tamhoc.com - robtex.com

tamhoc.com

DNSSEC⚠️ Not signed
A103.56.156.238🇻🇳 VTN-1103.56.156.0/22 VCCORP-VN
NSnsbak.dotvndns.com ⭐ ⚠️ Not in parent delegation 🔒
A2406:9c80::9000:302🇻🇳 SUPERDATA2406:9c80::/48 -VN
PTRnsbak.dotvndns.com
A112.213.89.22🇻🇳 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
PTRns8922.dotvndns.vn
NSns1.dotvndns.vn ⚠️ Not in parent delegation
A2406:9c80::66🇻🇳 SUPERDATA2406:9c80::/48 -VN
PTRns1.dotvndns.vn
A112.213.89.3🇻🇳 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
PTRns1.dotvndns.vn
NSns1.pavietnam.vn ⚠️ Not in zone NS records 🔒
A2406:9c80::66🇻🇳 SUPERDATA2406:9c80::/48 -VN
PTRns1.dotvndns.vn
A112.213.89.3🇻🇳 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
PTRns1.dotvndns.vn
NSns2.dotvndns.vn ⚠️ Not in parent delegation
A2406:9c80::9000:111🇻🇳 SUPERDATA2406:9c80::/48 -VN
PTRns2.dotvndns.vn
A222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT
PTRstatic.vdc.vn
PTRstatic.vnpt.vn
NSns2.pavietnam.vn ⚠️ Not in zone NS records
A2406:9c80::9000:111🇻🇳 SUPERDATA2406:9c80::/48 -VN
PTRns2.dotvndns.vn
A222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT
PTRstatic.vdc.vn
PTRstatic.vnpt.vn
NSnsbak.pavietnam.net ⚠️ Not in zone NS records 🔒
A2406:9c80::9000:302🇻🇳 SUPERDATA2406:9c80::/48 -VN
PTRnsbak.dotvndns.com
A112.213.89.22🇻🇳 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
PTRns8922.dotvndns.vn
SOAnsbak.dotvndns.comhostmaster@tamhoc.com 2023-09-17 #19

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291435

Same first word

tamhoc.com

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DNS History

8 records (7 active, 1 former)

20162017201820192020202120222023202420252026NSns1.dotvndns.vnns1.pavietnam.vnns2.dotvndns.vnns2.pavietnam.vnnsbak.dotvndns.comnsbak.pavietnam.netA103.56.156.238112.213.89.25
●NSns1.dotvndns.vn2015-08-12 → 2026-02-26 · 2 obs
● 2015-08-12 02:13:10
● 2026-02-26 21:54:20
●NSns1.pavietnam.vn2026-02-26 → 2026-02-26 · 2 obs
○ 2015-08-12 02:13:10
● 2026-02-26 21:54:20
●NSns2.dotvndns.vn2015-08-12 → 2026-02-26 · 2 obs
● 2015-08-12 02:13:10
● 2026-02-26 21:54:20
●NSns2.pavietnam.vn2026-02-26 → 2026-02-26 · 2 obs
○ 2015-08-12 02:13:10
● 2026-02-26 21:54:20
●NSnsbak.dotvndns.com2026-02-26 → 2026-02-26 · 2 obs
○ 2015-08-12 02:13:10
● 2026-02-26 21:54:20
●NSnsbak.pavietnam.net2026-02-26 → 2026-02-26 · 2 obs
○ 2015-08-12 02:13:10
● 2026-02-26 21:54:20
●A103.56.156.2382026-02-26 → 2026-02-26 · 2 obs
○ 2017-01-31 11:46:00
● 2026-02-26 21:54:20
○A112.213.89.252015-08-12 → 2017-01-31 · 3 obs
● 2015-08-12 02:13:10
● 2017-01-31 11:46:00
○ 2026-02-26 21:54:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
tamhoc.comnsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn-

✅ Authoritative Response

Server: 112.213.89.3

NS records: nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tamhoc.com (unsigned zone)

⏱️ Timing

Total: 3464ms | Queries: -

📄 Records

TypeCountSample Data
A1103.56.156.238
NS3ns1.dotvndns.vn, nsbak.dotvndns.com...
SOA1nsbak.dotvndns.com hostmaster.tamhoc.com

AI analysis

tamhoc.com points to a single IP: 103.56.156.238.

tamhoc.com is delegated to six name servers: nsbak.dotvndns.com, nsbak.pavietnam.net, ns1.dotvndns.vn, ns2.dotvndns.vn, ns1.pavietnam.vn and ns2.pavietnam.vn.

tamhoc.com at least partially shares its name servers with other domains, for instance pgdlacthuy.edu.vn, vnphone.vn, tienmahoa.net.vn, vnpttphcm.com.vn and bantinbatdongsan.vn.

These name servers are commonly used alongside ns3.dotvndns.vn and nsbak.dotvndns.vn.

Host names with two IP numbers:

nsbak.dotvndns.com points to 2406:9c80::9000:302 and 112.213.89.22

nsbak.pavietnam.net points to 2406:9c80::9000:302 and 112.213.89.22

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

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

Host names that point to 2406:9c80::9000:302: nsbak.dotvndns.com, nsbak.pavietnam.net

Host names that point to 112.213.89.22: nsbak.dotvndns.com, nsbak.pavietnam.net

Host names that point to 2406:9c80::66: ns1.dotvndns.vn, ns1.pavietnam.vn

Host names that point to 112.213.89.3: ns1.dotvndns.vn, ns1.pavietnam.vn

Host names that point to 2406:9c80::9000:111: ns2.dotvndns.vn, ns2.pavietnam.vn

Host names that point to 222.255.121.247: ns2.dotvndns.vn, ns2.pavietnam.vn