kzsys.com - dns.ninja
kzsys.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 133.167.8.90🇯🇵 SAKURA-C133.167.0.0/16 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | www5180.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 | kzsys.com ⭐ | ||||||
| A | 133.167.8.90🇯🇵 SAKURA-C133.167.0.0/16 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | www5180.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www5180.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2025-02-26 #2 | ||||||
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=1783994022 | ||||||
MX for
kzsys.com |
Subdomains
Same first word
kzsys.com |
Similar names
zssky.com |
szsky.com |
zssky.cn |
kszys.net |
skysz.com |
zksys.cn |
szsyk.com |
yszks.com |
szkys.cn |
ksyzs.com |
zksys.org |
zksys.com |
ksysz.com |
syksz.com |
szksy.com |
skyzs.com |
szsky.com.cn |
zskys.com |
szsky.cn |
skysz.net |
yszsk.cn |
kszys.com |
DNS History
9 records (5 active, 4 former)
●NSmaster.dns.ne.jp2026-02-20 → 2026-07-14 · 3 obs
● 2026-02-20 17:41:58
● 2026-07-14 02:08:50
●NSns1.dns.ne.jp2026-02-20 → 2026-07-14 · 3 obs
● 2026-02-20 17:41:58
● 2026-07-14 02:08:50
○NSns1.hosting-sys.jp2015-08-07 → 2016-07-20 · 4 obs
● 2016-07-20 11:32:58
○ 2026-02-20 17:41:58
○ 2026-07-14 02:08:50
●NSns2.dns.ne.jp2026-02-20 → 2026-07-14 · 3 obs
● 2026-02-20 17:41:58
● 2026-07-14 02:08:50
○NSns2.hosting-sys.jp2015-08-07 → 2016-07-20 · 4 obs
● 2016-07-20 11:32:58
○ 2026-02-20 17:41:58
○ 2026-07-14 02:08:50
●MXkzsys.com2026-02-20 → 2026-07-14 · 3 obs
● 2026-02-20 17:41:58
● 2026-07-14 02:08:50
○MXmail.kzsys.com2015-08-07 → 2016-07-20 · 4 obs
● 2016-07-20 11:32:58
○ 2026-02-20 17:41:58
○ 2026-07-14 02:08:50
○A125.206.125.1982015-08-07 → 2016-07-20 · 4 obs
● 2016-07-20 11:32:58
○ 2026-02-20 17:41:58
○ 2026-07-14 02:08:50
●A133.167.8.902026-02-20 → 2026-07-14 · 3 obs
● 2026-02-20 17:41:58
● 2026-07-14 02:08:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, l.gtld-servers.net... | - |
| kzsys.com | 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 kzsys.com (unsigned zone)
⏱️ Timing
Total: 1774ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 133.167.8.90 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | kzsys.com (pri: 10) |
| TXT | 1 | v=spf1 a:www5180.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Hierarchy
www.kzsys.com and mail.kzsys.com are both subdomains of kzsys.com.
Mail Server Role
kzsys.com is listed as a mail server for itself.
IP Addresses
kzsys.com resolves to one IP address: 133.167.8.90.
hirotaka.net, google.nekorobeshi.jp, hr-partners.co.jp and two other host names share IP numbers with kzsys.com.
Name Servers
kzsys.com has three name servers — master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
There is at least partial name server overlap between kzsys.com and other domains — cf-wheel.com, rhetoric-framework.com, 011labs.sakura.ne.jp and two more among them.
These name servers are routinely deployed together with the name servers dns.sakura.ad.jp.
Each of the three hostnames points to exactly one IP address: master.dns.ne.jp points to 210.224.172.18, ns1.dns.ne.jp points to 61.211.236.1 and ns2.dns.ne.jp points to 133.167.21.1.
Mail Servers
Mail for kzsys.com is handled by one mail server — kzsys.com.
kzsys.com points to one IP number — 133.167.8.90.