cogniplusvn.com - robtex.com
cogniplusvn.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.77.162.40🇻🇳 SUPERDATA103.77.162.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | varna.maychu.cloud | ||||||
| NS | ns1.zonedns.vn ⭐ ⚠️ Not in parent delegation | ||||||
| A | 2401:c080:1400:1cd4:5400:5ff:fe80:ec33🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix | ||||||
| A | 64.176.84.220🇸🇬 AS-VULTR64.176.80.0/20 Vultr Assigned Prefix | ||||||
| PTR | ns1.zonedns.vn | ||||||
| NS | ns2.zonedns.vn ⚠️ Not in parent delegation | ||||||
| A | 2401:c080:1400:1cd4:5400:5ff:fe80:ec33🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix | ||||||
| A | 103.176.178.51🇻🇳 NHAN-HOA-AS-VN103.176.178.0/24 NINETECH-VN | ||||||
| NS | ns2001.nhanhoa.com ⚠️ Not in zone NS records | ||||||
| A | 103.28.36.30🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN | ||||||
| NS | ns2002.nhanhoa.com ⚠️ Not in zone NS records | ||||||
| A | 64.176.84.220🇸🇬 AS-VULTR64.176.80.0/20 Vultr Assigned Prefix | ||||||
| PTR | ns1.zonedns.vn | ||||||
| NS | ns3.zonedns.vn ⚠️ Not in parent delegation | ||||||
| A | 2001:df1:3200::15🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN | ||||||
| A | 103.28.36.30🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN | ||||||
| MX | mail.cogniplusvn.com ⭐ | ||||||
| A | 112.213.93.170🇻🇳 SUPERDATA112.213.93.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | mail93170.maychuemail.com | ||||||
| TXT | google-site-verification=VbzfGNb3cWqkHjj0WLP-Dv4AwAuBKyzDk2MXZHi-z0k | ||||||
| TXT | v=spf1 include:spf.maychuemail.com ~all | ||||||
| SOA | ns1.zonedns.vnroot@cogniplusvn.com 2025-06-12 #4 | ||||||
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=1774675127 | ||||||
Subdomains
mail.cogniplusvn.com |
Same first word
cogniplusvn.com |
DNS History
11 records (7 active, 4 former)
●NSns1.zonedns.vn2015-07-05 → 2026-03-28 · 2 obs
● 2026-03-28 05:23:14
●NSns2.zonedns.vn2015-07-05 → 2026-03-28 · 2 obs
● 2026-03-28 05:23:14
●NSns2001.nhanhoa.com2026-02-23 → 2026-03-28 · 3 obs
● 2026-02-23 13:31:48
● 2026-03-28 05:23:14
●NSns2002.nhanhoa.com2026-02-23 → 2026-03-28 · 3 obs
● 2026-02-23 13:31:48
● 2026-03-28 05:23:14
●NSns3.zonedns.vn2015-07-05 → 2026-03-28 · 2 obs
● 2026-03-28 05:23:14
●MXmail.cogniplusvn.com2018-10-04 → 2026-03-28 · 3 obs
● 2018-10-04 12:28:36
● 2026-03-28 05:23:14
○MXmx.viettelidc.com.vn2015-07-05 → 2017-02-01 · 4 obs
● 2017-02-01 01:22:22
○ 2018-10-04 12:28:36
○ 2026-03-28 05:23:14
○A103.232.120.472015-07-05 → 2015-07-05 · 3 obs
○ 2015-11-14 12:11:08
○ 2026-03-28 05:23:14
●A103.77.162.402026-02-23 → 2026-03-28 · 3 obs
● 2026-02-23 13:31:48
● 2026-03-28 05:23:14
○A115.84.181.372015-11-14 → 2016-05-04 · 5 obs
● 2015-11-14 12:11:08
● 2016-05-04 14:56:26
○ 2017-02-01 01:22:22
○ 2026-03-28 05:23:14
○A119.81.50.2222017-02-01 → 2018-10-04 · 5 obs
● 2017-02-01 01:22:22
● 2018-10-04 12:28:36
○ 2026-02-23 13:31:48
○ 2026-03-28 05:23:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, m.gtld-servers.net, l.gtld-servers.net, e.gtld-servers.net... | - |
| cogniplusvn.com | ns2001.nhanhoa.com, ns2002.nhanhoa.com | 2 records |
✅ Authoritative Response
Server:103.28.36.30
NS records: ns2001.nhanhoa.com, ns2002.nhanhoa.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cogniplusvn.com (unsigned zone)
⏱️ Timing
Total: 3598ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.77.162.40 |
| NS | 3 | ns2.zonedns.vn, ns1.zonedns.vn... |
| MX | 1 | mail.cogniplusvn.com (pri: 10) |
| TXT | 2 | google-site-verification=VbzfGNb3cWqkHjj, v=spf1 include:spf.maychuemail.com ~all |
| SOA | 1 | ns1.zonedns.vn root.cogniplusvn.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2001.nhanhoa.com, ns2002.nhanhoa.com)
Analysis
Hierarchy
The parent of mail.cogniplusvn.com is cogniplusvn.com.
IP Addresses
cogniplusvn.com points to a single IP address: 103.77.162.40.
Other host names such as hcmoptic.com.vn, vantage-logistics.com.vn, com.chothuexedulichsaigon.com, euluxury.vn and gka.vn share IPs with cogniplusvn.com.
Name Servers
cogniplusvn.com is delegated to five name servers: ns2001.nhanhoa.com, ns2002.nhanhoa.com, ns1.zonedns.vn, ns2.zonedns.vn and ns3.zonedns.vn.
cogniplusvn.com at least partially shares name servers with other domains, for example insuna.vn, theptiendat.com, xaydungphvickhome.com, aivietnam.net and inhagia.net.
These name servers are commonly used with ns4.zonedns.vn and ns2008.nhanhoa.com.vn and ns2009.nhanhoa.com.vn.
Hostnames with two IP numbers:
Hostname ns1.zonedns.vn points to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 and 64.176.84.220.
Hostname ns2.zonedns.vn points to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 and 103.176.178.51.
Hostname ns3.zonedns.vn points to 2001:df1:3200::15 and 103.28.36.30.
Hostnames with one IP number:
Hostname ns2001.nhanhoa.com points to 103.28.36.30.
Hostname ns2002.nhanhoa.com points to 64.176.84.220.
Hostnames that point to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33: ns1.zonedns.vn and ns2.zonedns.vn.
Hostnames that point to 64.176.84.220: ns1.zonedns.vn and ns2002.nhanhoa.com.
Hostnames that point to 103.28.36.30: ns3.zonedns.vn and ns2001.nhanhoa.com.
Mail Servers
The mail.cogniplusvn.com mail server handles cogniplusvn.com.
mail.cogniplusvn.com points to a single IP number: 112.213.93.170.