osst.jp - robtex.com
osst.jp
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.jproot@dns.jp serial=1773558003 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns.mediasoft.ne.jp2026-03-11 → 2026-03-24 · 2 obs
● 2026-03-24 02:46:16
●NSns2.dc.ctc.ad.jp2026-03-11 → 2026-03-24 · 2 obs
● 2026-03-24 02:46:16
●MXinbound-smtp.us-east-1.amazonaws.com2026-03-11 → 2026-03-24 · 2 obs
● 2026-03-24 02:46:16
●A202.41.221.1232026-03-11 → 2026-03-24 · 2 obs
● 2026-03-24 02:46:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| osst.jp | ns2.dc.ctc.ad.jp, ns.mediasoft.ne.jp | 1 record |
✅ Authoritative Response
Server:202.41.221.103
NS records: ns2.dc.ctc.ad.jp, ns.mediasoft.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for osst.jp (unsigned zone)
⏱️ Timing
Total: 1586ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.41.221.123 |
| NS | 2 | ns.mediasoft.ne.jp, ns2.dc.ctc.ad.jp |
| MX | 1 | inbound-smtp.us-east-1.amazonaws.com (pr |
| TXT | 1 | v=spf1 +ip4:202.41.221.103 include:spf.s |
| SOA | 1 | ns.mediasoft.ne.jp root.ns.mediasoft.ne. |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns.mediasoft.ne.jp)
Analysis
IP Addresses
osst.jp maps to IP address 202.41.221.123.
Name Servers
Two name servers ns.mediasoft.ne.jp and ns2.dc.ctc.ad.jp are delegated to osst.jp.
osst.jp uses the same name server configuration as other domains such as akebonocrown.co.jp, mediasoft.ne.jp and toyoda-gosei.com.
osst.jp at least partially shares name servers with other domains such as korona.co.jp, pc3rsupport.jp, dentsu-ikueikai.or.jp, 178.58.137.112.in-addr.arpa and kimura-unity.co.jp.
These name servers are often used together with ns1.hs.ctc.jp, ns3.ctc.jp, ns0.dc.ctc.ad.jp, cnr.kicnet.ne.jp, cns.kicnet.ne.jp, ns1.okbnet.ne.jp, ns2.okbnet.ne.jp and ns.ngu.ac.jp.
Host names by IP count:
Two IP numbers: The host name ns2.dc.ctc.ad.jp points to 2001:f58:10:1001::102 and 218.216.176.115.
One IP number: The host name ns.mediasoft.ne.jp points to 202.41.221.103.
Mail Servers
osst.jp is handled by a single mail server, inbound-smtp.us-east-1.amazonaws.com.
osst.jp shares the same mail server setup as other domains, including aws01-g01-gsx72.glip.com, medprosystems.slack.com, condocomplyfl.com, findexchange-ico.slack.com and asdf12345-team.slack.com.
osst.jp shares mail servers with other domains at least in part, for instance nestclients.atlassian.net, chewymerchops.atlassian.net, emergencyassist.net, desire2learn.atlassian.net and estarbien.com.pe.
these mail servers are commonly used alongside the mail servers inbound-smtp.us-west-2.amazonaws.com.
The host name inbound-smtp.us-east-1.amazonaws.com points to five IP numbers: 3.211.210.226, 44.206.9.87, 44.210.166.32, 54.164.173.191 and 54.197.5.236.