df-co.jp - robtex.com
df-co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 160.86.234.88🇯🇵 So-net160.86.0.0/16 Sony Network Communications Inc. | ||||||
| PTR | fsa056ea58.oski710.ap.nuro.jp | ||||||
| NS | ns2.namedserver.net ⭐ | ||||||
| A | 157.120.112.212🇯🇵 GMOHS-CL157.120.112.0/24 GMO GlobalSign Holdings K.K. | ||||||
| A | 157.120.113.212🇯🇵 GMOHS-CL157.120.113.0/24 GMO GlobalSign Holdings K.K. | ||||||
| A | 157.120.114.212🇯🇵 GMOHS-CL157.120.114.0/24 GMO GlobalSign Holdings K.K. | ||||||
| NS | ns.namedserver.net | ||||||
| A | 157.120.112.212🇯🇵 GMOHS-CL157.120.112.0/24 GMO GlobalSign Holdings K.K. | ||||||
| A | 157.120.113.212🇯🇵 GMOHS-CL157.120.113.0/24 GMO GlobalSign Holdings K.K. | ||||||
| A | 157.120.114.212🇯🇵 GMOHS-CL157.120.114.0/24 GMO GlobalSign Holdings K.K. | ||||||
| MX | df-co.jp ⭐ | ||||||
| A | 160.86.234.88🇯🇵 So-net160.86.0.0/16 Sony Network Communications Inc. | ||||||
| PTR | fsa056ea58.oski710.ap.nuro.jp | ||||||
| MX | mail.df-co.jp ⭐ | ||||||
| A | 160.86.234.88🇯🇵 So-net160.86.0.0/16 Sony Network Communications Inc. | ||||||
| PTR | fsa056ea58.oski710.ap.nuro.jp | ||||||
| TXT | v=spf1 ip4:180.222.186.32 include:serv.dfsv.jp ~all | ||||||
| SOA | ns.namedserver.netroot@namedserver.net serial=15 | ||||||
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=1778781603 | ||||||
MX for
df-co.jp |
Subdomains
mail.df-co.jp |
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
●NSns.namedserver.net2015-07-26 → 2026-05-14 · 2 obs
● 2026-05-14 18:31:06
●NSns2.namedserver.net2015-07-26 → 2026-05-14 · 2 obs
● 2026-05-14 18:31:06
●MXdf-co.jp2015-07-26 → 2026-05-14 · 2 obs
● 2026-05-14 18:31:06
●MXmail.df-co.jp2015-07-26 → 2026-05-14 · 2 obs
● 2026-05-14 18:31:06
○A117.102.195.1782017-03-21 → 2017-08-06 · 5 obs
● 2017-03-21 17:55:26
● 2017-08-06 07:26:14
○ 2026-03-22 16:17:24
○ 2026-05-14 18:31:06
●A160.86.234.882026-03-22 → 2026-05-14 · 3 obs
● 2026-03-22 16:17:24
● 2026-05-14 18:31:06
○A211.135.203.1392015-07-26 → 2016-07-17 · 4 obs
● 2016-07-17 22:58:48
○ 2017-03-21 17:55:26
○ 2026-05-14 18:31:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | c.dns.jp, a.dns.jp, b.dns.jp, h.dns.jp... | - |
| df-co.jp | ns.namedserver.net, ns2.namedserver.net | - |
✅ Authoritative Response
Server:157.120.112.212
NS records: ns.namedserver.net, ns2.namedserver.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for df-co.jp (unsigned zone)
⏱️ Timing
Total: 906ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 160.86.234.88 |
| NS | 2 | ns.namedserver.net, ns2.namedserver.net |
| MX | 2 | mail.df-co.jp (pri: 100), df-co.jp (pri: 100) |
| TXT | 1 | v=spf1 ip4:180.222.186.32 include:serv.d |
| SOA | 1 | ns.namedserver.net root.namedserver.net |
Analysis
Hierarchy
df-co.jp is parent of mail.df-co.jp.
Mail Server Role
df-co.jp serves as a mail server for df-co.jp.
mail.df-co.jp commonly serves as a mail server together with df-co.jp.
IP Addresses
df-co.jp points to a single IP: 160.86.234.88.
Other host names such as mail.df-co.jp and fsa056ea58.oski710.ap.nuro.jp share IP numbers with df-co.jp.
Name Servers
df-co.jp's delegation is to two name servers ns2.namedserver.net and ns.namedserver.net.
df-co.jp shares the same name server configuration as other domains, such as sams-ds.com, sub0000526186.hmk-temp.com, st-forest.co.jp, sub0000499296.hmk-temp.com and sub0000551824.hmk-temp.com.
df-co.jp shares name servers with other domains at least partially, for example k-piano.net.
Host names with three IP numbers
Host ns2.namedserver.net points to 157.120.112.212, 157.120.113.212 and 157.120.114.212
Host ns.namedserver.net points to 157.120.112.212, 157.120.113.212 and 157.120.114.212
Host names that point to 157.120.112.212: ns2.namedserver.net and ns.namedserver.net
Host names that point to 157.120.113.212: ns2.namedserver.net and ns.namedserver.net
Host names that point to 157.120.114.212: ns2.namedserver.net and ns.namedserver.net
Mail Servers
df-co.jp is handled by two mail servers: df-co.jp and mail.df-co.jp.
Host names with one IP number: df-co.jp and mail.df-co.jp point to 160.86.234.88.