics.ne.jp2015-07-07 → 2026-07-22 · 3 obs
● 2015-07-07 17:09:50
● 2026-07-22 01:14:48
●MXampub01.alpha-mail.net2015-07-07 → 2026-07-22 · 3 obs
● 2015-07-07 17:09:50
● 2026-07-22 01:14:48
●MXampub02.alpha-mail.net2015-07-07 → 2026-07-22 · 3 obs
● 2015-07-07 17:09:50
● 2026-07-22 01:14:48
●MXampub03.alpha-mail.net2015-07-07 → 2026-07-22 · 3 obs
● 2015-07-07 17:09:50
● 2026-07-22 01:14:48
●MXampub04.alpha-mail.net2020-01-25 → 2026-07-22 · 3 obs
● 2020-01-25 17:20:26
● 2026-07-22 01:14:48
○MXmx01.mshost.interq.or.jp2008-03-19 → 2008-03-19 · 3 obs
○ 2015-07-07 17:09:50
○ 2026-07-22 01:14:48
○A216.230.250.1822015-07-07 → 2020-01-25 · 5 obs
● 2015-07-07 17:09:50
● 2020-01-25 17:20:26
○ 2026-02-15 20:18:44
○ 2026-07-22 01:14:48
●A216.230.253.782026-02-15 → 2026-07-22 · 3 obs
● 2026-02-15 20:18:44
● 2026-07-22 01:14:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net, a.gtld-servers.net... | - |
| obitsu.com | kotetsu.alpha-lt.net, tsukuba.aics.ne.jp, amdns03.alpha-mail.jp | - |
✅ Authoritative Response
Server:157.205.252.7
NS records: kotetsu.alpha-lt.net, tsukuba.aics.ne.jp, amdns03.alpha-mail.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for obitsu.com (unsigned zone)
⏱️ Timing
Total: 1464ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.230.253.78 |
| NS | 3 | kotetsu.alpha-lt.net, tsukuba.aics.ne.jp... |
| MX | 4 | ampub01.alpha-mail.net (pri: 10), ampub02.alpha-mail.net (pri: 10)... |
| TXT | 1 | v=spf1 ip4:157.205.202.0/24 ip4:157.205. |
| SOA | 1 | kotetsu.alpha-lt.net postmaster.alpha-we |
Analysis
IP Addresses
obitsu.com directs to one IP number, which is 216.230.253.78.
Among the host names that share IP numbers with obitsu.com are nanbyo-study.jp, www.asuka-ac.jp, ohkumakoumuten.co.jp and two others.
Name Servers
obitsu.com is delegated to three name servers: amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp.
obitsu.com has at least partial name server overlap with other domains, such as chushin.info, shokuiku.or.jp, at-keino.com and two others.
amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp each resolve to a single IP address: amdns03.alpha-mail.jp resolves to 216.230.254.112, kotetsu.alpha-lt.net resolves to 157.205.252.6 and tsukuba.aics.ne.jp resolves to 157.205.252.7.
Mail Servers
Four mail servers handle email for obitsu.com: ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net.
obitsu.com shares at least some of its mail servers with other domains — for example t-mac.jp, sea-north.co.jp, itoh-kinzoku.co.jp and two more.
ampub01.alpha-mail.net resolves to 216.230.254.1. ampub02.alpha-mail.net resolves to 216.230.254.2. ampub03.alpha-mail.net resolves to 216.230.254.3. ampub04.alpha-mail.net resolves to 216.230.254.4. All four hosts carry exactly one IP address.