isuc.cn - dns.ninja
isuc.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 47.242.204.9🇭🇰 Alibaba-Cloud47.242.0.0/16 Proxy-registered route object | ||||||
| NS | ns1.julydns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| 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 | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1773668948 | ||||||
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=2035074151 | ||||||
Subdomains
mail.isuc.cn |
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
●NSns1.judns.com2026-07-03 → 2026-07-22 · 3 obs
● 2026-07-03 18:27:06
● 2026-07-22 09:09:58
●NSns1.julydns.com2026-07-03 → 2026-07-22 · 3 obs
● 2026-07-03 18:27:06
● 2026-07-22 09:09:58
●NSns2.judns.com2026-07-03 → 2026-07-22 · 3 obs
● 2026-07-03 18:27:06
● 2026-07-22 09:09:58
●NSns2.julydns.com2026-07-03 → 2026-07-22 · 3 obs
● 2026-07-03 18:27:06
● 2026-07-22 09:09:58
○NSns7.cnolnic.net2015-08-07 → 2016-07-22 · 4 obs
● 2016-07-22 07:25:40
○ 2026-07-03 18:27:06
○ 2026-07-22 09:09:58
○NSns8.cnolnic.net2015-08-07 → 2016-07-22 · 4 obs
● 2016-07-22 07:25:40
○ 2026-07-03 18:27:06
○ 2026-07-22 09:09:58
○MXmail.isuc.cn2015-08-07 → 2016-07-22 · 4 obs
● 2016-07-22 07:25:40
○ 2026-07-03 18:27:06
○ 2026-07-22 09:09:58
○MXmm002.bohan-it.com2015-08-07 → 2016-07-22 · 4 obs
● 2016-07-22 07:25:40
○ 2026-07-03 18:27:06
○ 2026-07-22 09:09:58
○A210.16.190.572015-08-07 → 2016-07-22 · 4 obs
● 2016-07-22 07:25:40
○ 2026-07-03 18:27:06
○ 2026-07-22 09:09:58
●A47.242.204.92026-07-03 → 2026-07-22 · 3 obs
● 2026-07-03 18:27:06
● 2026-07-22 09:09:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| isuc.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 isuc.cn (unsigned zone)
⏱️ Timing
Total: 1302ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 47.242.204.9 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
Hierarchy
mail.isuc.cn is delegated beneath isuc.cn.
IP Addresses
isuc.cn directs to one IP number, which is 47.242.204.9.
Among the host names that share IP numbers with isuc.cn are hhnnko.com, xm-lsc.com, yiander.com and two others.
Name Servers
The domain isuc.cn is delegated to these four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
There is at least partial name server overlap between isuc.cn and other domains — jkdun.com, app-sn.com, mhmjc.com and two more among them.
These name servers frequently co-occur with the name servers ns1.onclouddns.com and ns2.onclouddns.com.
Each of ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com has a single IP address — ns1.judns.com and ns2.judns.com direct to 162.159.27.251, and ns1.julydns.com and ns2.julydns.com direct to 162.159.48.223.
ns1.judns.com and ns2.judns.com each have 162.159.27.251 IP addresses.
ns1.julydns.com and ns2.julydns.com each have 162.159.48.223 IP addresses.