office-net.net - robtex.com
office-net.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.94.162.51🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www1241.sakura.ne.jp | ||||||
| NS | master.dns.ne.jp ⭐ | ||||||
| A | 210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | master.dns.ne.jp | ||||||
| NS | ns1.dns.ne.jp | ||||||
| A | 61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | ns1.dns.ne.jp | ||||||
| NS | ns2.dns.ne.jp | ||||||
| A | 133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | ns2.dns.ne.jp | ||||||
| MX | office-net.net ⭐ | ||||||
| A | 219.94.162.51🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www1241.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www1241.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2022-07-20 #0 | ||||||
net
| 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=1774618517 | ||||||
MX for
office-net.net |
Previously MX for
mail.office-net.net |
Subdomains
Same first word
office-net.co.il |
office-net.de |
office-net.com |
office-net.ru |
office-net.cz |
office-net.net |
office-net.in-berlin.de |
Similar names
net-office.jp |
net-office.com |
net-office.gr |
ten-office.com |
office-ten.com |
net-office.de |
net-office.ru |
net-office.pl |
DNS History
9 records (5 active, 4 former)
●NSmaster.dns.ne.jp2015-05-12 → 2026-03-27 · 3 obs
● 2015-05-12 18:35:52
● 2026-03-27 13:47:20
○NSns.valuecore.co.jp2007-10-19 → 2007-10-19 · 3 obs
○ 2015-05-12 18:35:52
○ 2026-03-27 13:47:20
●NSns1.dns.ne.jp2015-05-12 → 2026-03-27 · 3 obs
● 2015-05-12 18:35:52
● 2026-03-27 13:47:20
○NSns1.valuecore.co.jp2007-10-19 → 2007-10-19 · 3 obs
○ 2015-05-12 18:35:52
○ 2026-03-27 13:47:20
●NSns2.dns.ne.jp2015-05-12 → 2026-03-27 · 3 obs
● 2015-05-12 18:35:52
● 2026-03-27 13:47:20
○MXmail.office-net.net2007-10-19 → 2007-10-19 · 3 obs
○ 2015-05-12 18:35:52
○ 2026-03-27 13:47:20
●MXoffice-net.net2015-05-12 → 2026-03-27 · 3 obs
● 2015-05-12 18:35:52
● 2026-03-27 13:47:20
○A116.197.169.1372007-10-19 → 2007-10-19 · 3 obs
○ 2015-05-12 18:35:52
○ 2026-03-27 13:47:20
●A219.94.162.512015-05-12 → 2026-03-27 · 3 obs
● 2015-05-12 18:35:52
● 2026-03-27 13:47:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| office-net.net | ns1.dns.ne.jp, ns2.dns.ne.jp | - |
✅ Authoritative Response
Server:133.167.21.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for office-net.net (unsigned zone)
⏱️ Timing
Total: 410ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.94.162.51 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | office-net.net (pri: 10) |
| TXT | 1 | v=spf1 a:www1241.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Hierarchy
office-net.net is a parent of www.office-net.net and mail.office-net.net.
Mail Server Role
office-net.net serves as a mail server for office-net.net.
IP Addresses
office-net.net points to a single IP: 219.94.162.51.
Other host names, for instance javax.jp, pitservice.jp, tsujinaka.or.jp, ewellness.sakura.ne.jp and ewellness.co.jp share IP numbers with office-net.net.
Name Servers
office-net.net is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
office-net.net partially shares name servers with other domains; examples include alogo.co.jp, osadashinji.sakura.ne.jp, trefo.jp, drmc.biz and crsinc.sakura.ne.jp.
Host names with one IP number:
Host master.dns.ne.jp points to 210.224.172.18.
Host ns1.dns.ne.jp points to 61.211.236.1.
Host ns2.dns.ne.jp points to 133.167.21.1.
Mail Servers
office-net.net is handled by a single mail server, office-net.net.
office-net.net points to a single IP: 219.94.162.51.