btechai.com.vn - robtex.com
btechai.com.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 153.92.11.88🇮🇩 IIHOS001153.92.11.0/24 | ||||||
| PTR | srv56.niagahoster.com | ||||||
| NS | ns1.viettelidc.com.vn ⭐ | ||||||
| A | 2401:5f80:2000:2::4VTDC-AS-VN2401:5f80:2000::/36 | ||||||
| A | 115.84.177.33 | ||||||
| NS | ns.viettelidc.com.vn | ||||||
| A | 2401:5f80:2000:1::5VTDC-AS-VN2401:5f80:2000::/36 | ||||||
| A | 115.84.177.8 | ||||||
| NS | ns2.viettelidc.com.vn | ||||||
| A | 2401:5f80:4000:1::4VTDC-AS-VN2401:5f80:4000::/36 | ||||||
| A | 115.84.181.10 | ||||||
| MX | mx.viettelidc.com.vn ⭐ | ||||||
| A | 103.1.208.155 | ||||||
| A | 103.1.208.156 | ||||||
| TXT | v=spf1 ip4:103.1.208.0/24 a mx -all | ||||||
| SOA | ns.viettelidc.com.vnhostmaster@btechai.com.vn serial=1783359749 | ||||||
com.vn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | b.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | c.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | d.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | e.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | f.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | g.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | h.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2022796743 | ||||||
Subdomains
api-icheckin.btechai.com.vn |
icheckin.btechai.com.vn |
Same first word
btechai.com.vn |
Similar names
DNS History
5 records (5 active, 0 former)
●NSns.viettelidc.com.vn2026-06-05 → 2026-07-08 · 2 obs
● 2026-07-08 21:24:46
●NSns1.viettelidc.com.vn2026-06-05 → 2026-07-08 · 2 obs
● 2026-07-08 21:24:46
●NSns2.viettelidc.com.vn2026-06-05 → 2026-07-08 · 2 obs
● 2026-07-08 21:24:46
●MXmx.viettelidc.com.vn2026-06-05 → 2026-07-08 · 2 obs
● 2026-07-08 21:24:46
●A153.92.11.882026-06-05 → 2026-07-08 · 2 obs
● 2026-07-08 21:24:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | 16 records |
| btechai.com.vn | ns2.viettelidc.com.vn, ns.viettelidc.com.vn, ns1.viettelidc.com.vn | 3 records |
✅ Authoritative Response
Server:115.84.177.33
NS records: ns2.viettelidc.com.vn, ns.viettelidc.com.vn, ns1.viettelidc.com.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for btechai.com.vn (unsigned zone)
⏱️ Timing
Total: 5347ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 153.92.11.88 |
| NS | 3 | ns.viettelidc.com.vn, ns1.viettelidc.com.vn... |
| MX | 1 | mx.viettelidc.com.vn (pri: 10) |
| TXT | 1 | v=spf1 ip4:103.1.208.0/24 a mx -all |
| SOA | 1 | ns.viettelidc.com.vn hostmaster.btechai. |
📌 Glue Records Collected
Total: 19
In-bailiwick: 16 (a.dns-servers.vn, a.dns-servers.vn, b.dns-servers.vn...)
Out-of-bailiwick: 3 (ns2.viettelidc.com.vn, ns1.viettelidc.com.vn, ns.viettelidc.com.vn)
Analysis
Hierarchy
api-icheckin.btechai.com.vn and icheckin.btechai.com.vn each fall under btechai.com.vn as their parent domain.
IP Addresses
btechai.com.vn resolves to just one IP address, 153.92.11.88.
Host names like ptktb.com are further examples that share IP numbers with btechai.com.vn.
Name Servers
btechai.com.vn carries NS records delegating to ns1.viettelidc.com.vn, ns2.viettelidc.com.vn and ns.viettelidc.com.vn.
btechai.com.vn has at least partial name server overlap with other domains, such as seask.net, paylater.vn, thcstanda.edu.vn and two others.
These name servers tend to appear together with the name servers ns1.vtmgroup.com.vn, ns2.vtmgroup.com.vn and ns.vtmgroup.com.vn.
ns1.viettelidc.com.vn, ns2.viettelidc.com.vn and ns.viettelidc.com.vn are three hostnames that each resolve to a pair of IP addresses: ns1.viettelidc.com.vn to 115.84.177.33 and 2401:5f80:2000:2::4, ns2.viettelidc.com.vn to 115.84.181.10 and 2401:5f80:4000:1::4, and ns.viettelidc.com.vn to 115.84.177.8 and 2401:5f80:2000:1::5.
Mail Servers
The sole mail server for btechai.com.vn is mx.viettelidc.com.vn.
Among the domains sharing a mail server setup with btechai.com.vn are daliensteel.com.vn, swinno.com.vn, chantroisang.vn and two others.
There is at least a partial MX overlap between btechai.com.vn and other domains, including a-c.com.vn, phuthanhhai.com, viicy.com and two others.
mx.viettelidc.com.vn has two IP addresses: 103.1.208.155 and 103.1.208.156.