cau1thanglong.com - robtex.com
cau1thanglong.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.245.8.134🇻🇳 FPT-AS-AP210.245.8.0/21 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| NS | ns1.dotvndns.vn ⭐ ⚠️ Not in parent delegation | ||||||
| A | 2406:9c80::66🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | 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 | ns1.sapo.vn ⚠️ Not in zone NS records | ||||||
| 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 ⚠️ Not in parent delegation | ||||||
| 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 | ns2.sapo.vn ⚠️ Not in zone NS records | ||||||
| A | 222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT | ||||||
| PTR | static.vdc.vn | ||||||
| PTR | static.vnpt.vn | ||||||
| MX | mail.cau1thanglong.com ⭐ | ||||||
| A | 210.245.8.134🇻🇳 FPT-AS-AP210.245.8.0/21 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| TXT | v=spf1 a mx ~all | ||||||
| SOA | ns1.dotvndns.vnhostmaster@cau1thanglong.com 2025-11-07 #2 | ||||||
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=1778336556 | ||||||
Same first word
cau1thanglong.com |
DNS History
6 records (6 active, 0 former)
●NSns1.dotvndns.vn2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 14:39:42
●NSns2.dotvndns.vn2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 14:39:42
●MXmail.cau1thanglong.com2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 14:39:42
●A210.245.8.1342026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 14:39:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net... | - |
| cau1thanglong.com | ns1.sapo.vn, ns2.sapo.vn | - |
✅ Authoritative Response
Server:112.213.89.3
NS records: ns1.sapo.vn, ns2.sapo.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cau1thanglong.com (unsigned zone)
⏱️ Timing
Total: 1015ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.245.8.134 |
| NS | 2 | ns2.dotvndns.vn, ns1.dotvndns.vn |
| MX | 1 | mail.cau1thanglong.com (pri: 10) |
| TXT | 1 | v=spf1 a mx ~all |
| SOA | 1 | ns1.dotvndns.vn hostmaster.cau1thanglong |
Analysis
IP Addresses
cau1thanglong.com points to a single IP: 210.245.8.134.
Other host names, for instance www.dienmayhuongvinh.vn, mail.huongbansi.com, moneysbeauty.vn, survey.sapocorp.net and mail.inoxanhviet.com share IP numbers with cau1thanglong.com.
Name Servers
cau1thanglong.com's delegation is handled by four name servers: ns1.dotvndns.vn, ns2.dotvndns.vn, ns1.sapo.vn and ns2.sapo.vn.
cau1thanglong.com partially shares name servers with other domains; examples include vietgap.com.vn, phutungxangdau.vn, longlongchem.com, tuoitrehaiduong.vn and dofico.com.vn.
These name servers are often used with nsbak.dotvndns.com, ns1.pavietnam.vn, ns3.dotvndns.vn, ns2.pavietnam.vn, nsbak.pavietnam.net, ns1.dkt.com.vn, ns4.dotvndns.vn and nsbak.dotvndns.vn.
Host names with two IP numbers
- ns1.dotvndns.vn points to 2406:9c80::66 and 112.213.89.3
- ns2.dotvndns.vn points to 2406:9c80::9000:111 and 222.255.121.247
Host names with one IP number
- ns1.sapo.vn points to 112.213.89.3
- ns2.sapo.vn points to 222.255.121.247
Host names pointing to 112.213.89.3: ns1.dotvndns.vn and ns1.sapo.vn
Host names pointing to 222.255.121.247: ns2.dotvndns.vn and ns2.sapo.vn
Mail Servers
cau1thanglong.com is handled by a single mail server, mail.cau1thanglong.com.
mail.cau1thanglong.com points to a single IP: 210.245.8.134.