knots-grp.com - robtex.com
knots-grp.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=1774682437 | ||||||
MX for
knots-grp.com |
Subdomains
mail.knots-grp.com |
Same first word
knots-grp.com |
DNS History
13 records (7 active, 6 former)
○NS01.dnsv.jp2016-12-21 → 2018-06-24 · 4 obs
● 2018-06-24 06:44:26
○ 2026-02-15 19:02:52
○ 2026-03-28 07:38:24
○NS02.dnsv.jp2016-12-21 → 2018-06-24 · 4 obs
● 2018-06-24 06:44:26
○ 2026-02-15 19:02:52
○ 2026-03-28 07:38:24
○NS03.dnsv.jp2016-12-21 → 2018-06-24 · 4 obs
● 2018-06-24 06:44:26
○ 2026-02-15 19:02:52
○ 2026-03-28 07:38:24
○NS04.dnsv.jp2016-12-21 → 2018-06-24 · 4 obs
● 2018-06-24 06:44:26
○ 2026-02-15 19:02:52
○ 2026-03-28 07:38:24
●NSns1.xserver.jp2026-02-15 → 2026-03-28 · 3 obs
● 2026-02-15 19:02:52
● 2026-03-28 07:38:24
●NSns2.xserver.jp2026-02-15 → 2026-03-28 · 3 obs
● 2026-02-15 19:02:52
● 2026-03-28 07:38:24
●NSns3.xserver.jp2026-02-15 → 2026-03-28 · 3 obs
● 2026-02-15 19:02:52
● 2026-03-28 07:38:24
●NSns4.xserver.jp2026-02-15 → 2026-03-28 · 3 obs
● 2026-02-15 19:02:52
● 2026-03-28 07:38:24
●NSns5.xserver.jp2026-02-15 → 2026-03-28 · 3 obs
● 2026-02-15 19:02:52
● 2026-03-28 07:38:24
●MXknots-grp.com2026-02-15 → 2026-03-28 · 3 obs
● 2026-02-15 19:02:52
● 2026-03-28 07:38:24
○MXmail.knots-grp.com2016-12-21 → 2018-06-24 · 4 obs
● 2018-06-24 06:44:26
○ 2026-02-15 19:02:52
○ 2026-03-28 07:38:24
○A180.222.187.2412016-12-21 → 2018-06-24 · 4 obs
● 2018-06-24 06:44:26
○ 2026-02-15 19:02:52
○ 2026-03-28 07:38:24
●A183.181.88.802026-02-15 → 2026-03-28 · 3 obs
● 2026-02-15 19:02:52
● 2026-03-28 07:38:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, b.gtld-servers.net, a.gtld-servers.net, c.gtld-servers.net... | - |
| knots-grp.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 knots-grp.com (unsigned zone)
⏱️ Timing
Total: 683ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.181.88.80 |
| NS | 5 | ns3.xserver.jp, ns4.xserver.jp... |
| MX | 1 | knots-grp.com (pri: 0) |
| TXT | 2 | google-site-verification=MGvKiA4JXj4N-Z5, v=spf1 +a:sv8079.xserver.jp +a:knots-grp |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
Analysis
Hierarchy
knots-grp.com is the parent of mail.knots-grp.com.
Mail Server Role
knots-grp.com serves as the mail server for knots-grp.com.
IP Addresses
knots-grp.com resolves to a single IP address: 183.181.88.80.
Other host names including freework.pro, inbody.info, attendfix.net, mx.nurse-saitama.jp and crtm.co.jp share IP numbers with knots-grp.com.
Name Servers
knots-grp.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
knots-grp.com at least partially shares name servers with other domains, including matsudasogo-lawoffice.com, salondem.com, detail.jp, numa1.com and fujiyamasan.com.
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
A single mail server handles knots-grp.com.
knots-grp.com points to a single IP: 183.181.88.80.