portal-dev.com - robtex.com
portal-dev.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=1778697681 | ||||||
MX for
portal-dev.com |
Subdomains
books.portal-dev.com |
Same first word
portal-dev.com |
Similar names
DNS History
8 records (7 active, 1 former)
●NSns1.xserver.jp2015-07-24 → 2026-05-13 · 2 obs
● 2026-05-13 18:58:58
●NSns2.xserver.jp2015-07-24 → 2026-05-13 · 2 obs
● 2026-05-13 18:58:58
●NSns3.xserver.jp2015-07-24 → 2026-05-13 · 2 obs
● 2026-05-13 18:58:58
●NSns4.xserver.jp2015-07-24 → 2026-05-13 · 2 obs
● 2026-05-13 18:58:58
●NSns5.xserver.jp2015-07-24 → 2026-05-13 · 2 obs
● 2026-05-13 18:58:58
●MXportal-dev.com2015-07-24 → 2026-05-13 · 2 obs
● 2026-05-13 18:58:58
●A202.226.37.102026-04-22 → 2026-05-13 · 3 obs
● 2026-04-22 20:59:46
● 2026-05-13 18:58:58
○A210.188.201.102015-07-24 → 2017-10-26 · 4 obs
● 2017-10-26 15:30:12
○ 2026-04-22 20:59:46
○ 2026-05-13 18:58:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| portal-dev.com | ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp... | - |
✅ Authoritative Response
Server:157.112.182.220
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 portal-dev.com (unsigned zone)
⏱️ Timing
Total: 4023ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.226.37.10 |
| NS | 5 | ns2.xserver.jp, ns5.xserver.jp... |
| MX | 1 | portal-dev.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv57.xserver.jp +a:portal-dev. |
| SOA | 1 | ns1.xserver.jp root.sv0.xserver.jp |
Analysis
Hierarchy
portal-dev.com is a parent of books.portal-dev.com.
Mail Server Role
portal-dev.com serves as the mail server for portal-dev.com.
IP Addresses
portal-dev.com points to a single IP address: 202.226.37.10.
Other host names such as chiba-rb.or.jp, okamura.xsrv.jp, webmail.agent-group.net, hanahisho.com and emcreate.com share IP numbers with portal-dev.com.
Name Servers
portal-dev.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
At least part of the name servers for portal-dev.com are shared with other domains, for instance five-key-element.com, akaiwahihukakeiseigeka.com, fliteracy.jp, b-dash-baby.jp and kouei-medical.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
Mail for portal-dev.com is handled by a single mail server, portal-dev.com.
Host portal-dev.com points to IP 202.226.37.10.