tight.co.jp - robtex.com
tight.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.181.99.7🇯🇵 XSERVER-AS183.181.98.0/23 XSERVER Inc. | ||||||
| PTR | sv106.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 ⚠️ Not in parent delegation | ||||||
| A | 157.112.191.237🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc. | ||||||
| PTR | ns3.xbiz.ne.jp | ||||||
| MX | tight.co.jp ⭐ | ||||||
| A | 183.181.99.7🇯🇵 XSERVER-AS183.181.98.0/23 XSERVER Inc. | ||||||
| PTR | sv106.xbiz.ne.jp | ||||||
| TXT | v=spf1 +a:sv106.xbiz.ne.jp +a:tight.co.jp +mx include:spf.sender.xserver.jp i... | ||||||
| SOA | ns1.xbiz.ne.jproot@xbiz.ne.jp serial=0 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
MX for
tight.co.jp |
Subdomains
mail.tight.co.jp |
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
○NSdns01.next-solutions.net2015-06-06 → 2017-02-12 · 4 obs
● 2017-02-12 23:28:32
○ 2026-04-09 16:13:18
○ 2026-05-11 13:52:02
○NSdns02.next-solutions.net2015-06-06 → 2017-02-12 · 4 obs
● 2017-02-12 23:28:32
○ 2026-04-09 16:13:18
○ 2026-05-11 13:52:02
●NSns1.xbiz.ne.jp2026-04-09 → 2026-05-11 · 3 obs
● 2026-04-09 16:13:18
● 2026-05-11 13:52:02
●NSns2.xbiz.ne.jp2026-04-09 → 2026-05-11 · 3 obs
● 2026-04-09 16:13:18
● 2026-05-11 13:52:02
●NSns3.xbiz.ne.jp2026-04-09 → 2026-05-11 · 3 obs
● 2026-04-09 16:13:18
● 2026-05-11 13:52:02
○MXmail.tight.co.jp2015-06-06 → 2017-02-12 · 4 obs
● 2017-02-12 23:28:32
○ 2026-04-09 16:13:18
○ 2026-05-11 13:52:02
●MXtight.co.jp2026-04-09 → 2026-05-11 · 3 obs
● 2026-04-09 16:13:18
● 2026-05-11 13:52:02
●A183.181.99.72026-04-09 → 2026-05-11 · 3 obs
● 2026-04-09 16:13:18
● 2026-05-11 13:52:02
○A210.140.173.852015-06-06 → 2016-04-18 · 4 obs
● 2016-04-18 17:10:12
○ 2017-02-12 23:28:32
○ 2026-05-11 13:52:02
○A23.236.62.1472017-02-12 → 2017-02-12 · 4 obs
● 2017-02-12 23:28:32
○ 2026-04-09 16:13:18
○ 2026-05-11 13:52:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| tight.co.jp | ns1.xbiz.ne.jp, ns2.xbiz.ne.jp | 2 records |
✅ Authoritative Response
Server:35.76.79.244
NS records: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tight.co.jp (unsigned zone)
⏱️ Timing
Total: 3513ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.181.99.7 |
| NS | 3 | ns3.xbiz.ne.jp, ns1.xbiz.ne.jp... |
| MX | 1 | tight.co.jp (pri: 0) |
| TXT | 1 | v=spf1 +a:sv106.xbiz.ne.jp +a:tight.co.j |
| SOA | 1 | ns1.xbiz.ne.jp root.xbiz.ne.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.xbiz.ne.jp, ns2.xbiz.ne.jp)
Analysis
Hierarchy
tight.co.jp is a parent of mail.tight.co.jp.
Mail Server Role
tight.co.jp serves as the mail server for tight.co.jp.
IP Addresses
tight.co.jp points to a single IP number: 183.181.99.7.
Other host names, for instance tugumiya.com, kuwanaya.co.jp, mail.gyokuzo.com, gyokuzo.com and canbee.jp share IP numbers with tight.co.jp.
Name Servers
The delegation for tight.co.jp is handled by three name servers: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.
tight.co.jp at least partially shares name servers with other domains, for instance matsuno(0x73686974)a.com, jbwu.org, kohara.net, towaco.co.jp and blaco.net.
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
A single mail server handles tight.co.jp.
tight.co.jp points to a single IP: 183.181.99.7.