721521.com - robtex.com
721521.com
| CNAME | overdue.aliyun.com | ||||||
| DNSSEC | ⚠️ Not signed | ||||||
| A | 170.33.12.185🇸🇬 Alibaba_Cloud_SEC170.33.12.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774380302 | ||||||
Same first word
721521.com |
Similar names
117225.cn |
172521.com |
715122.com |
512721.com |
252711.com |
751212.com |
227151.com |
117252.cn |
722151.vip |
112257.cn |
212517.com |
121257.com |
571212.net |
571122.com |
712125.com |
DNS History
9 records (3 active, 6 former)
○NS(root)2015-08-07 → 2016-07-16 · 5 obs
○ 2008-03-16 04:59:06
● 2015-08-07 09:57:52
● 2016-07-16 02:12:42
○ 2017-03-21 22:35:24
○ 2026-03-24 19:35:52
● 2015-08-07 09:57:52
● 2016-07-16 02:12:42
○ 2017-03-21 22:35:24
○ 2026-03-24 19:35:52
○NSdns1.iidns.com2017-03-21 → 2017-03-21 · 3 obs
○ 2016-07-16 02:12:42
● 2017-03-21 22:35:24
○ 2026-03-24 19:35:52
● 2017-03-21 22:35:24
○ 2026-03-24 19:35:52
●NSdns25.hichina.com2026-03-24 → 2026-03-24 · 2 obs
○ 2017-03-21 22:35:24
● 2026-03-24 19:35:52
● 2026-03-24 19:35:52
●NSdns26.hichina.com2026-03-24 → 2026-03-24 · 2 obs
○ 2017-03-21 22:35:24
● 2026-03-24 19:35:52
● 2026-03-24 19:35:52
○NSns1.dns-diy.com2008-03-16 → 2008-03-16 · 3 obs
● 2008-03-16 04:59:06
○ 2015-08-07 09:57:52
○ 2026-03-24 19:35:52
○ 2015-08-07 09:57:52
○ 2026-03-24 19:35:52
○NSns2.dns-diy.com2008-03-16 → 2008-03-16 · 3 obs
● 2008-03-16 04:59:06
○ 2015-08-07 09:57:52
○ 2026-03-24 19:35:52
○ 2015-08-07 09:57:52
○ 2026-03-24 19:35:52
○A203.156.231.2372015-08-07 → 2016-07-16 · 5 obs
○ 2008-03-16 04:59:06
● 2015-08-07 09:57:52
● 2016-07-16 02:12:42
○ 2017-03-21 22:35:24
○ 2026-03-24 19:35:52
● 2015-08-07 09:57:52
● 2016-07-16 02:12:42
○ 2017-03-21 22:35:24
○ 2026-03-24 19:35:52
○A219.148.87.822008-03-16 → 2008-03-16 · 3 obs
● 2008-03-16 04:59:06
○ 2015-08-07 09:57:52
○ 2026-03-24 19:35:52
○ 2015-08-07 09:57:52
○ 2026-03-24 19:35:52
●CNAMEoverdue.aliyun.com2026-03-24 → 2026-03-24 · 1 obs
● 2026-03-24 19:35:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 721521.com | dns25.hichina.com, dns26.hichina.com | 18 records |
✅ Authoritative Response
Server:120.76.107.39
NS records: dns25.hichina.com, dns26.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 721521.com (unsigned zone)
⏱️ Timing
Total: 1416ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns25.hichina.com, dns26.hichina.com |
| CNAME | 1 | overdue.aliyun.com |
| SOA | 1 | dns25.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (dns25.hichina.com, dns25.hichina.com, dns25.hichina.com...)
Analysis
IP Addresses
721521.com points to a single IP address: 170.33.12.185.
Other host names such as dzxf.cn, iztt.cn, lkex.cn, zdgh.cn and 0j6.cn share IP numbers with 721521.com.