cophuon.com - robtex.com
cophuon.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.57.221.28🇻🇳 VNPT-AS-VN103.57.220.0/22 INET-VN | ||||||
| NS | ns-master.inet.vn ⭐ | ||||||
| A | 202.92.4.8🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN | ||||||
| NS | ns1.inet.vn | ||||||
| A | 2001:df7:ce00:1::7🇻🇳 VNPT-AS-VN2001:df7:ce00::/48 INETSOFT-VN Inet software one member company limited | ||||||
| A | 202.92.4.25🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN | ||||||
| NS | ns2.inet.vn | ||||||
| A | 2401:5f80:2001:4::30🇻🇳 VTDC-AS-VN2401:5f80:2000::/36 VTDC-VN | ||||||
| A | 210.211.99.38🇻🇳 VTDC-AS-VN210.211.99.0/24 Proxy-registered route object | ||||||
| NS | ns3.inet.vn | ||||||
| A | 2401:5f80:4001:4::14🇻🇳 VTDC-AS-VN2401:5f80:4000::/36 VTDC-VN | ||||||
| A | 203.113.174.42🇻🇳 VTDC-AS-VN203.113.174.0/23 VIETTEL-VN | ||||||
| SOA | ns-master.inet.vnpostmaster@inet.vn 2015-07-28 #0 | ||||||
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=1778279486 | ||||||
Same first word
cophuon.com |
Similar names
DNS History
12 records (5 active, 7 former)
●NSns-master.inet.vn2015-08-03 → 2026-05-08 · 6 obs
● 2016-02-06 08:30:06
○ 2016-04-28 02:43:42
○ 2020-02-05 15:35:00
● 2026-03-27 07:41:20
● 2026-05-08 22:50:50
●NSns1.inet.vn2015-08-03 → 2026-05-08 · 6 obs
● 2016-02-06 08:30:06
○ 2016-04-28 02:43:42
○ 2020-02-05 15:35:00
● 2026-03-27 07:41:20
● 2026-05-08 22:50:50
○NSns1.tenten.vn2017-03-23 → 2017-03-23 · 4 obs
● 2017-03-23 09:54:44
○ 2020-02-05 15:35:00
○ 2026-05-08 22:50:50
○NSns1.tenten.vn.cophuon.com2017-03-23 → 2017-03-23 · 4 obs
● 2017-03-23 09:54:44
○ 2020-02-05 15:35:00
○ 2026-05-08 22:50:50
●NSns2.inet.vn2015-08-03 → 2026-05-08 · 6 obs
● 2016-02-06 08:30:06
○ 2016-04-28 02:43:42
○ 2020-02-05 15:35:00
● 2026-03-27 07:41:20
● 2026-05-08 22:50:50
○NSns2.tenten.vn2017-03-23 → 2017-03-23 · 4 obs
● 2017-03-23 09:54:44
○ 2020-02-05 15:35:00
○ 2026-05-08 22:50:50
●NSns3.inet.vn2026-03-27 → 2026-05-08 · 3 obs
● 2026-03-27 07:41:20
● 2026-05-08 22:50:50
○NSns3.tenten.vn2017-03-23 → 2017-03-23 · 4 obs
● 2017-03-23 09:54:44
○ 2020-02-05 15:35:00
○ 2026-05-08 22:50:50
○MXmail.cophuon.com2017-03-23 → 2017-03-23 · 3 obs
○ 2020-02-05 15:35:00
○ 2026-05-08 22:50:50
○A103.18.6.342017-03-23 → 2017-03-23 · 4 obs
● 2017-03-23 09:54:44
○ 2020-02-05 15:35:00
○ 2026-05-08 22:50:50
●A103.57.221.282026-03-27 → 2026-05-08 · 3 obs
● 2026-03-27 07:41:20
● 2026-05-08 22:50:50
○A123.30.50.1112015-08-03 → 2016-02-06 · 4 obs
● 2016-02-06 08:30:06
○ 2016-04-28 02:43:42
○ 2026-05-08 22:50:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cophuon.com | ns1.inet.vn, ns2.inet.vn, ns3.inet.vn | - |
✅ Authoritative Response
Server:203.113.174.42
NS records: ns1.inet.vn, ns2.inet.vn, ns3.inet.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cophuon.com (unsigned zone)
⏱️ Timing
Total: 1112ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.57.221.28 |
| NS | 3 | ns2.inet.vn, ns1.inet.vn... |
| SOA | 1 | ns-master.inet.vn postmaster.inet.vn |
Analysis
IP Addresses
cophuon.com points to a single IP number: 103.57.221.28.
Other host names, for instance cambienapsuat.net and hanquoc-emb.net, share IP numbers with cophuon.com.
Name Servers
cophuon.com is delegated to four name servers: ns-master.inet.vn, ns1.inet.vn, ns2.inet.vn and ns3.inet.vn.
cophuon.com shares name servers with other domains at least partially, for instance luongvinhkim.vn, abdgroup.com.vn, nongsanthanhcong.vn, tuvanxaydung.vn and petxinh.com.vn.
these name servers are commonly used together with hcmc3.saigonnet.vn and hcmc4.saigonnet.vn.
Host names with two IP numbers:
ns1.inet.vn points to: 2001:df7:ce00:1::7 and 202.92.4.25.
ns2.inet.vn points to: 2401:5f80:2001:4::30 and 210.211.99.38.
ns3.inet.vn points to: 2401:5f80:4001:4::14 and 203.113.174.42.
Host names with one IP number:
ns-master.inet.vn points to: 202.92.4.8.