k1office.com - robtex.com
k1office.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | mail.k1office.com ⭐ | ||||||
| A | 219.117.232.162🇯🇵 InfoSphere219.117.192.0/18 INTERLINK | ||||||
| PTR | mail.k1office.com | ||||||
| NS | ns1.k1office.com ⚠️ Not in parent delegation | ||||||
| A | 219.117.232.163🇯🇵 InfoSphere219.117.192.0/18 INTERLINK | ||||||
| PTR | ns1.k1office.net | ||||||
| NS | ns1.k1office.net ⚠️ Not in zone NS records | ||||||
| A | 219.117.232.163🇯🇵 InfoSphere219.117.192.0/18 INTERLINK | ||||||
| PTR | ns1.k1office.net | ||||||
| NS | ns2.k1office.net ⚠️ Not in zone NS records | ||||||
| A | 219.117.232.164🇯🇵 InfoSphere219.117.192.0/18 INTERLINK | ||||||
| PTR | ns2.k1office.net | ||||||
| MX | mail.k1office.com ⭐ | ||||||
| A | 219.117.232.162🇯🇵 InfoSphere219.117.192.0/18 INTERLINK | ||||||
| PTR | mail.k1office.com | ||||||
| TXT | v=spf1 ip4:219.117.232.162 ip4:133.242.249.69 mx:k1office.com -all | ||||||
| SOA | mail.k1office.comroot@mail.k1office.com serial=2111280413 | ||||||
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=1774555127 | ||||||
Subdomains
Same first word
DNS History
5 records (5 active, 0 former)
●NSmail.k1office.com2015-08-02 → 2026-03-26 · 2 obs
● 2026-03-26 20:20:40
●NSns1.k1office.com2026-02-15 → 2026-03-26 · 3 obs
● 2026-02-15 13:22:24
● 2026-03-26 20:20:40
●NSns1.k1office.net2015-08-02 → 2026-03-26 · 2 obs
● 2026-03-26 20:20:40
●NSns2.k1office.net2026-02-15 → 2026-03-26 · 3 obs
● 2026-02-15 13:22:24
● 2026-03-26 20:20:40
●MXmail.k1office.com2015-08-02 → 2026-03-26 · 2 obs
● 2026-03-26 20:20:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| k1office.com | ns1.k1office.net, ns2.k1office.net | - |
✅ Authoritative Response
Server:219.117.232.163
NS records: ns1.k1office.net, ns2.k1office.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for k1office.com (unsigned zone)
⏱️ Timing
Total: 1228ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 1 | ns1.k1office.com |
| MX | 1 | mail.k1office.com (pri: 0) |
| TXT | 1 | v=spf1 ip4:219.117.232.162 ip4:133.242.2 |
| SOA | 1 | mail.k1office.com root.mail.k1office.com |
Analysis
Hierarchy
k1office.com is parent of ns1.k1office.com and mail.k1office.com.
Name Servers
k1office.com is delegated to four name servers: mail.k1office.com, ns1.k1office.com, ns1.k1office.net and ns2.k1office.net.
k1office.com partially shares its name servers with other domains, for example e-itu.com and toho-tsukuba.jp.
These name servers are often used together with mail.k1office.net.
Host names with one IP number:
mail.k1office.com points to: 219.117.232.162.
ns1.k1office.com points to: 219.117.232.163.
ns1.k1office.net points to: 219.117.232.163.
ns2.k1office.net points to: 219.117.232.164.
Host names mapping to 219.117.232.163: ns1.k1office.com, ns1.k1office.net.
Mail Servers
k1office.com is handled by a single mail server, mail.k1office.com.