vbu.info - robtex.com

vbu.info

DNSSEC⚠️ Not signed
A103.238.214.17🇻🇳 VTN-1103.238.214.0/24 Vietnam Post and Telecom Corporation (VNPT)
PTRvbu.edu.vn
NSns1.pavietnam.vn ⭐
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.pavietnam.vn
A2406:9c80::9000:111🇻🇳 SUPERDATA2406:9c80::/48 -VN
PTRns2.dotvndns.vn
A222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT
NSnsbak.pavietnam.net
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
SOAns1.pavietnam.vnhostmaster@vbu.info 2025-06-12 #3

info

DNSSEC🔒 Signed (DS record present)
NSa0.info.afilias-nst.info ⭐
NSa2.info.afilias-nst.info
NSb0.info.afilias-nst.org ⚠️ Not in parent delegation
NSb2.info.afilias-nst.org ⚠️ Not in parent delegation
NSc0.info.afilias-nst.info
NSd0.info.afilias-nst.org ⚠️ Not in parent delegation
SOAa0.info.afilias-nst.infohostmaster@donuts.email serial=1775996163

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DNS History

14 records (4 active, 10 former)

20162017201820192020202120222023202420252026NSns1.pavietnam.vnns2.pavietnam.vnnsbak.pavietnam.netns1.reel2.netns2.reel2.netns3.reel2.netns4.reel2.netns5.reel2.netMXmail.dechema.deA103.238.214.17193.110.179.171193.110.179.174193.110.179.175193.110.179.190
●NSns1.pavietnam.vn2026-03-26 → 2026-04-12 · 3 obs
○ 2020-01-16 10:41:16
● 2026-03-26 16:16:58
● 2026-04-12 12:50:46
○NSns1.reel2.net2015-06-16 → 2020-01-16 · 4 obs
● 2015-06-16 04:07:00
● 2020-01-16 10:41:16
○ 2026-03-26 16:16:58
○ 2026-04-12 12:50:46
●NSns2.pavietnam.vn2026-03-26 → 2026-04-12 · 3 obs
○ 2020-01-16 10:41:16
● 2026-03-26 16:16:58
● 2026-04-12 12:50:46
○NSns2.reel2.net2015-06-16 → 2020-01-16 · 4 obs
● 2015-06-16 04:07:00
● 2020-01-16 10:41:16
○ 2026-03-26 16:16:58
○ 2026-04-12 12:50:46
○NSns3.reel2.net2015-06-16 → 2020-01-16 · 4 obs
● 2015-06-16 04:07:00
● 2020-01-16 10:41:16
○ 2026-03-26 16:16:58
○ 2026-04-12 12:50:46
○NSns4.reel2.net2015-06-16 → 2020-01-16 · 4 obs
● 2015-06-16 04:07:00
● 2020-01-16 10:41:16
○ 2026-03-26 16:16:58
○ 2026-04-12 12:50:46
○NSns5.reel2.net2015-06-16 → 2020-01-16 · 4 obs
● 2015-06-16 04:07:00
● 2020-01-16 10:41:16
○ 2026-03-26 16:16:58
○ 2026-04-12 12:50:46
●NSnsbak.pavietnam.net2026-03-26 → 2026-04-12 · 3 obs
○ 2020-01-16 10:41:16
● 2026-03-26 16:16:58
● 2026-04-12 12:50:46
○MXmail.dechema.de2015-06-16 → 2020-01-16 · 4 obs
● 2015-06-16 04:07:00
● 2020-01-16 10:41:16
○ 2026-03-26 16:16:58
○ 2026-04-12 12:50:46
●A103.238.214.172026-03-26 → 2026-04-12 · 3 obs
○ 2020-01-16 10:41:16
● 2026-03-26 16:16:58
● 2026-04-12 12:50:46
○A193.110.179.1712015-06-16 → 2016-09-16 · 4 obs
● 2015-06-16 04:07:00
● 2016-09-16 02:23:04
○ 2020-01-16 10:41:16
○ 2026-04-12 12:50:46
○A193.110.179.1742015-06-16 → 2016-09-16 · 4 obs
● 2015-06-16 04:07:00
● 2016-09-16 02:23:04
○ 2020-01-16 10:41:16
○ 2026-04-12 12:50:46
○A193.110.179.1752015-06-16 → 2016-09-16 · 4 obs
● 2015-06-16 04:07:00
● 2016-09-16 02:23:04
○ 2020-01-16 10:41:16
○ 2026-04-12 12:50:46
○A193.110.179.1902020-01-16 → 2020-01-16 · 4 obs
○ 2016-09-16 02:23:04
● 2020-01-16 10:41:16
○ 2026-03-26 16:16:58
○ 2026-04-12 12:50:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
infoa2.info.afilias-nst.info, a0.info.afilias-nst.info, c0.info.afilias-nst.info-
vbu.infons1.pavietnam.vn, ns2.pavietnam.vn, nsbak.pavietnam.net-

✅ Authoritative Response

Server:112.213.89.3

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for vbu.info (unsigned zone)

⏱️ Timing

Total: 1580ms | Queries: -

📄 Records

TypeCountSample Data
A1103.238.214.17
NS3nsbak.pavietnam.net, ns1.pavietnam.vn...
SOA1ns1.pavietnam.vn hostmaster.vbu.info

Analysis

IP Addresses

vbu.info points to a single IP address: 103.238.214.17.

Other host names, for example phatam.com, mail.phatam.com and www.phatam.com share IPs with vbu.info.

Name Servers

vbu.info is delegated to three name servers: nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn.

vbu.info at least partially shares name servers with other domains, for example clickee.vn, pinigroup.vn, hasuvn.com, btbvn.vn and dichvunhasach.com.

these name servers commonly pair with ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com and nsbak.pavietnam.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