flashcard.vn - robtex.com
flashcard.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.57.220.152🇻🇳 VNPT-AS-VN103.57.220.0/22 INET-VN | ||||||
| NS | nsbak.pavietnam.net ⭐ | ||||||
| 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.pavietnam.vn | ||||||
| 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 | ns2.pavietnam.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 | ||||||
| SOA | nsbak.pavietnam.nethostmaster@flashcard.vn 2017-11-21 #7 | ||||||
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=2030763974 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns1.pavietnam.vn2017-10-27 → 2026-05-12 · 2 obs
● 2026-05-12 12:23:56
●NSns2.pavietnam.vn2017-10-27 → 2026-05-12 · 2 obs
● 2026-05-12 12:23:56
●NSnsbak.pavietnam.net2017-10-27 → 2026-05-12 · 2 obs
● 2026-05-12 12:23:56
●A103.57.220.1522017-10-27 → 2026-05-12 · 2 obs
● 2026-05-12 12:23:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | c.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn... | - |
| flashcard.vn | ns1.pavietnam.vn, nsbak.pavietnam.net, ns2.pavietnam.vn | 4 records |
✅ Authoritative Response
Server:112.213.89.3
NS records: ns1.pavietnam.vn, nsbak.pavietnam.net, ns2.pavietnam.vn
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at flashcard.vn: Error: DNS query timeout: 203.119.38.105 for DS flashcard.vn
⏱️ Timing
Total: 4214ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.57.220.152 |
| NS | 3 | nsbak.pavietnam.net, ns2.pavietnam.vn... |
| SOA | 1 | nsbak.pavietnam.net hostmaster.flashcard |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.pavietnam.vn, ns2.pavietnam.vn, ns1.pavietnam.vn...)
Analysis
IP Addresses
flashcard.vn points to a single IP: 103.57.220.152.
Name Servers
flashcard.vn is delegated to three name servers: nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn.
flashcard.vn partially shares name servers with other domains; examples include hoff.vn, hoanggiahuy.com, misontrans.com, tc-tech.com.vn and registrylock.vn.
These name servers commonly accompany ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com and ns3.dotvndns.vn.
Host names with two IP numbers:
nsbak.pavietnam.net points to 2406:9c80::9000:302 and 112.213.89.22.
ns1.pavietnam.vn points to 2406:9c80::66 and 112.213.89.3.
ns2.pavietnam.vn points to 2406:9c80::9000:111 and 222.255.121.247.