sidoc.vn - robtex.com
sidoc.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 171.244.49.78🇻🇳 VTDC-AS-VN171.244.48.0/22 Proxy-registered route object | ||||||
| NS | nsbak.dotvndns.com ⭐ | ||||||
| A | 2406:9c80::9000:302🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | nsbak.dotvndns.com | ||||||
| A | 112.213.89.22🇻🇳 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 | ns8922.dotvndns.vn | ||||||
| NS | ns1.dotvndns.vn | ||||||
| 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.dotvndns.vn | ||||||
| A | 2406:9c80::9000:111🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | ns2.dotvndns.vn | ||||||
| A | 222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT | ||||||
| PTR | static.vdc.vn | ||||||
| PTR | static.vnpt.vn | ||||||
| NS | ns3.dotvndns.vn | ||||||
| A | 112.213.89.22🇻🇳 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 | ns8922.dotvndns.vn | ||||||
| MX | mail.sidoc.vn ⭐ | ||||||
| A | 171.244.49.78🇻🇳 VTDC-AS-VN171.244.48.0/22 Proxy-registered route object | ||||||
| TXT | v=spf1 a mx ip4:171.244.49.78 -all | ||||||
| TXT | google-site-verification=ObPIntmw-s41RhQU2FHhDtBvM3jtZQbMVWgFEs-oSz4 | ||||||
| SOA | nsbak.dotvndns.comhostmaster@sidoc.vn 2026-05-18 #20 | ||||||
vn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn | ||||||
| NS | b.dns-servers.vn | ||||||
| NS | c.dns-servers.vn | ||||||
| NS | d.dns-servers.vn | ||||||
| NS | e.dns-servers.vn | ||||||
| NS | f.dns-servers.vn | ||||||
| NS | g.dns-servers.vn | ||||||
| NS | h.dns-servers.vn | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2030962831 | ||||||
Subdomains
sdbank.sidoc.vn |
mail.sidoc.vn |
sdbank-api.sidoc.vn |
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSns1.dotvndns.vn2026-06-06 → 2026-07-05 · 2 obs
● 2026-07-05 11:16:54
●NSns2.dotvndns.vn2026-06-06 → 2026-07-05 · 2 obs
● 2026-07-05 11:16:54
●NSns3.dotvndns.vn2026-06-06 → 2026-07-05 · 2 obs
● 2026-07-05 11:16:54
●NSnsbak.dotvndns.com2026-06-06 → 2026-07-05 · 2 obs
● 2026-07-05 11:16:54
●MXmail.sidoc.vn2026-06-13 → 2026-07-05 · 2 obs
● 2026-07-05 11:16:54
●A171.244.49.782026-06-13 → 2026-07-05 · 2 obs
● 2026-07-05 11:16:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | d.dns-servers.vn, h.dns-servers.vn, a.dns-servers.vn, c.dns-servers.vn... | 16 records |
| sidoc.vn | nsbak.dotvndns.com, ns2.dotvndns.vn, ns1.dotvndns.vn, ns3.dotvndns.vn | 4 records |
✅ Authoritative Response
Server:112.213.89.22
NS records: nsbak.dotvndns.com, ns2.dotvndns.vn, ns1.dotvndns.vn, ns3.dotvndns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sidoc.vn (unsigned zone)
⏱️ Timing
Total: 2012ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 171.244.49.78 |
| NS | 4 | ns2.dotvndns.vn, ns1.dotvndns.vn... |
| MX | 1 | mail.sidoc.vn (pri: 10) |
| TXT | 2 | google-site-verification=ObPIntmw-s41RhQ, v=spf1 a mx ip4:171.244.49.78 -all |
| SOA | 1 | nsbak.dotvndns.com hostmaster.sidoc.vn |
📌 Glue Records Collected
Total: 20
In-bailiwick: 16 (h.dns-servers.vn, g.dns-servers.vn, f.dns-servers.vn...)
Out-of-bailiwick: 4 (ns2.dotvndns.vn, ns1.dotvndns.vn, ns2.dotvndns.vn...)
Analysis
Hierarchy
sdbank.sidoc.vn, mail.sidoc.vn and sdbank-api.sidoc.vn each fall under the parent domain sidoc.vn.
IP Addresses
sidoc.vn points to a single IP number: 171.244.49.78.
Additional host names — mail.siten.vn, mail.sidoc.vn, qr.viettoc.vn and two others — share IP numbers with sidoc.vn.
Name Servers
sidoc.vn has four authoritative name servers: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn and ns3.dotvndns.vn.
sidoc.vn partially shares its NS delegation with several other domains, including amev.com.vn, dmgchemical.vn, qmatrix.space and two others.
The name servers ns1.pavietnam.vn, ns2.pavietnam.vn, nsbak.pavietnam.net and ns4.dotvndns.vn are often found in use alongside these name servers.
Host names with two IP numbers:
The A records for nsbak.dotvndns.com return 112.213.89.22 and 2406:9c80::9000:302.
The A records for ns2.dotvndns.vn return 222.255.121.247 and 2406:9c80::9000:111.
Host names pointing to a single IP address:
ns1.dotvndns.vn resolves to the IP address 112.213.89.3.
ns3.dotvndns.vn resolves to the IP address 112.213.89.22.
nsbak.dotvndns.com and ns3.dotvndns.vn each have 112.213.89.22 IP addresses.
Mail Servers
sidoc.vn has one mail server: mail.sidoc.vn.
mail.sidoc.vn resolves to 171.244.49.78 and no other IP number.