workfor.jp - dns.ninja
workfor.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 160.16.96.67🇯🇵 SAKURA-B160.16.0.0/17 SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | ssw03.secure-cms.net | ||||||
| NS | ns1.secure-cms.net ⭐ | ||||||
| A | 180.131.139.43🇯🇵 AS131921180.131.136.0/22 GMO CLOUD K.K. GMO GlobalSign Holdings K.K. | ||||||
| PTR | bq.ptr7.ptrcloud.net | ||||||
| NS | ns2.secure-cms.net | ||||||
| A | 153.121.55.89🇯🇵 SAKURA-B153.121.32.0/19 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | www4315up.sakura.ne.jp | ||||||
| NS | ns3.secure-cms.net | ||||||
| A | 49.212.154.50🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | ns3.secure-cms.net | ||||||
| MX | workfor.sakura.ne.jp ⭐ | ||||||
| A | 49.212.235.96🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www3386.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www3386.sakura.ne.jp ~all | ||||||
| SOA | ns1.secure-cms.netpostmaster@secure-cms.net 2026-06-23 #1 | ||||||
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=1782660603 | ||||||
Subdomains
mail.workfor.jp |
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
○NSmydomain1.do-up.com2018-05-10 → 2018-05-10 · 2 obs
○ 2026-06-28 16:00:56
●NSns1.secure-cms.net2026-06-28 → 2026-06-28 · 2 obs
● 2026-06-28 16:00:56
●NSns2.secure-cms.net2026-06-28 → 2026-06-28 · 2 obs
● 2026-06-28 16:00:56
●NSns3.secure-cms.net2026-06-28 → 2026-06-28 · 2 obs
● 2026-06-28 16:00:56
○NSworkfor.jp2018-05-10 → 2018-05-10 · 2 obs
○ 2026-06-28 16:00:56
○MXmail.workfor.jp2026-06-28 → 2026-06-28 · 1 obs
○MXmydomain1.do-up.com2018-05-10 → 2018-05-10 · 2 obs
○ 2026-06-28 16:00:56
●MXworkfor.sakura.ne.jp2026-06-28 → 2026-06-28 · 2 obs
● 2026-06-28 16:00:56
●A160.16.96.672026-06-28 → 2026-06-28 · 1 obs
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| workfor.jp | ns1.secure-cms.net, ns2.secure-cms.net, ns3.secure-cms.net | - |
✅ Authoritative Response
Server:49.212.154.50
NS records: ns1.secure-cms.net, ns2.secure-cms.net, ns3.secure-cms.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for workfor.jp (unsigned zone)
⏱️ Timing
Total: 1346ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 160.16.96.67 |
| NS | 3 | ns1.secure-cms.net, ns2.secure-cms.net... |
| MX | 1 | workfor.sakura.ne.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www3386.sakura.ne.jp ~all |
| SOA | 1 | ns1.secure-cms.net postmaster.secure-cms |
Analysis
Hierarchy
workfor.jp serves as the parent of mail.workfor.jp.
IP Addresses
workfor.jp resolves to just one IP address, 160.16.96.67.
Two other host names, along with koshi-lib.jp, neyagawa.co.jp and ssw03.secure-cms.net, also share IP numbers with workfor.jp.
Name Servers
workfor.jp is delegated to three name servers: ns1.secure-cms.net, ns2.secure-cms.net and ns3.secure-cms.net.
workfor.jp has at least partial name server overlap with other domains, such as sunbit.co.jp, f-ag.co.jp, galliumwax.co.jp and two others.
ns1.secure-cms.net, ns2.secure-cms.net and ns3.secure-cms.net each resolve to a single IP address: ns1.secure-cms.net resolves to 180.131.139.43, ns2.secure-cms.net resolves to 153.121.55.89 and ns3.secure-cms.net resolves to 49.212.154.50.
Mail Servers
The sole mail server for workfor.jp is workfor.sakura.ne.jp.
workfor.sakura.ne.jp resolves to a single IP number: 49.212.235.96.