prost-inc.com - robtex.com
prost-inc.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=1786939404 | ||||||
MX for
prost-inc.com |
Subdomains
smtp.prost-inc.com |
Same first word
prost-inc.com |
Similar names
DNS History
11 records (7 active, 4 former)
●NSns1.xserver.jp2026-04-07 → 2026-08-17 · 3 obs
● 2026-04-07 23:21:28
● 2026-08-17 04:06:36
●NSns2.xserver.jp2026-04-07 → 2026-08-17 · 3 obs
● 2026-04-07 23:21:28
● 2026-08-17 04:06:36
●NSns3.xserver.jp2026-04-07 → 2026-08-17 · 3 obs
● 2026-04-07 23:21:28
● 2026-08-17 04:06:36
●NSns4.xserver.jp2026-04-07 → 2026-08-17 · 3 obs
● 2026-04-07 23:21:28
● 2026-08-17 04:06:36
●NSns5.xserver.jp2026-04-07 → 2026-08-17 · 3 obs
● 2026-04-07 23:21:28
● 2026-08-17 04:06:36
○NSusr-ns1.linkclub.jp2015-08-06 → 2017-01-28 · 4 obs
● 2017-01-28 14:19:38
○ 2026-04-07 23:21:28
○ 2026-08-17 04:06:36
○NSusr-ns2.linkclub.jp2015-08-06 → 2017-01-28 · 4 obs
● 2017-01-28 14:19:38
○ 2026-04-07 23:21:28
○ 2026-08-17 04:06:36
○MXmx.linkclub.jp2015-08-06 → 2017-01-28 · 4 obs
● 2017-01-28 14:19:38
○ 2026-04-07 23:21:28
○ 2026-08-17 04:06:36
●MXprost-inc.com2026-04-07 → 2026-08-17 · 3 obs
● 2026-04-07 23:21:28
● 2026-08-17 04:06:36
●A162.43.117.202026-04-07 → 2026-08-17 · 3 obs
● 2026-04-07 23:21:28
● 2026-08-17 04:06:36
○A219.118.71.1412015-08-06 → 2017-01-28 · 4 obs
● 2017-01-28 14:19:38
○ 2026-04-07 23:21:28
○ 2026-08-17 04:06:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net... | - |
| prost-inc.com | ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp... | - |
✅ Authoritative Response
Server:183.90.224.226
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 prost-inc.com (unsigned zone)
⏱️ Timing
Total: 548ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.43.117.20 |
| NS | 5 | ns1.xserver.jp, ns4.xserver.jp... |
| MX | 1 | prost-inc.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv13179.xserver.jp +a:prost-in |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
Analysis
Hierarchy
smtp.prost-inc.com is delegated beneath prost-inc.com.
Mail Server Role
prost-inc.com serves as a mail server for prost-inc.com.
IP Addresses
prost-inc.com has exactly one IP address — 162.43.117.20.
www.smasse.org, sv13179.xserver.jp, office-hashiguchi.com plus two other host names have IP numbers in common with prost-inc.com.
Name Servers
Five name servers handle delegation for prost-inc.com: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
There is at least partial name server overlap between prost-inc.com and other domains — skeleton-knight.com, akois.com, araitax.com and two more among them.
These name servers frequently co-occur with the name servers ns4.xserver.jp and ns5.xserver.jp.
Host names carrying three IP numbers:
The hostname ns1.xserver.jp directs to 202.226.36.164, 202.226.36.170 and 202.226.36.246.
The hostname ns4.xserver.jp directs to 183.90.224.226, 183.90.224.230 and 202.226.39.247.
The hostname ns5.xserver.jp directs to 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Host names resolving to a single IP address:
ns2.xserver.jp has the IP address 35.72.43.26.
ns3.xserver.jp has the IP address 202.226.36.247.
Mail Servers
prost-inc.com uses exactly one mail server, which is prost-inc.com.
prost-inc.com directs to just one IP number, 162.43.117.20.