coolfin.net - robtex.com
coolfin.net
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.dns.ne.jp ⚠️ Not in zone NS records | ||||||
| A | 61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | ns1.dns.ne.jp | ||||||
| NS | ns2.dns.ne.jp ⚠️ Not in zone NS records | ||||||
| A | 133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | ns2.dns.ne.jp | ||||||
net
| 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=1784809577 | ||||||
Previously MX for
coolfin.net |
Same first word
Similar names
DNS History
10 records (2 active, 8 former)
●NSns1.dns.ne.jp2026-06-24 → 2026-07-23 · 3 obs
● 2026-06-24 23:56:30
● 2026-07-23 12:51:06
○NSns1.xserver.jp2015-12-14 → 2017-10-10 · 4 obs
● 2017-10-10 01:35:38
○ 2026-06-24 23:56:30
○ 2026-07-23 12:51:06
●NSns2.dns.ne.jp2026-06-24 → 2026-07-23 · 3 obs
● 2026-06-24 23:56:30
● 2026-07-23 12:51:06
○NSns2.xserver.jp2015-12-14 → 2017-10-10 · 4 obs
● 2017-10-10 01:35:38
○ 2026-06-24 23:56:30
○ 2026-07-23 12:51:06
○NSns3.xserver.jp2015-12-14 → 2017-10-10 · 4 obs
● 2017-10-10 01:35:38
○ 2026-06-24 23:56:30
○ 2026-07-23 12:51:06
○NSns4.xserver.jp2015-12-14 → 2017-10-10 · 4 obs
● 2017-10-10 01:35:38
○ 2026-06-24 23:56:30
○ 2026-07-23 12:51:06
○NSns5.xserver.jp2015-12-14 → 2017-10-10 · 4 obs
● 2017-10-10 01:35:38
○ 2026-06-24 23:56:30
○ 2026-07-23 12:51:06
○MXcoolfin.net2015-12-14 → 2017-10-10 · 4 obs
● 2017-10-10 01:35:38
○ 2026-06-24 23:56:30
○ 2026-07-23 12:51:06
○A166.78.103.62015-08-10 → 2015-08-10 · 3 obs
○ 2015-12-14 19:09:38
○ 2026-07-23 12:51:06
○A210.188.201.682015-12-14 → 2017-10-10 · 5 obs
● 2015-12-14 19:09:38
● 2017-10-10 01:35:38
○ 2026-06-24 23:56:30
○ 2026-07-23 12:51:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| coolfin.net | ns1.dns.ne.jp, ns2.dns.ne.jp | - |
✅ Authoritative Response
Server:133.167.21.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coolfin.net (unsigned zone)
⏱️ Timing
Total: 1146ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
coolfin.net uses two name servers for its delegation: ns1.dns.ne.jp and ns2.dns.ne.jp.
coolfin.net shares its NS records with other domains, for example miyagi-roren.com, yama-elec.com, (0x73686974)ekiya.com and two others.
coolfin.net has at least partial name server overlap with other domains, such as realone.jp, lohasmedical.jp, ururico.com and two others.
It is common to find these name servers paired with the name servers master.dns.ne.jp.
ns1.dns.ne.jp directs to 61.211.236.1 and ns2.dns.ne.jp directs to 133.167.21.1; each host name points to exactly one IP number.