dcool.cn - dns.ninja
dcool.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2034980878 | ||||||
Same first word
Similar names
DNS History
10 records (2 active, 8 former)
○NSdns10.hichina.com2015-11-06 → 2016-12-25 · 4 obs
● 2016-12-25 07:49:52
○ 2026-02-28 09:13:30
○ 2026-06-29 00:31:58
○NSdns9.hichina.com2015-11-06 → 2016-12-25 · 4 obs
● 2016-12-25 07:49:52
○ 2026-02-28 09:13:30
○ 2026-06-29 00:31:58
●NSns1.judns.com2026-02-28 → 2026-06-29 · 3 obs
● 2026-02-28 09:13:30
● 2026-06-29 00:31:58
○NSns1.julydns.com2026-02-28 → 2026-06-17 · 4 obs
● 2026-02-28 09:13:30
● 2026-06-17 21:14:54
○ 2026-06-29 00:31:58
●NSns2.judns.com2026-02-28 → 2026-06-29 · 3 obs
● 2026-02-28 09:13:30
● 2026-06-29 00:31:58
○NSns2.julydns.com2026-02-28 → 2026-06-17 · 4 obs
● 2026-02-28 09:13:30
● 2026-06-17 21:14:54
○ 2026-06-29 00:31:58
○MXmxn.mxhichina.com2016-12-03 → 2016-12-25 · 4 obs
● 2016-12-25 07:49:52
○ 2026-02-28 09:13:30
○ 2026-06-29 00:31:58
○MXmxw.mxhichina.com2016-12-03 → 2016-12-25 · 4 obs
● 2016-12-25 07:49:52
○ 2026-02-28 09:13:30
○ 2026-06-29 00:31:58
○A154.91.188.132026-02-28 → 2026-06-17 · 4 obs
● 2026-02-28 09:13:30
● 2026-06-17 21:14:54
○ 2026-06-29 00:31:58
○A74.82.63.2282015-07-01 → 2015-07-01 · 3 obs
○ 2015-11-06 15:04:58
○ 2026-06-29 00:31:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, c.dns.cn, b.dns.cn, d.dns.cn... | - |
| dcool.cn | ns1.judns.com, ns2.judns.com | - |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.judns.com, ns2.judns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dcool.cn (unsigned zone)
⏱️ Timing
Total: 1318ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 154.91.188.13 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
Name Servers
The NS records for dcool.cn delegate to ns1.judns.com and ns2.judns.com.
dcool.cn shares its NS records with other domains, for example szshxqcpjc.com, hjajigio3.cn, saipei.cn and two others.
dcool.cn shares at least some of its name servers with other domains, including smwzb.com, ks-hzx.com, tianiu.net and two others.
These name servers are frequently seen alongside the name servers ns1.julydns.com, ns2.julydns.com, jm1.dns.com and jm2.dns.com.
Each of ns1.judns.com and ns2.judns.com points to exactly one IP address: 162.159.27.251.
ns1.judns.com and ns2.judns.com each have 162.159.27.251 IP addresses.