3721.com.cn - robtex.com
3721.com.cn
com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | c.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | cns.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | d.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | e.dns.cn ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2030714770 | ||||||
Same first word
3721.it |
3721.co.uk |
3721.eu |
3721.com.tw |
3721.tv |
3721.com.cn |
3721.net |
3721.de |
3721.ca |
3721.space |
3721.ws |
3721.cn |
3721.us |
3721.vip |
3721.cc |
3721.ru |
3721.com |
3721.bet |
3721.mobi |
Similar names
DNS History
5 records (2 active, 3 former)
●NSdns1.cscdns.net2026-05-21 → 2026-07-29 · 3 obs
● 2026-05-21 16:44:56
● 2026-07-29 20:11:46
●NSdns2.cscdns.net2026-05-21 → 2026-07-29 · 3 obs
● 2026-05-21 16:44:56
● 2026-07-29 20:11:46
○NSns1.markmonitor.com2015-06-03 → 2021-09-24 · 4 obs
● 2021-09-24 15:53:10
○ 2026-05-21 16:44:56
○ 2026-07-29 20:11:46
○NSns3.markmonitor.com2015-06-03 → 2021-09-24 · 4 obs
● 2021-09-24 15:53:10
○ 2026-05-21 16:44:56
○ 2026-07-29 20:11:46
○A93.191.168.522015-06-03 → 2021-09-24 · 4 obs
● 2021-09-24 15:53:10
○ 2026-05-21 16:44:56
○ 2026-07-29 20:11:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| 3721.com.cn | dns1.cscdns.net, dns2.cscdns.net | - |
✅ Authoritative Response
Server:156.154.131.100
NS records: dns1.cscdns.net, dns2.cscdns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 3721.com.cn (unsigned zone)
⏱️ Timing
Total: 788ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
Two name servers handle the delegation for 3721.com.cn: dns1.cscdns.net and dns2.cscdns.net.
3721.com.cn shares its NS records with other domains, for example elviatravel.ca, dessa.co.uk, bourjois.com.hk and two others.
3721.com.cn has at least partial name server overlap with other domains, such as plumyn.com, sodigital.io, glaxo.asia and two others.
It is common to see these name servers used together with name servers ns101.bac.com and ns102.bac.com.
dns1.cscdns.net and dns2.cscdns.net both carry two IP addresses. The A records for dns1.cscdns.net are 156.154.130.100 and 2610:a1:1022::100; the A records for dns2.cscdns.net are 156.154.131.100 and 2610:a1:1023::100.