oc-sys.com - dns.ninja
oc-sys.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 133.130.64.144🇯🇵 GMO-INTERNET133.130.64.0/18 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | www20.gmoserver.jp | ||||||
| NS | dns01.gmoserver.jp ⭐ | ||||||
| A | 157.7.33.81🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | dns01.gmoserver.jp | ||||||
| NS | dns02.gmoserver.jp | ||||||
| A | 157.7.34.81🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | dns02.gmoserver.jp | ||||||
| MX | mx20.gmoserver.jp ⭐ | ||||||
| A | 133.130.64.148🇯🇵 GMO-INTERNET133.130.64.0/18 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | mx20.gmoserver.jp | ||||||
| TXT | v=spf1 include:spf20.gmoserver.jp ~all | ||||||
| SOA | dns01.gmoserver.jphostmaster@oc-sys.com serial=1648874215 | ||||||
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=1786485184 | ||||||
Same first word
Similar names
ssy-co.jp |
sys-co.de |
sys-co.com |
cosy-s.com |
sys-co.se |
cos-sy.com |
sys-co.info |
sys-co.jp |
csy-os.com |
co-sys.com |
co-sys.co.nz |
DNS History
4 records (4 active, 0 former)
●NSdns01.gmoserver.jp2026-08-11 → 2026-08-11 · 2 obs
● 2026-08-11 22:13:36
●NSdns02.gmoserver.jp2026-08-11 → 2026-08-11 · 2 obs
● 2026-08-11 22:13:36
●MXmx20.gmoserver.jp2026-08-11 → 2026-08-11 · 2 obs
● 2026-08-11 22:13:36
●A133.130.64.1442026-08-11 → 2026-08-11 · 2 obs
● 2026-08-11 22:13:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| oc-sys.com | dns01.gmoserver.jp, dns02.gmoserver.jp | - |
✅ Authoritative Response
Server:157.7.33.81
NS records: dns01.gmoserver.jp, dns02.gmoserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for oc-sys.com (unsigned zone)
⏱️ Timing
Total: 893ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 133.130.64.144 |
| NS | 2 | dns01.gmoserver.jp, dns02.gmoserver.jp |
| MX | 1 | mx20.gmoserver.jp (pri: 10) |
| TXT | 1 | v=spf1 include:spf20.gmoserver.jp ~all |
| SOA | 1 | dns01.gmoserver.jp hostmaster.oc-sys.com |
Analysis
IP Addresses
oc-sys.com resolves to one IP address: 133.130.64.144.
blade-web.com, yamaichitosou.com, yoshi-n.com and two other host names share IP numbers with oc-sys.com.
Name Servers
oc-sys.com is delegated to two name servers: dns01.gmoserver.jp and dns02.gmoserver.jp.
oc-sys.com uses the same name servers as several other domains — among them katsunuma.tokyo, nanasi3.com, wakakuri.com and two more.
oc-sys.com shares at least some of its name servers with other domains, such as so-rituhome.co.jp.
Each of dns01.gmoserver.jp and dns02.gmoserver.jp has one IP address: dns01.gmoserver.jp uses 157.7.33.81 and dns02.gmoserver.jp uses 157.7.34.81.
Mail Servers
Mail for oc-sys.com is handled by a single mail server, mx20.gmoserver.jp.
oc-sys.com uses an identical mail server configuration to several other domains — among them gunnobi.com, tsuruin.com, carifami.com and two more.
oc-sys.com overlaps on mail servers with certain other domains, buzz-pass.com among them.
mx20.gmoserver.jp resolves to a single IP number: 133.130.64.148.