frontier-inc.com - robtex.com
frontier-inc.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.254.238.4🇯🇵 XSERVER-AS202.254.236.0/22 XSERVER Inc. | ||||||
| PTR | sv3.xbiz.ne.jp | ||||||
| NS | ns1.xbiz.ne.jp ⭐ | ||||||
| A | 157.112.182.247🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc. | ||||||
| PTR | ns1.xbiz.ne.jp | ||||||
| NS | ns2.xbiz.ne.jp | ||||||
| A | 35.76.79.244🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix | ||||||
| PTR | ns2.xbiz.ne.jp | ||||||
| NS | ns3.xbiz.ne.jp | ||||||
| A | 157.112.191.237🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc. | ||||||
| PTR | ns3.xbiz.ne.jp | ||||||
| MX | frontier-inc.com ⭐ | ||||||
| A | 202.254.238.4🇯🇵 XSERVER-AS202.254.236.0/22 XSERVER Inc. | ||||||
| PTR | sv3.xbiz.ne.jp | ||||||
| TXT | v=spf1 +a:sv3.xbiz.ne.jp +a:frontier-inc.com +mx include:spf.sender.xserver.j... | ||||||
| SOA | ns1.xbiz.ne.jproot@xbiz.ne.jp serial=0 | ||||||
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=1774633287 | ||||||
MX for
frontier-inc.com |
Subdomains
mail.frontier-inc.com |
Same first word
frontier-inc.com |
DNS History
11 records (5 active, 6 former)
●NSns1.xbiz.ne.jp2020-01-20 → 2026-03-27 · 3 obs
● 2020-01-20 18:05:28
● 2026-03-27 17:47:34
●NSns2.xbiz.ne.jp2020-01-20 → 2026-03-27 · 3 obs
● 2020-01-20 18:05:28
● 2026-03-27 17:47:34
●NSns3.xbiz.ne.jp2020-01-20 → 2026-03-27 · 3 obs
● 2020-01-20 18:05:28
● 2026-03-27 17:47:34
○NSnsas1.firstserver.ne.jp2015-06-06 → 2017-02-17 · 5 obs
● 2015-06-06 11:52:46
● 2017-02-17 11:37:34
○ 2020-01-20 18:05:28
○ 2026-03-27 17:47:34
○NSnsas2.firstserver.ne.jp2015-06-06 → 2017-02-17 · 5 obs
● 2015-06-06 11:52:46
● 2017-02-17 11:37:34
○ 2020-01-20 18:05:28
○ 2026-03-27 17:47:34
●MXfrontier-inc.com2020-01-20 → 2026-03-27 · 3 obs
● 2020-01-20 18:05:28
● 2026-03-27 17:47:34
○MXmail.frontier-inc.com2015-06-06 → 2017-02-17 · 5 obs
● 2015-06-06 11:52:46
● 2017-02-17 11:37:34
○ 2020-01-20 18:05:28
○ 2026-03-27 17:47:34
○MXmx1.firstserver.ne.jp2015-06-06 → 2017-02-17 · 5 obs
● 2015-06-06 11:52:46
● 2017-02-17 11:37:34
○ 2020-01-20 18:05:28
○ 2026-03-27 17:47:34
○MXmx2.firstserver.ne.jp2015-06-06 → 2017-02-17 · 5 obs
● 2015-06-06 11:52:46
● 2017-02-17 11:37:34
○ 2020-01-20 18:05:28
○ 2026-03-27 17:47:34
●A202.254.238.42020-01-20 → 2026-03-27 · 3 obs
● 2020-01-20 18:05:28
● 2026-03-27 17:47:34
○A203.183.209.1312015-06-06 → 2017-02-17 · 5 obs
● 2015-06-06 11:52:46
● 2017-02-17 11:37:34
○ 2020-01-20 18:05:28
○ 2026-03-27 17:47:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, l.gtld-servers.net, j.gtld-servers.net, b.gtld-servers.net... | - |
| frontier-inc.com | ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp | - |
✅ Authoritative Response
Server:35.76.79.244
NS records: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for frontier-inc.com (unsigned zone)
⏱️ Timing
Total: 1139ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.254.238.4 |
| NS | 3 | ns3.xbiz.ne.jp, ns2.xbiz.ne.jp... |
| MX | 1 | frontier-inc.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv3.xbiz.ne.jp +a:frontier-inc |
| SOA | 1 | ns1.xbiz.ne.jp root.xbiz.ne.jp |
Analysis
Hierarchy
frontier-inc.com is the parent of mail.frontier-inc.com.
Mail Server Role
For frontier-inc.com, the mail server is frontier-inc.com.
IP Addresses
frontier-inc.com resolves to one IP number: 202.254.238.4.
other host names including fukusenkai.co.jp, mail.congas.co.jp, marusakogyo.com, star-career-ict.com and kensaki.jp share IP numbers with frontier-inc.com.
Name Servers
frontier-inc.com is delegated to three name servers ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.
frontier-inc.com at least partially shares name servers with other domains, for instance tomokiyo.co.jp, obiki.net, isshikishokai.com, sagaplant.co.jp and kunoya.com.
Host names with one IP number: ns1.xbiz.ne.jp points to 157.112.182.247; ns2.xbiz.ne.jp points to 35.76.79.244; ns3.xbiz.ne.jp points to 157.112.191.237.
Mail Servers
frontier-inc.com is served by a single mail server, frontier-inc.com.
frontier-inc.com resolves to IP 202.254.238.4.