7521.com - robtex.com
7521.com
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=1771291435 | ||||||
Same first word
Similar names
DNS History
19 records (3 active, 16 former)
○NSdns1.iidns.com2016-08-26 → 2016-08-26 · 4 obs
● 2016-08-26 02:07:08
○ 2017-05-19 03:33:32
○ 2026-03-23 17:55:52
○NSdns2.iidns.com2016-08-26 → 2016-08-26 · 4 obs
● 2016-08-26 02:07:08
○ 2017-05-19 03:33:32
○ 2026-03-23 17:55:52
○NSdns3.iidns.com2016-08-26 → 2016-08-26 · 4 obs
● 2016-08-26 02:07:08
○ 2017-05-19 03:33:32
○ 2026-03-23 17:55:52
○NSdns4.iidns.com2016-08-26 → 2016-08-26 · 4 obs
● 2016-08-26 02:07:08
○ 2017-05-19 03:33:32
○ 2026-03-23 17:55:52
○NSdns5.iidns.com2016-08-26 → 2016-08-26 · 4 obs
● 2016-08-26 02:07:08
○ 2017-05-19 03:33:32
○ 2026-03-23 17:55:52
○NSdns6.iidns.com2016-08-26 → 2016-08-26 · 4 obs
● 2016-08-26 02:07:08
○ 2017-05-19 03:33:32
○ 2026-03-23 17:55:52
●NSns1.alidns.com2026-03-19 → 2026-03-23 · 3 obs
● 2026-03-19 16:07:12
● 2026-03-23 17:55:52
○NSns1.dns.com.cn2008-03-19 → 2008-03-19 · 3 obs
○ 2015-06-16 06:21:28
○ 2026-03-23 17:55:52
○NSns1.sedoparking.com2015-06-16 → 2015-06-16 · 4 obs
● 2015-06-16 06:21:28
○ 2016-04-03 23:03:20
○ 2026-03-23 17:55:52
●NSns2.alidns.com2026-03-19 → 2026-03-23 · 3 obs
● 2026-03-19 16:07:12
● 2026-03-23 17:55:52
○NSns2.dns.com.cn2008-03-19 → 2008-03-19 · 3 obs
○ 2015-06-16 06:21:28
○ 2026-03-23 17:55:52
○NSns2.sedoparking.com2015-06-16 → 2015-06-16 · 4 obs
● 2015-06-16 06:21:28
○ 2016-04-03 23:03:20
○ 2026-03-23 17:55:52
○NSwww.7521.com2016-04-03 → 2016-04-03 · 4 obs
● 2016-04-03 23:03:20
○ 2016-08-26 02:07:08
○ 2026-03-23 17:55:52
○MXio.bouncemx.com2016-04-03 → 2016-04-03 · 4 obs
● 2016-04-03 23:03:20
○ 2016-08-26 02:07:08
○ 2026-03-23 17:55:52
○MXmail.nickstel.com2015-06-16 → 2015-06-16 · 4 obs
● 2015-06-16 06:21:28
○ 2016-04-03 23:03:20
○ 2026-03-23 17:55:52
●A43.248.187.692026-03-19 → 2026-03-23 · 3 obs
● 2026-03-19 16:07:12
● 2026-03-23 17:55:52
○A70.39.84.2492016-04-03 → 2016-04-03 · 4 obs
● 2016-04-03 23:03:20
○ 2016-08-26 02:07:08
○ 2026-03-23 17:55:52
○A72.52.4.902015-06-16 → 2015-06-16 · 4 obs
● 2015-06-16 06:21:28
○ 2016-04-03 23:03:20
○ 2026-03-23 17:55:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net... | - |
| 7521.com | ns1.alidns.com, ns2.alidns.com | 18 records |
✅ Authoritative Response
Server:120.76.107.45
NS records: ns1.alidns.com, ns2.alidns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 7521.com (unsigned zone)
⏱️ Timing
Total: 549ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 43.248.187.69 |
| NS | 2 | ns1.alidns.com, ns2.alidns.com |
| SOA | 1 | ns1.alidns.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (ns1.alidns.com, ns1.alidns.com, ns1.alidns.com...)
Analysis
IP Addresses
7521.com resolves to a single IP: 43.248.187.69.
Name Servers
7521.com has two name servers: ns1.alidns.com and ns2.alidns.com.
7521.com shares the same name server setup as other domains, for example cbea84d271013.beer, 167eb1c0510292.beer, lyhy.cc, 7c6d323801019.beer and pbkfk.cn.
7521.com shares some name servers with other domains, for example kaiqi.xin, souti.org, mmart.cn, aula.cn and shudan.com.cn.
These name servers are commonly used with the name servers dns11.hichina.com, dns12.hichina.com, dns13.hichina.com, dns14.hichina.com, ns7.alidns.com and ns8.alidns.com.
Host names with nine IP numbers:
ns1.alidns.com points to 2408:4009:501::1, 39.96.153.45, 39.96.153.55, 47.118.199.205, 47.118.199.215, 120.76.107.45, 120.76.107.55, 139.224.142.115 and 139.224.142.125.
ns2.alidns.com points to 2408:4009:501::2, 39.96.153.46, 39.96.153.56, 47.118.199.206, 47.118.199.216, 120.76.107.46, 120.76.107.56, 139.224.142.116 and 139.224.142.126.