optimization.cn - dns.ninja
optimization.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 208.98.40.36🇺🇸 SHARKTECH-1208.98.40.0/24 | ||||||
| NS | www.optimization.cn ⭐ | ||||||
| A | 208.98.43.40🇺🇸 SHARKTECH-1208.98.43.0/24 | ||||||
| PTR | ryanhomesmarketing.com | ||||||
| NS | ns1.4.cn ⚠️ Not in zone NS records | ||||||
| A | 107.167.27.66🇺🇸 SHARKTECH-1107.167.27.0/24 CMI (Customer Route) | ||||||
| NS | ns2.4.cn ⚠️ Not in zone NS records | ||||||
| A | 208.98.43.66🇺🇸 SHARKTECH-1208.98.43.0/24 | ||||||
| PTR | jensenstilbud.com | ||||||
| SOA | www.optimization.cnoptimization@cn 2008-08-03 #0 | ||||||
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=2035148490 | ||||||
Subdomains
www.optimization.cn |
Same first word
DNS History
18 records (4 active, 14 former)
●NSns1.4.cn2026-04-04 → 2026-08-06 · 3 obs
● 2026-04-04 10:04:54
● 2026-08-06 10:05:08
●NSns2.4.cn2026-04-04 → 2026-08-06 · 3 obs
● 2026-04-04 10:04:54
● 2026-08-06 10:05:08
●NSwww.optimization.cn2015-07-14 → 2026-08-06 · 8 obs
● 2026-04-05 11:34:48
○ 2026-06-08 05:07:34
● 2026-06-11 16:28:56
● 2026-06-15 21:48:26
○ 2026-06-27 05:53:22
● 2026-07-23 07:59:38
● 2026-08-06 10:05:08
○MXio.bouncemx.com2015-11-16 → 2017-01-20 · 4 obs
● 2017-01-20 10:49:20
○ 2018-08-30 19:10:06
○ 2026-08-06 10:05:08
○A208.98.40.2062026-04-05 → 2026-04-05 · 4 obs
● 2026-04-05 11:34:48
○ 2026-06-08 05:07:34
○ 2026-08-06 10:05:08
○A208.98.40.2072026-06-15 → 2026-06-15 · 4 obs
● 2026-06-15 19:18:46
○ 2026-06-15 21:48:26
○ 2026-08-06 10:05:08
○A208.98.40.2202026-04-04 → 2026-08-06 · 2 obs
○ 2026-08-06 10:05:08
●A208.98.40.362026-08-06 → 2026-08-06 · 2 obs
● 2026-08-06 10:05:08
○A208.98.40.712026-06-15 → 2026-06-15 · 4 obs
● 2026-06-15 21:48:26
○ 2026-06-27 05:53:22
○ 2026-08-06 10:05:08
○A208.98.43.312026-07-23 → 2026-07-23 · 3 obs
● 2026-07-23 07:59:38
○ 2026-08-06 10:05:08
○A208.98.43.772026-04-04 → 2026-04-04 · 4 obs
● 2026-04-04 10:04:54
○ 2026-04-05 11:34:48
○ 2026-08-06 10:05:08
○A208.98.43.792026-06-11 → 2026-06-11 · 4 obs
● 2026-06-11 16:28:56
○ 2026-06-15 19:18:46
○ 2026-08-06 10:05:08
○A70.39.84.2372015-11-16 → 2015-11-16 · 4 obs
● 2015-11-16 09:28:04
○ 2016-02-10 18:50:20
○ 2026-08-06 10:05:08
○A70.39.84.2402016-02-10 → 2016-02-10 · 4 obs
● 2016-02-10 18:50:20
○ 2016-04-28 01:58:30
○ 2026-08-06 10:05:08
○A70.39.84.2472017-01-20 → 2017-01-20 · 4 obs
● 2017-01-20 10:49:20
○ 2018-08-30 19:10:06
○ 2026-08-06 10:05:08
○A70.39.84.2492015-07-14 → 2015-07-14 · 3 obs
○ 2018-08-30 19:10:06
○ 2026-08-06 10:05:08
○A70.39.84.2502016-04-28 → 2016-04-28 · 4 obs
● 2016-04-28 01:58:30
○ 2017-01-20 10:49:20
○ 2026-08-06 10:05:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| optimization.cn | ns1.4.cn, ns2.4.cn | - |
✅ Authoritative Response
Server:208.98.43.66
NS records: ns1.4.cn, ns2.4.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for optimization.cn (unsigned zone)
⏱️ Timing
Total: 2218ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 208.98.40.36 |
| SOA | 1 | www.optimization.cn optimization.cn |
Analysis
Hierarchy
www.optimization.cn is a subdomain of optimization.cn.
IP Addresses
optimization.cn points to a single IP number: 208.98.40.36.
Additional host names — www.www.www.ns5.sinobnet.com, hjshg.cn, 2fin.com and two others — share IP numbers with optimization.cn.
Name Servers
optimization.cn is delegated to three name servers: ns1.4.cn, ns2.4.cn and www.optimization.cn.
The name servers of optimization.cn overlap at least partially with those of other domains — among them ztr.cn, texie.cn, privacy.com.cn and two more.
These name servers commonly appear in delegations together with ns3.4.cn, ns4.4.cn, www.ztr.cn and 3 other.
ns1.4.cn, ns2.4.cn and www.optimization.cn each resolve to a single IP address: ns1.4.cn resolves to 107.167.27.66, ns2.4.cn resolves to 208.98.43.66 and www.optimization.cn resolves to 208.98.43.40.