useful-topics.com - robtex.com
useful-topics.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=1777318511 | ||||||
MX for
useful-topics.com |
Same first word
useful-topics.com |
DNS History
7 records (7 active, 0 former)
●NSns1.xserver.jp2017-09-07 → 2026-04-27 · 2 obs
● 2026-04-27 19:53:54
●NSns2.xserver.jp2017-09-07 → 2026-04-27 · 2 obs
● 2026-04-27 19:53:54
●NSns3.xserver.jp2017-09-07 → 2026-04-27 · 2 obs
● 2026-04-27 19:53:54
●NSns4.xserver.jp2017-09-07 → 2026-04-27 · 2 obs
● 2026-04-27 19:53:54
●NSns5.xserver.jp2017-09-07 → 2026-04-27 · 2 obs
● 2026-04-27 19:53:54
●MXuseful-topics.com2017-09-07 → 2026-04-27 · 2 obs
● 2026-04-27 19:53:54
●A183.90.238.532017-09-07 → 2026-04-27 · 2 obs
● 2026-04-27 19:53:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net... | - |
| useful-topics.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 useful-topics.com (unsigned zone)
⏱️ Timing
Total: 3095ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.90.238.53 |
| NS | 5 | ns5.xserver.jp, ns3.xserver.jp... |
| MX | 1 | useful-topics.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv2352.xserver.jp +a:useful-to |
| SOA | 1 | ns1.xserver.jp root.sv0.xserver.jp |
Analysis
Mail Server Role
useful-topics.com serves as the mail server for useful-topics.com.
IP Addresses
useful-topics.com points to IP number 183.90.238.53.
For instance, other host names petshop-ann.com, your-base-url.com, azusawaboen.com, adonust.com and asianboogie.com share IP numbers with useful-topics.com.
Name Servers
useful-topics.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
useful-topics.com shares name servers with other domains at least partially, for example benrityo.or.jp, k-aoyama-dental.com, cube-renovation.co.jp, tenjikaicollege.com and yours-value.jp.
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
useful-topics.com is handled by a single mail server, useful-topics.com.
useful-topics.com points to a single IP: 183.90.238.53.