ichain21.cn - robtex.com
ichain21.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 177.210.144.20🇧🇷 UNSPECIFIED160.0.0.0/3 | ||||||
| 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=1774855260 | ||||||
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=2034785210 | ||||||
Subdomains
Same first word
ichain21.cn |
DNS History
6 records (5 active, 1 former)
●NSns1.julydns.com2026-03-24 → 2026-05-13 · 2 obs
● 2026-05-13 02:40:16
●NSns2.julydns.com2026-03-24 → 2026-05-13 · 2 obs
● 2026-05-13 02:40:16
●A177.210.144.202026-03-31 → 2026-05-13 · 3 obs
● 2026-03-31 04:09:38
● 2026-05-13 02:40:16
○A191.214.92.2472026-03-24 → 2026-03-29 · 4 obs
● 2026-03-29 12:11:30
○ 2026-03-31 04:09:38
○ 2026-05-13 02:40:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| ichain21.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 ichain21.cn (unsigned zone)
⏱️ Timing
Total: 2039ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 177.210.144.20 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
Hierarchy
ichain21.cn has m.ichain21.cn, share.ichain21.cn and www.ichain21.cn as children.
IP Addresses
ichain21.cn points to a single IP address: 177.210.144.20.
Other host names such as m.fflov.cn, www.orczpdwhn.cn, read.share.kytmtpq.cn, kytmtpq.cn and orczpdwhn.cn share IPs with ichain21.cn.
Name Servers
ichain21.cn is delegated to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
ichain21.cn at least partially shares name servers with other domains, for example ityi228.cn, nngm.com.cn, nccfyy120.com, cddpzs.com and fuleduolive.com.
These name servers are often used together with jm1.dns.com and jm2.dns.com.
ns1.judns.com points to 162.159.27.251
ns2.judns.com points to 162.159.27.251
ns1.julydns.com points to 162.159.48.223
ns2.julydns.com points to 162.159.48.223
ns1.judns.com and ns2.judns.com point to 162.159.27.251
ns1.julydns.com and ns2.julydns.com point to 162.159.48.223