ycku.cn - robtex.com
ycku.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | vip1.alidns.com ⚠️ Not in zone NS records | ||||||
| A | 2408:4009:500::1🇨🇳 Alibaba-Cloud2408:4009:500::/48 Alibaba Group | ||||||
| A | 8.212.93.1🇭🇰 Alibaba_Cloud_SEC8.212.93.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 140.205.1.1🇨🇳 Alibaba-Cloud140.205.1.0/24 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 170.33.32.208🇸🇬 Alibaba_Cloud_SEC170.33.32.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 170.33.73.24🇸🇬 Alibaba_Cloud_SEC170.33.73.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 170.33.80.8🇸🇬 Alibaba_Cloud_SEC170.33.80.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| NS | vip2.alidns.com ⚠️ Not in zone NS records | ||||||
| A | 2408:4009:500::2🇨🇳 Alibaba-Cloud2408:4009:500::/48 Alibaba Group | ||||||
| A | 8.212.93.2🇭🇰 Alibaba_Cloud_SEC8.212.93.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 140.205.1.2🇨🇳 Alibaba-Cloud140.205.1.0/24 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 170.33.32.209🇸🇬 Alibaba_Cloud_SEC170.33.32.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 170.33.73.25🇸🇬 Alibaba_Cloud_SEC170.33.73.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 170.33.80.9🇸🇬 Alibaba_Cloud_SEC170.33.80.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
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=2034772303 | ||||||
Same first word
Similar names
DNS History
8 records (2 active, 6 former)
○NSdns1.iidns.com2015-12-10 → 2017-07-09 · 5 obs
● 2015-12-10 05:25:14
● 2017-07-09 19:09:50
○ 2026-05-03 03:29:08
○ 2026-05-09 23:06:56
○NSdns2.iidns.com2015-12-10 → 2016-03-10 · 5 obs
● 2015-12-10 05:25:14
● 2016-03-10 14:19:36
○ 2026-05-03 03:29:08
○ 2026-05-09 23:06:56
○NSdns3.iidns.com2015-12-10 → 2016-03-10 · 5 obs
● 2015-12-10 05:25:14
● 2016-03-10 14:19:36
○ 2026-05-03 03:29:08
○ 2026-05-09 23:06:56
○NSdns4.iidns.com2015-12-10 → 2016-03-10 · 5 obs
● 2015-12-10 05:25:14
● 2016-03-10 14:19:36
○ 2026-05-03 03:29:08
○ 2026-05-09 23:06:56
○NSdns5.iidns.com2015-12-10 → 2016-03-10 · 5 obs
● 2015-12-10 05:25:14
● 2016-03-10 14:19:36
○ 2026-05-03 03:29:08
○ 2026-05-09 23:06:56
○NSdns6.iidns.com2015-08-16 → 2016-03-10 · 4 obs
● 2016-03-10 14:19:36
○ 2017-07-09 19:09:50
○ 2026-05-09 23:06:56
●NSvip1.alidns.com2026-05-03 → 2026-05-09 · 3 obs
● 2026-05-03 03:29:08
● 2026-05-09 23:06:56
●NSvip2.alidns.com2026-05-03 → 2026-05-09 · 3 obs
● 2026-05-03 03:29:08
● 2026-05-09 23:06:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| ycku.cn | vip1.alidns.com, vip2.alidns.com | - |
✅ Authoritative Response
Server:140.205.1.1
NS records: vip1.alidns.com, vip2.alidns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ycku.cn (unsigned zone)
⏱️ Timing
Total: 1371ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
ycku.cn has two name servers: vip1.alidns.com and vip2.alidns.com.
ycku.cn shares the same name server setup as other domains, for example winhlb.com, weixunyun.com, tax.vip, imianbao.com and cdp-life.com.
ycku.cn shares some name servers with other domains, for example huxx.top, tugraph.com.cn, genebanker.org, ivicos.com and luobolieshou.com.
These name servers are commonly used together with vip3.alidns.com and vip4.alidns.com.
Host names with six IP numbers: vip1.alidns.com points to: 2408:4009:500::1, 8.212.93.1, 140.205.1.1, 170.33.32.208, 170.33.73.24 and 170.33.80.8; vip2.alidns.com points to: 2408:4009:500::2, 8.212.93.2, 140.205.1.2, 170.33.32.209, 170.33.73.25 and 170.33.80.9.