sumitomo.com - robtex.com
sumitomo.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | seigate-y.sei.co.jp ⭐ | ||||||
| A | 150.249.237.117🇯🇵 So-net150.249.0.0/16 Sony Network Communications Inc. | ||||||
| PTR | ip96f9ed75.ap.nuro.jp | ||||||
| NS | seigate.sei.co.jp | ||||||
| A | 133.153.71.126🇯🇵 OCN133.153.0.0/16 Sumitomo Electric Industries, Ltd. | ||||||
| PTR | ns02.sei.co.jp | ||||||
| MX | sei-co-jp-1.fortimailcloud.com ⭐ | ||||||
| A | 154.52.29.132🇫🇷 FORTINET154.52.29.0/24 To allow routing to other ISPs | ||||||
| PTR | proxyjp32.fortimailcloud.com | ||||||
| MX | sei-co-jp-2.fortimailcloud.com ⭐ | ||||||
| A | 154.52.14.132🇯🇵 FORTINET154.52.14.0/24 | ||||||
| PTR | proxyty31.fortimailcloud.com | ||||||
| TXT | docusign=acaad654-b0a2-47bf-9a19-322e03f95681 | ||||||
| TXT | MS=ms36258313 | ||||||
| TXT | v=spf1 +ip4:219.106.230.200/29 +ip4:60.56.229.0/28 include:_spf.salesforce.co... | ||||||
| SOA | seigate.sei.co.jproot@sumitomo.com 2025-12-16 #1 | ||||||
com
| 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=1771291435 | ||||||
Subdomains
Same first word
sumitomo.ru |
sumitomo.com.my |
sumitomo.company |
sumitomo.se |
sumitomo.com |
sumitomo.or.jp |
sumitomo.com.br |
sumitomo.info |
sumitomo.it |
sumitomo.ne.jp |
sumitomo.gr.jp |
Similar names
DNS History
10 records (4 active, 6 former)
●NSseigate-y.sei.co.jp2026-02-22 → 2026-03-21 · 3 obs
● 2026-02-22 04:19:44
● 2026-03-21 08:53:16
○NSseigate81.sei.co.jp2015-08-19 → 2016-11-11 · 4 obs
● 2016-11-11 06:10:30
○ 2026-02-22 04:19:44
○ 2026-03-21 08:53:16
○NSseiusa.sumitomo.com2015-08-19 → 2016-11-11 · 4 obs
● 2016-11-11 06:10:30
○ 2026-02-22 04:19:44
○ 2026-03-21 08:53:16
○MXmgex1.sumitomo.com2015-08-19 → 2016-11-11 · 4 obs
● 2016-11-11 06:10:30
○ 2026-02-22 04:19:44
○ 2026-03-21 08:53:16
○MXmgex2.sumitomo.com2015-08-19 → 2016-11-11 · 4 obs
● 2016-11-11 06:10:30
○ 2026-02-22 04:19:44
○ 2026-03-21 08:53:16
○MXmgex3.sumitomo.com2015-08-19 → 2016-11-11 · 4 obs
● 2016-11-11 06:10:30
○ 2026-02-22 04:19:44
○ 2026-03-21 08:53:16
○MXmgex4.sumitomo.com2015-08-19 → 2016-11-11 · 4 obs
● 2016-11-11 06:10:30
○ 2026-02-22 04:19:44
○ 2026-03-21 08:53:16
●MXsei-co-jp-1.fortimailcloud.com2026-02-22 → 2026-03-21 · 3 obs
● 2026-02-22 04:19:44
● 2026-03-21 08:53:16
●MXsei-co-jp-2.fortimailcloud.com2026-02-22 → 2026-03-21 · 3 obs
● 2026-02-22 04:19:44
● 2026-03-21 08:53:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| sumitomo.com | seigate.sei.co.jp, seigate-y.sei.co.jp | - |
✅ Authoritative Response
Server: 133.153.71.126
NS records: seigate.sei.co.jp, seigate-y.sei.co.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sumitomo.com (unsigned zone)
⏱️ Timing
Total: 1245ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | seigate.sei.co.jp, seigate-y.sei.co.jp |
| MX | 2 | sei-co-jp-1.fortimailcloud.com (pri: 50), sei-co-jp-2.fortimailcloud.com (pri: 50) |
| TXT | 3 | v=spf1 +ip4:219.106.230.200/29 +ip4:60.5, MS=ms36258313... |
| SOA | 1 | seigate.sei.co.jp root.sumitomo.com |
Analysis
Hierarchy
sumitomo.com is a parent of seiusa.sumitomo.com, mgex1.sumitomo.com and us.sumitomo.com.
Name Servers
Delegation for sumitomo.com rests with two name servers, seigate-y.sei.co.jp and seigate.sei.co.jp.
sumitomo.com shares the same name server setup as other domains, including sedi.co.jp, megabitgear.com, sumitube.com, hst-cable.co.jp and seiwc.co.jp.
sumitomo.com at least partially shares name servers with other domains, for instance seisea.com.sg, klp.co.jp, xn--pqq22ixvkfs3d.jp, sei.asia and axismateria.co.jp.
These name servers are commonly used together with ns02.sei.co.jp, seigate81.sei.co.jp, gemini.starnet.ad.jp, dnsrv.starnet.ad.jp, dns1.pacificinternet.com, dns2.pacificinternet.com, dns1.pacific.net.sg, dns2.pacific.net.sg and secdns.pacific.net.sg.
Host names with one IP number: seigate-y.sei.co.jp points to 150.249.237.117; seigate.sei.co.jp points to 133.153.71.126.
Mail Servers
sumitomo.com is handled by two mail servers: sei-co-jp-1.fortimailcloud.com and sei-co-jp-2.fortimailcloud.com.
sumitomo.com uses the same mail server configuration as other domains, such as fsci.sei.co.jp, engsin.com, sumiden-kiki.co.jp, sfe.sei.co.jp and stec.sei.co.jp.
Host names with one IP number: sei-co-jp-1.fortimailcloud.com points to 154.52.29.132; sei-co-jp-2.fortimailcloud.com points to 154.52.14.132.