ln.cn - robtex.com
ln.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ ⚠️ Not in parent delegation | ||||||
| A | 2001:dc7::1🇨🇳 CNNIC-CRITICAL-AP2001:dc7::/48 SICHUANIDC province network | ||||||
| PTR | a.dns.cn | ||||||
| A | 203.119.25.1🇨🇳 CNNIC-CRITICAL-AP203.119.25.0/24 China Internet Network Information Center (CNNIC) | ||||||
| PTR | a.dns.cn | ||||||
| NS | b.dns.cn ⚠️ Not in parent delegation | ||||||
| A | 2001:dc7:1::1🇨🇳 CNNIC-CRITICAL-AP2001:dc7:1::/48 SICHUANIDC province network | ||||||
| PTR | b.dns.cn | ||||||
| A | 203.119.26.1🇨🇳 CNNIC-CRITICAL-AP203.119.26.0/24 China Internet Network Information Center (CNNIC) | ||||||
| PTR | b.dns.cn | ||||||
| NS | c.dns.cn ⚠️ Not in parent delegation | ||||||
| A | 2001:dc7:2::1🇨🇳 CNNIC-CRITICAL-AP2001:dc7:2::/48 SICHUANIDC province network | ||||||
| PTR | c.dns.cn | ||||||
| A | 203.119.27.1🇨🇳 CNNIC-CRITICAL-AP203.119.27.0/24 China Internet Network Information Center (CNNIC) | ||||||
| PTR | c.dns.cn | ||||||
| NS | cns.cernet.net ⚠️ Not in parent delegation | ||||||
| A | 2001:250:c006::44🇨🇳 ERX-CERNET-BKB2001:250:c006::/48 | ||||||
| PTR | ns.cernet.net | ||||||
| A | 2001:da8:1:100::44🇨🇳 CNGI-CERNET2-AS-AP2001:da8::/32 | ||||||
| PTR | cns.cernet.net | ||||||
| PTR | ns.cernet.net | ||||||
| A | 2001:dd9::44🇨🇳 CRIS-CERNET-AS2001:dd9::/48 China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | ||||||
| PTR | cns.cernet.net | ||||||
| PTR | ns.cernet.net | ||||||
| A | 103.137.60.44🇨🇳 ERX-CERNET-BKB103.137.60.0/24 China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | ||||||
| PTR | cns.cernet.net | ||||||
| PTR | ns.cernet.net | ||||||
| A | 202.38.109.44🇨🇳 ERX-CERNET-BKB202.38.109.0/24 PACNET (proxy-registered route object) | ||||||
| A | 202.112.0.44🇨🇳 ERX-CERNET-BKB202.112.0.0/24 CMI (Customer Route) | ||||||
| PTR | ns.cernet.net | ||||||
| NS | d.dns.cn ⚠️ Not in parent delegation | ||||||
| A | 2001:dc7:1000::1🇨🇳 CNNIC-CRITICAL-AP2001:dc7:1000::/48 China Internet Network Information Center | ||||||
| PTR | d.dns.cn | ||||||
| A | 203.119.28.1🇨🇳 CNNIC-CRITICAL-AP203.119.28.0/24 China Internet Network Information Center (CNNIC) | ||||||
| PTR | d.dns.cn | ||||||
| NS | e.dns.cn ⚠️ Not in parent delegation | ||||||
| A | 2001:dc7:3::1🇨🇳 CNNIC-CRITICAL-AP2001:dc7:3::/48 SICHUANIDC province network | ||||||
| PTR | e.dns.cn | ||||||
| A | 203.119.29.1🇨🇳 CNNIC-CRITICAL-AP203.119.29.0/24 China Internet Network Information Center (CNNIC) | ||||||
| PTR | e.dns.cn | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2027235390 | ||||||
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=2035049375 | ||||||
Subdomains
Same first word
Similar names
DNS History
8 records (6 active, 2 former)
●NSa.dns.cn2009-07-04 → 2026-07-17 · 7 obs
● 2021-01-15 06:10:06
○ 2026-07-02 19:12:04
● 2026-07-02 21:37:22
○ 2026-07-14 13:25:32
● 2026-07-15 01:44:22
● 2026-07-17 03:02:16
●NSb.dns.cn2009-07-04 → 2026-07-17 · 7 obs
● 2021-01-15 06:10:06
○ 2026-07-02 19:12:04
● 2026-07-02 21:37:22
○ 2026-07-14 13:25:32
● 2026-07-15 01:44:22
● 2026-07-17 03:02:16
●NSc.dns.cn2009-07-04 → 2026-07-17 · 7 obs
● 2021-01-15 06:10:06
○ 2026-07-02 19:12:04
● 2026-07-02 21:37:22
○ 2026-07-14 13:25:32
● 2026-07-15 01:44:22
● 2026-07-17 03:02:16
●NScns.cernet.net2009-07-04 → 2026-07-17 · 7 obs
● 2021-01-15 06:10:06
○ 2026-07-02 19:12:04
● 2026-07-02 21:37:22
○ 2026-07-14 13:25:32
● 2026-07-15 01:44:22
● 2026-07-17 03:02:16
●NSd.dns.cn2009-07-04 → 2026-07-17 · 7 obs
● 2021-01-15 06:10:06
○ 2026-07-02 19:12:04
● 2026-07-02 21:37:22
○ 2026-07-14 13:25:32
● 2026-07-15 01:44:22
● 2026-07-17 03:02:16
●NSe.dns.cn2009-07-04 → 2026-07-17 · 7 obs
● 2021-01-15 06:10:06
○ 2026-07-02 19:12:04
● 2026-07-02 21:37:22
○ 2026-07-14 13:25:32
● 2026-07-15 01:44:22
● 2026-07-17 03:02:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
✅ Authoritative Response
Server:203.119.28.1
NS records: a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn, e.dns.cn
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 740ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 6 | a.dns.cn, b.dns.cn... |
| SOA | 1 | a.dns.cn root.cnnic.cn |
Analysis
Hierarchy
aabacollc.ln.cn, asptt.ln.cn, aabaco.ln.cn, djm.ln.cn, webex.ln.cn and hundreds of other host names are subdomains of ln.cn.
Name Servers
ln.cn delegates authority to 6 name servers: a.dns.cn, b.dns.cn, c.dns.cn plus 3 other.
ln.cn has at least partial name server overlap with other domains, such as mo.cn, fj.cn, dns.cn and two others.
These name servers tend to appear together with the name servers d.dns.cn, e.dns.cn and cns.cernet.net.
Hostnames that resolve to 6 IP addresses:
Hostname cns.cernet.net directs to 103.137.60.44, 202.38.109.44 and 202.112.0.44 along with 3 other IP addresses.
Hostnames that resolve to two IP addresses:
a.dns.cn directs traffic to 203.119.25.1 and 2001:dc7::1.
b.dns.cn directs traffic to 203.119.26.1 and 2001:dc7:1::1.
c.dns.cn directs traffic to 203.119.27.1 and 2001:dc7:2::1.
d.dns.cn directs traffic to 203.119.28.1 and 2001:dc7:1000::1.
e.dns.cn directs traffic to 203.119.29.1 and 2001:dc7:3::1.