roundcorp.jp - robtex.com
roundcorp.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 143.125.247.231🇯🇵 InfoSphere143.125.224.0/19 INFOSPHERE | ||||||
| PTR | roundcorp.jp | ||||||
| NS | ns4.mcnet.ad.jp ⭐ | ||||||
| A | 210.172.36.182🇯🇵 MCNET210.172.32.0/19 | ||||||
| NS | ns5.mcnet.ad.jp | ||||||
| A | 210.172.36.198🇯🇵 MCNET210.172.32.0/19 | ||||||
| MX | mail.roundcorp.jp ⭐ | ||||||
| A | 143.125.247.231🇯🇵 InfoSphere143.125.224.0/19 INFOSPHERE | ||||||
| PTR | roundcorp.jp | ||||||
| TXT | v=spf1 include:roundcorp.jp.spf.hosting-pf.net ~all | ||||||
| SOA | ns4.mcnet.ad.jppostmaster@mcnet.ad.jp 2012-04-27 #3 | ||||||
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=1774359902 | ||||||
PTR for
Subdomains
mail.roundcorp.jp |
Same first word
roundcorp.com |
roundcorp.jp |
Similar names
DNS History
5 records (4 active, 1 former)
●NSns4.mcnet.ad.jp2015-07-31 → 2026-03-24 · 2 obs
● 2026-03-24 14:13:50
●NSns5.mcnet.ad.jp2015-07-31 → 2026-03-24 · 2 obs
● 2026-03-24 14:13:50
●MXmail.roundcorp.jp2015-07-31 → 2026-03-24 · 2 obs
● 2026-03-24 14:13:50
●A143.125.247.2312020-03-23 → 2026-03-24 · 3 obs
● 2020-03-23 20:59:18
● 2026-03-24 14:13:50
○A203.211.184.2262015-07-31 → 2017-03-17 · 4 obs
● 2017-03-17 20:09:28
○ 2020-03-23 20:59:18
○ 2026-03-24 14:13:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| roundcorp.jp | ns4.mcnet.ad.jp, ns5.mcnet.ad.jp | - |
✅ Authoritative Response
Server:210.172.36.182
NS records: ns4.mcnet.ad.jp, ns5.mcnet.ad.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for roundcorp.jp (unsigned zone)
⏱️ Timing
Total: 1266ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 143.125.247.231 |
| NS | 2 | ns4.mcnet.ad.jp, ns5.mcnet.ad.jp |
| MX | 1 | mail.roundcorp.jp (pri: 10) |
| TXT | 1 | v=spf1 include:roundcorp.jp.spf.hosting- |
| SOA | 1 | ns4.mcnet.ad.jp postmaster.mcnet.ad.jp |
Analysis
Hierarchy
roundcorp.jp is parent of mail.roundcorp.jp.
IP Addresses
roundcorp.jp points to a single IP: 143.125.247.231.
Other host names, for instance mail.roundcorp.jp, share IP numbers with roundcorp.jp.
Name Servers
roundcorp.jp's delegation is to two name servers ns4.mcnet.ad.jp and ns5.mcnet.ad.jp.
roundcorp.jp shares the same name server configuration as other domains, such as niscoinfo.co.jp, watanabe-st.co.jp, sutekinaheya.com, s-happy.net and adinet.jp.
Host names with a single IP:
ns4.mcnet.ad.jp resolves to 210.172.36.182.
ns5.mcnet.ad.jp resolves to 210.172.36.198.
Mail Servers
roundcorp.jp is served by a single mail server, mail.roundcorp.jp.
mail.roundcorp.jp points to IP number 143.125.247.231.