bt-corp.com - robtex.com
bt-corp.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 115.79.201.39🇻🇳 VIETEL-AS-AP115.79.200.0/21 Proxy-registered route object | ||||||
| NS | ns1.tinnhathuy.com ⭐ | ||||||
| A | 112.213.89.3🇻🇳 SUPERDATA112.213.89.0/24 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 | ns1.dotvndns.vn | ||||||
| NS | ns2.tinnhathuy.com | ||||||
| A | 222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT | ||||||
| PTR | static.vdc.vn | ||||||
| PTR | static.vnpt.vn | ||||||
| MX | mail.bt-corp.com ⭐ | ||||||
| A | 115.75.177.193🇻🇳 VIETEL-AS-AP115.75.177.0/24 Proxy-registered route object | ||||||
| TXT | v=spf1 include:dn(0x736578)it.com -all | ||||||
| SOA | ns1.tinnhathuy.comhostmaster@bt-corp.com 2025-03-22 #11 | ||||||
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 | ||||||
Up
mail.bt-corp.com |
Same first word
bt-corp.com |
Similar names
DNS History
10 records (4 active, 6 former)
○NSns.gabia.co.kr2015-06-27 → 2017-03-14 · 4 obs
● 2017-03-14 11:52:46
○ 2020-01-03 07:34:08
○ 2026-02-27 19:48:32
○NSns.gabia.co.kr.bt-corp.com2015-06-27 → 2017-03-14 · 4 obs
● 2017-03-14 11:52:46
○ 2020-01-03 07:34:08
○ 2026-02-27 19:48:32
○NSns.gabia.net2015-06-27 → 2017-03-14 · 4 obs
● 2017-03-14 11:52:46
○ 2020-01-03 07:34:08
○ 2026-02-27 19:48:32
○NSns1.gabia.co.kr2015-06-27 → 2017-03-14 · 4 obs
● 2017-03-14 11:52:46
○ 2020-01-03 07:34:08
○ 2026-02-27 19:48:32
●NSns1.tinnhathuy.com2020-01-03 → 2026-02-27 · 3 obs
● 2020-01-03 07:34:08
● 2026-02-27 19:48:32
●NSns2.tinnhathuy.com2020-01-03 → 2026-02-27 · 3 obs
● 2020-01-03 07:34:08
● 2026-02-27 19:48:32
○MXalt.aspmx.daum.net2015-06-27 → 2017-03-14 · 4 obs
● 2017-03-14 11:52:46
○ 2020-01-03 07:34:08
○ 2026-02-27 19:48:32
○MXaspmx.daum.net2015-06-27 → 2017-03-14 · 4 obs
● 2017-03-14 11:52:46
○ 2020-01-03 07:34:08
○ 2026-02-27 19:48:32
●MXmail.bt-corp.com2020-01-03 → 2026-02-27 · 3 obs
● 2020-01-03 07:34:08
● 2026-02-27 19:48:32
●A115.79.201.392020-01-03 → 2026-02-27 · 2 obs
● 2026-02-27 19:48:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, k.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net... | - |
| bt-corp.com | ns1.tinnhathuy.com, ns2.tinnhathuy.com | 2 records |
✅ Authoritative Response
Server: 112.213.89.3
NS records: ns1.tinnhathuy.com, ns2.tinnhathuy.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bt-corp.com (unsigned zone)
⏱️ Timing
Total: 604ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 115.79.201.39 |
| NS | 2 | ns1.tinnhathuy.com, ns2.tinnhathuy.com |
| MX | 1 | mail.bt-corp.com (pri: 10) |
| TXT | 1 | v=spf1 include:dn(0x736578)it.com -all |
| SOA | 1 | ns1.tinnhathuy.com hostmaster.bt-corp.co |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.tinnhathuy.com, ns2.tinnhathuy.com)
AI analysis
The parent of mail.bt-corp.com is bt-corp.com.
bt-corp.com points to a single IP address: 115.79.201.39.
Other host names, such as nissinmedicalvn.com and mail2.khvietnam.com, share IP numbers with bt-corp.com.
Two name servers ns1.tinnhathuy.com and ns2.tinnhathuy.com handle the delegation for bt-corp.com.
bt-corp.com uses the same name server setup as other domains, for example nissinmedicalvn.com and tnhftp.com.
bt-corp.com shares name servers with other domains at least partially, for instance tinnhathuy.com.
these name servers commonly pair with ns1.dn(0x736578)it.com, ns2.dn(0x736578)it.com, ns3.dn(0x736578)it.com and ns4.dn(0x736578)it.com.
Host names with one IP number:
ns1.tinnhathuy.com points to 112.213.89.3; ns2.tinnhathuy.com points to 222.255.121.247.
The mail.bt-corp.com mail server handles bt-corp.com.
mail.bt-corp.com points to a single IP number: 115.75.177.193.