c-stone.jp - robtex.com
c-stone.jp
| DNSSEC | โ ๏ธ Not signed | ||||||
| A | 140.227.243.38๐ฏ๐ต InfoSphere140.227.0.0/16 INFOSPHERE | ||||||
| PTR | c-stone.jp | ||||||
| NS | ns3.sphere.ad.jp โญ | ||||||
| A | 202.239.113.22๐ฏ๐ต InfoSphere202.239.64.0/18 INFOSPHERE | ||||||
| PTR | ns3.sphere.ad.jp | ||||||
| NS | ns4.sphere.ad.jp | ||||||
| A | 202.239.113.30๐ฏ๐ต InfoSphere202.239.64.0/18 INFOSPHERE | ||||||
| PTR | ns4.sphere.ad.jp | ||||||
| MX | c-stone.jp โญ | ||||||
| A | 140.227.243.38๐ฏ๐ต InfoSphere140.227.0.0/16 INFOSPHERE | ||||||
| PTR | c-stone.jp | ||||||
| TXT | v=spf1 include:fmx.etius.jp +ip4:140.227.242.2/32 +ip4:140.227.243.38/32 -all | ||||||
| SOA | ns3.sphere.ad.jpdns@sphere.ad.jp serial=1673500352 | ||||||
jp
| DNSSEC | ๐ Signed (DS record present) | ||||||
| NS | z.dns.jp โญ | ||||||
| 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=1777219203 | ||||||
PTR for
MX for
c-stone.jp |
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
โNSns3.sphere.ad.jp2015-08-03 โ 2026-04-26 ยท 2 obs
โ 2026-04-26 16:09:24
โNSns4.sphere.ad.jp2015-08-03 โ 2026-04-26 ยท 2 obs
โ 2026-04-26 16:09:24
โMXc-stone.jp2015-08-03 โ 2026-04-26 ยท 2 obs
โ 2026-04-26 16:09:24
โA119.245.189.2042015-08-03 โ 2021-09-20 ยท 4 obs
โ 2021-09-20 20:37:30
โ 2026-04-13 20:10:52
โ 2026-04-26 16:09:24
โA140.227.243.382026-04-13 โ 2026-04-26 ยท 3 obs
โ 2026-04-13 20:10:52
โ 2026-04-26 16:09:24
๐ DNS Trace
๐ Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | d.dns.jp, f.dns.jp, h.dns.jp, g.dns.jp... | - |
| c-stone.jp | ns3.sphere.ad.jp, ns4.sphere.ad.jp | - |
โ Authoritative Response
Server:202.239.113.30
NS records: ns3.sphere.ad.jp, ns4.sphere.ad.jp
๐ DNSSEC Status
โ ๏ธ Insecure (no DNSSEC)
No DS record for c-stone.jp (unsigned zone)
โฑ๏ธ Timing
Total: 1432ms | Queries: -
๐ Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 140.227.243.38 |
| NS | 2 | ns4.sphere.ad.jp, ns3.sphere.ad.jp |
| MX | 1 | c-stone.jp (pri: 10) |
| TXT | 1 | v=spf1 include:fmx.etius.jp +ip4:140.227 |
| SOA | 1 | ns3.sphere.ad.jp dns.sphere.ad.jp |
Analysis
Mail Server Role
For c-stone.jp, the mail server is c-stone.jp.
IP Addresses
c-stone.jp resolves to one IP number: 140.227.243.38.
Name Servers
c-stone.jp is delegated to two name servers ns3.sphere.ad.jp and ns4.sphere.ad.jp.
c-stone.jp shares the same name server setup as other domains, for instance dc0.test68.etius.jp, kb.ws37.arena.ne.jp, m-up.co-site.jp, planets-si.com and shibusr.com.
c-stone.jp at least partially shares name servers with other domains, for instance bsupport.asia.
Host names with one IP number:
ns3.sphere.ad.jp points to 202.239.113.22
ns4.sphere.ad.jp points to 202.239.113.30
Mail Servers
c-stone.jp is served by a single mail server, c-stone.jp.
c-stone.jp resolves to IP 140.227.243.38.