dr-cos.com - robtex.com
dr-cos.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=1771291435 | ||||||
MX for
dr-cos.com |
Same first word
Similar names
DNS History
8 records (7 active, 1 former)
●NSns1.xserver.jp2015-08-04 → 2026-03-22 · 2 obs
● 2026-03-22 14:57:28
●NSns2.xserver.jp2015-08-04 → 2026-03-22 · 2 obs
● 2026-03-22 14:57:28
●NSns3.xserver.jp2015-08-04 → 2026-03-22 · 2 obs
● 2026-03-22 14:57:28
●NSns4.xserver.jp2015-08-04 → 2026-03-22 · 2 obs
● 2026-03-22 14:57:28
●NSns5.xserver.jp2015-08-04 → 2026-03-22 · 2 obs
● 2026-03-22 14:57:28
●MXdr-cos.com2015-08-04 → 2026-03-22 · 2 obs
● 2026-03-22 14:57:28
○A157.112.189.152015-08-04 → 2016-12-26 · 4 obs
● 2016-12-26 09:29:08
○ 2026-03-11 10:39:32
○ 2026-03-22 14:57:28
●A183.90.242.382026-03-11 → 2026-03-22 · 3 obs
● 2026-03-11 10:39:32
● 2026-03-22 14:57:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| dr-cos.com | ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp... | - |
✅ Authoritative Response
Server: 202.226.36.247
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 dr-cos.com (unsigned zone)
⏱️ Timing
Total: 1110ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.90.242.38 |
| NS | 5 | ns3.xserver.jp, ns2.xserver.jp... |
| MX | 1 | dr-cos.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv2137.xserver.jp +a:dr-cos.co |
| SOA | 1 | ns1.xserver.jp root.sv0.xserver.jp |
Analysis
Mail Server Role
For dr-cos.com, the mail server is dr-cos.com.
IP Addresses
dr-cos.com resolves to one IP number: 183.90.242.38.
other host names including localspida.net, shuji.jp, plaplus-project.jp, www.beauty-life-navi.com and kuro2.net share IP numbers with dr-cos.com.
Name Servers
dr-cos.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
dr-cos.com at least partially shares name servers with other domains, for instance repokara.com, bkjapan.org, koak.org, aqua-service24.com and marugoto-hp.com.
Host names with three IP numbers:
ns1.xserver.jp points to: 202.226.36.164, 202.226.36.170 and 202.226.36.246; ns4.xserver.jp points to: 183.90.224.226, 183.90.224.230 and 202.226.39.247; ns5.xserver.jp points to: 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Host names with one IP number:
ns2.xserver.jp points to: 35.72.43.26; ns3.xserver.jp points to: 202.226.36.247.
Mail Servers
dr-cos.com is served by a single mail server, dr-cos.com.
dr-cos.com resolves to IP 183.90.242.38.