sikoma.com - dns.ninja
sikoma.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 121.50.41.231🇯🇵 AS63997121.50.40.0/21 | ||||||
| PTR | lswph001.jpnsv.net | ||||||
| NS | ns1.tsukaeru.ne.jp ⭐ | ||||||
| A | 119.82.31.29 | ||||||
| NS | ns2.tsukaeru.ne.jp | ||||||
| A | 119.82.31.45 | ||||||
| MX | mail.sikoma.com ⭐ | ||||||
| A | 121.50.41.231🇯🇵 AS63997121.50.40.0/21 | ||||||
| PTR | lswph001.jpnsv.net | ||||||
| SOA | ns1.tsukaeru.ne.jpikomamail@gmail.com serial=1264470674 | ||||||
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=1791918829 | ||||||
Previously MX for
Subdomains
mail.sikoma.com |
Same first word
Similar names
Previous names
Next names
DNS History
8 records (4 active, 4 former)
●NSns1.tsukaeru.ne.jp2026-02-23 → 2026-10-13 · 3 obs
● 2026-02-23 11:13:34
● 2026-10-13 19:39:32
○NSns1.tsukaeru.net2015-06-06 → 2017-06-30 · 4 obs
● 2017-06-30 10:56:48
○ 2026-02-23 11:13:34
○ 2026-10-13 19:39:32
●NSns2.tsukaeru.ne.jp2026-02-23 → 2026-10-13 · 3 obs
● 2026-02-23 11:13:34
● 2026-10-13 19:39:32
○NSns2.tsukaeru.net2015-06-06 → 2017-06-30 · 4 obs
● 2017-06-30 10:56:48
○ 2026-02-23 11:13:34
○ 2026-10-13 19:39:32
●MXmail.sikoma.com2015-06-06 → 2026-10-13 · 2 obs
● 2026-10-13 19:39:32
○MXsikoma.com2015-06-06 → 2017-06-30 · 4 obs
● 2017-06-30 10:56:48
○ 2026-02-23 11:13:34
○ 2026-10-13 19:39:32
○A119.82.28.1332015-06-06 → 2017-06-30 · 4 obs
● 2017-06-30 10:56:48
○ 2026-02-23 11:13:34
○ 2026-10-13 19:39:32
●A121.50.41.2312026-02-23 → 2026-10-13 · 3 obs
● 2026-02-23 11:13:34
● 2026-10-13 19:39:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, d.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net... | - |
| sikoma.com | ns1.tsukaeru.ne.jp, ns2.tsukaeru.ne.jp | - |
✅ Authoritative Response
Server:119.82.31.45
NS records: ns1.tsukaeru.ne.jp, ns2.tsukaeru.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sikoma.com (unsigned zone)
⏱️ Timing
Total: 4712ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 121.50.41.231 |
| NS | 2 | ns2.tsukaeru.ne.jp, ns1.tsukaeru.ne.jp |
| MX | 1 | mail.sikoma.com (pri: 10) |
| SOA | 1 | ns1.tsukaeru.ne.jp ikomamail.gmail.com |
Analysis
Hierarchy
mail.sikoma.com is delegated beneath sikoma.com.
IP Addresses
sikoma.com points to a single IP number: 121.50.41.231.
Additional host names — sanada-net.co.jp, aboxjapan.jp, azetto.co.jp and two others — share IP numbers with sikoma.com.
Name Servers
sikoma.com is served by two delegated name servers, ns1.tsukaeru.ne.jp and ns2.tsukaeru.ne.jp.
sikoma.com shares its name server setup with other domains, including kokunai.info, famiboku.jp, yasuda-g.co.jp and two others.
There is at least partial name server overlap between sikoma.com and other domains — s-aira.site, iidagumitekkou.co.jp, 19.68.111.in-addr.arpa and two more among them.
The name servers ns.coason-dns.net, ns1.cloudmatika.com and ns4.scsvr.net are often found in combination with these name servers.
ns1.tsukaeru.ne.jp → 119.82.31.29 and ns2.tsukaeru.ne.jp → 119.82.31.45: one IP number per host name.
Mail Servers
sikoma.com has one mail server: mail.sikoma.com.
There is one IP number for mail.sikoma.com: 121.50.41.231.