szytlib.cn - robtex.com
szytlib.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 172.87.205.157🇺🇸 HENGTONG-1172.87.200.0/21 HT | ||||||
| NS | dm1.longmingdns.com ⭐ | ||||||
| A | 218.98.111.163🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| NS | dm2.longmingdns.com | ||||||
| A | 183.253.57.197🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| A | 211.99.99.56🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| SOA | dm1.longmingdns.comdnsadmin@longmingdns.com serial=1751342899 | ||||||
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=2034591459 | ||||||
Subdomains
www.szytlib.cn |
Same first word
szytlib.cn |
Similar names
DNS History
7 records (3 active, 4 former)
○NS(root)2015-08-23 → 2017-07-03 · 4 obs
● 2017-07-03 06:39:10
○ 2026-03-10 05:28:52
○ 2026-03-27 02:46:44
●NSdm1.longmingdns.com2026-03-10 → 2026-03-27 · 3 obs
● 2026-03-10 05:28:52
● 2026-03-27 02:46:44
●NSdm2.longmingdns.com2026-03-10 → 2026-03-27 · 3 obs
● 2026-03-10 05:28:52
● 2026-03-27 02:46:44
○MXmxbiz1.qq.com2015-08-23 → 2016-04-05 · 4 obs
● 2016-04-05 01:11:58
○ 2016-09-21 13:10:20
○ 2026-03-27 02:46:44
○MXmxbiz2.qq.com2015-08-23 → 2016-04-05 · 4 obs
● 2016-04-05 01:11:58
○ 2016-09-21 13:10:20
○ 2026-03-27 02:46:44
○A113.106.94.1552015-08-23 → 2017-07-03 · 4 obs
● 2017-07-03 06:39:10
○ 2026-03-10 05:28:52
○ 2026-03-27 02:46:44
●A172.87.205.1572026-03-10 → 2026-03-27 · 3 obs
● 2026-03-10 05:28:52
● 2026-03-27 02:46:44
🔍 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: 753ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Hierarchy
The parent of www.szytlib.cn is szytlib.cn.
IP Addresses
szytlib.cn points to a single IP: 172.87.205.157.
Other host names, such as www.szytlib.cn, share IP numbers with szytlib.cn.
Name Servers
Two name servers dm1.longmingdns.com and dm2.longmingdns.com handle delegation for szytlib.cn.
szytlib.cn uses the same name server setup as other domains, for example heind.cn, hgylvzh.cn, hmsjtc.com.cn, sdhcjn.cn and qmch.com.cn.
Host names with two IP numbers:
The host name dm2.longmingdns.com points to 183.253.57.197 and 211.99.99.56.
Host names with one IP number:
The host name dm1.longmingdns.com points to 218.98.111.163.