kazuoh.com - robtex.com
kazuoh.com
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=1782648910 | ||||||
MX for
kazuoh.com |
Subdomains
mail.kazuoh.com |
Same first word
kazuoh.com |
Similar names
zhukao.com.cn |
hozaku.hatenablog.com |
kaozhu.com |
kuzhao.cn |
zhouka.com |
hakuzo.com |
kazhuo.com |
kazhou.com |
zhuoka.com |
DNS History
17 records (7 active, 10 former)
○NSdns003.crayfish.net2008-12-26 → 2008-12-26 · 3 obs
○ 2015-07-04 21:35:00
○ 2026-06-28 12:29:38
○NSdns004.crayfish.net2008-12-26 → 2008-12-26 · 3 obs
○ 2015-07-04 21:35:00
○ 2026-06-28 12:29:38
●NSns1.xserver.jp2026-04-06 → 2026-06-28 · 3 obs
● 2026-04-06 14:39:14
● 2026-06-28 12:29:38
●NSns2.xserver.jp2026-04-06 → 2026-06-28 · 3 obs
● 2026-04-06 14:39:14
● 2026-06-28 12:29:38
●NSns3.xserver.jp2026-04-06 → 2026-06-28 · 3 obs
● 2026-04-06 14:39:14
● 2026-06-28 12:29:38
●NSns4.xserver.jp2026-04-06 → 2026-06-28 · 3 obs
● 2026-04-06 14:39:14
● 2026-06-28 12:29:38
●NSns5.xserver.jp2026-04-06 → 2026-06-28 · 3 obs
● 2026-04-06 14:39:14
● 2026-06-28 12:29:38
○NSnsas1.firstserver.ne.jp2015-07-04 → 2016-12-20 · 5 obs
● 2015-07-04 21:35:00
● 2016-12-20 05:11:54
○ 2026-04-06 14:39:14
○ 2026-06-28 12:29:38
○NSnsas2.firstserver.ne.jp2015-07-04 → 2016-12-20 · 5 obs
● 2015-07-04 21:35:00
● 2016-12-20 05:11:54
○ 2026-04-06 14:39:14
○ 2026-06-28 12:29:38
●MXkazuoh.com2026-04-06 → 2026-06-28 · 3 obs
● 2026-04-06 14:39:14
● 2026-06-28 12:29:38
○MXmail.kazuoh.com2015-07-04 → 2016-12-20 · 5 obs
● 2015-07-04 21:35:00
● 2016-12-20 05:11:54
○ 2026-04-06 14:39:14
○ 2026-06-28 12:29:38
○MXmx1.firstserver.ne.jp2015-07-04 → 2016-12-20 · 5 obs
● 2015-07-04 21:35:00
● 2016-12-20 05:11:54
○ 2026-04-06 14:39:14
○ 2026-06-28 12:29:38
○MXmx2.firstserver.ne.jp2015-07-04 → 2016-12-20 · 5 obs
● 2015-07-04 21:35:00
● 2016-12-20 05:11:54
○ 2026-04-06 14:39:14
○ 2026-06-28 12:29:38
○MXrecvin.crayfish.net2008-12-26 → 2008-12-26 · 3 obs
○ 2015-07-04 21:35:00
○ 2026-06-28 12:29:38
●A157.112.183.642026-04-06 → 2026-06-28 · 3 obs
● 2026-04-06 14:39:14
● 2026-06-28 12:29:38
○A203.137.66.2202015-07-04 → 2016-12-20 · 5 obs
● 2015-07-04 21:35:00
● 2016-12-20 05:11:54
○ 2026-04-06 14:39:14
○ 2026-06-28 12:29:38
○A210.172.136.62008-12-26 → 2008-12-26 · 3 obs
○ 2015-07-04 21:35:00
○ 2026-06-28 12:29:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| kazuoh.com | ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp... | - |
✅ Authoritative Response
Server:202.226.39.247
NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kazuoh.com (unsigned zone)
⏱️ Timing
Total: 2210ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 157.112.183.64 |
| NS | 5 | ns1.xserver.jp, ns5.xserver.jp... |
| MX | 1 | kazuoh.com (pri: 0) |
| TXT | 4 | v=spf1 include:spf.kazuoh.com ~all, v=spf1 +a:sv5223.xserver.jp +a:kazuoh.co... |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
Analysis
Hierarchy
kazuoh.com is a parent domain of mail.kazuoh.com.
Mail Server Role
kazuoh.com is listed as a mail server for itself.
IP Addresses
kazuoh.com resolves to one IP address: 157.112.183.64.
www.navigate-inc.co.jp, nagaisangyo.jp, mail.dicweb.net and two other host names share IP numbers with kazuoh.com.
Name Servers
kazuoh.com has five name servers, which are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
kazuoh.com shares at least some of its name servers with other domains, including kuma-cl.com, sweets-ibaraki.com, s-visualarts.xsrv.jp and two others.
These name servers are frequently paired with the name servers ns4.xserver.jp and ns5.xserver.jp.
Hostnames that resolve to three IP addresses:
ns1.xserver.jp resolves to 202.226.36.164, 202.226.36.170 and 202.226.36.246.
ns4.xserver.jp resolves to 183.90.224.226, 183.90.224.230 and 202.226.39.247.
ns5.xserver.jp resolves to 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Hosts with just one IP address:
ns2.xserver.jp resolves to 35.72.43.26.
ns3.xserver.jp resolves to 202.226.36.247.
Mail Servers
Mail for kazuoh.com is handled by one mail server — kazuoh.com.
kazuoh.com points to one IP number — 157.112.183.64.