explorascience.vn - robtex.com

explorascience.vn

DNSSEC⚠️ Not signed
A117.2.50.232🇻🇳 VIETEL-AS-AP117.2.48.0/22 Proxy-registered route object
NSns1.matbao.com ⭐ ⚠️ Not in parent delegation
A13.250.228.99🇸🇬 Amazon13.250.0.0/15 EC2 SIN prefix
PTRec2-13-250-228-99.ap-southeast-1.compute.amazonaws.com
A103.110.128.60🇻🇳 AXYS-VN103.110.128.0/23
NSns1.matbao.vn ⚠️ Not in zone NS records
A13.250.228.99🇸🇬 Amazon13.250.0.0/15 EC2 SIN prefix
PTRec2-13-250-228-99.ap-southeast-1.compute.amazonaws.com
A103.110.128.60🇻🇳 AXYS-VN103.110.128.0/23
NSns2.matbao.com ⚠️ Not in parent delegation
A35.198.203.127🇸🇬 Google35.198.192.0/20
PTR127.203.198.35.bc.googleusercontent.com
A103.138.89.11🇻🇳 VNPT-AS-VN103.138.88.0/23 VNPT-NET
NSns2.matbao.vn ⚠️ Not in zone NS records
A35.198.203.127🇸🇬 Google35.198.192.0/20
PTR127.203.198.35.bc.googleusercontent.com
A103.138.89.11🇻🇳 VNPT-AS-VN103.138.88.0/23 VNPT-NET
MXexplorascience-vn.mail.protection.outlook.com ⭐
A2a01:111:f403:cc09::🇸🇬 Microsoft2a01:111:f000::/36
PTRmail-sg2pr03cu00500.inbound.protection.outlook.com
A2a01:111:f403:cc1a::8🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tydpr03cu00100.inbound.protection.outlook.com
A2a01:111:f403:cc1f::4🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os8pr02cu00104.inbound.protection.outlook.com
A52.101.124.117🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tydpr03cu00105.inbound.protection.outlook.com
A52.101.137.0🇸🇬 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sg2pr03cu00500.inbound.protection.outlook.com
A52.101.157.80🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os8pr02cu00100.inbound.protection.outlook.com
TXTgoogle-site-verification=hWSKfWgquwX9RSkjq4PLxQkerNgeqNxwB7Yi4nFHbKQ
SOAns1.matbao.comadmin@matbao.com 2026-04-14 #1

vn

DNSSEC🔒 Signed (DS record present)
NSdns-master.vnnic.vn ⭐
NSa.dns-servers.vn
NSb.dns-servers.vn
NSc.dns-servers.vn
NSd.dns-servers.vn
NSe.dns-servers.vn
NSf.dns-servers.vn
NSg.dns-servers.vn
NSh.dns-servers.vn
SOAdns-master.vnnic.vnpostmaster@vnnic.vn serial=2030754735

Subdomains

stem.explorascience.vn
astro.explorascience.vn
www.explorascience.vn

Same first word

explorascience.com.cn
explorascience.vn

Similar names

serexcepcional.com

DNS History

8 records (6 active, 2 former)

20192020202120222023202420252026NSns1.matbao.comns1.matbao.vnns2.matbao.comns2.matbao.vnMXexplorascience-vn.mail.protection.outlook.commx1.mail.ovh.netA117.2.50.232213.32.64.41
●NSns1.matbao.com2018-05-22 → 2026-05-10 · 2 obs
● 2018-05-22 03:50:00
● 2026-05-10 15:33:36
●NSns1.matbao.vn2026-05-01 → 2026-05-10 · 3 obs
○ 2018-05-22 03:50:00
● 2026-05-01 08:56:58
● 2026-05-10 15:33:36
●NSns2.matbao.com2018-05-22 → 2026-05-10 · 2 obs
● 2018-05-22 03:50:00
● 2026-05-10 15:33:36
●NSns2.matbao.vn2026-05-01 → 2026-05-10 · 3 obs
○ 2018-05-22 03:50:00
● 2026-05-01 08:56:58
● 2026-05-10 15:33:36
●MXexplorascience-vn.mail.protection.outlook.com2026-05-01 → 2026-05-10 · 3 obs
○ 2018-05-22 03:50:00
● 2026-05-01 08:56:58
● 2026-05-10 15:33:36
○MXmx1.mail.ovh.net2018-05-22 → 2018-05-22 · 3 obs
● 2018-05-22 03:50:00
○ 2026-05-01 08:56:58
○ 2026-05-10 15:33:36
●A117.2.50.2322026-05-01 → 2026-05-10 · 3 obs
○ 2018-05-22 03:50:00
● 2026-05-01 08:56:58
● 2026-05-10 15:33:36
○A213.32.64.412018-05-22 → 2018-05-22 · 3 obs
● 2018-05-22 03:50:00
○ 2026-05-01 08:56:58
○ 2026-05-10 15:33:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vna.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...-
explorascience.vnns2.matbao.vn, ns1.matbao.vn2 records

✅ Authoritative Response

Server:103.138.89.11

NS records: ns2.matbao.vn, ns1.matbao.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for explorascience.vn (unsigned zone)

⏱️ Timing

Total: 1299ms | Queries: -

📄 Records

TypeCountSample Data
A1117.2.50.232
NS2ns1.matbao.com, ns2.matbao.com
MX1explorascience-vn.mail.protection.outloo
TXT1google-site-verification=hWSKfWgquwX9RSk
SOA1ns1.matbao.com admin.matbao.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.matbao.vn, ns2.matbao.vn)

Analysis

Hierarchy

explorascience.vn is the parent of stem.explorascience.vn, astro.explorascience.vn and www.explorascience.vn.

IP Addresses

explorascience.vn resolves to one IP number: 117.2.50.232.

Other host names, for instance www.explorascience.vn, stem.explorascience.vn, nbc.io.vn and astro.explorascience.vn share IP numbers with explorascience.vn.

Name Servers

explorascience.vn is delegated to four name servers: ns1.matbao.com, ns2.matbao.com, ns1.matbao.vn and ns2.matbao.vn.

explorascience.vn at least partially shares name servers with other domains, for instance tgold.vn, 248.4.78.112.in-addr.arpa, aloin.com.vn, ssfood-vn.com and khudothioceancity.com.

These name servers are commonly used alongside ns-bak.matbao.com and ns1.digipowerdns.com.

Host names with two IP numbers:

ns1.matbao.com points to: 13.250.228.99 and 103.110.128.60

ns2.matbao.com points to: 35.198.203.127 and 103.138.89.11

ns1.matbao.vn points to: 13.250.228.99 and 103.110.128.60

ns2.matbao.vn points to: 35.198.203.127 and 103.138.89.11

Host names that point to 13.250.228.99: ns1.matbao.com and ns1.matbao.vn

Host names that point to 103.110.128.60: ns1.matbao.com and ns1.matbao.vn

Host names that point to 35.198.203.127: ns2.matbao.com and ns2.matbao.vn

Host names that point to 103.138.89.11: ns2.matbao.com and ns2.matbao.vn

Mail Servers

explorascience.vn is handled by a single mail server, explorascience-vn.mail.protection.outlook.com.

The host name explorascience-vn.mail.protection.outlook.com resolves to six IP numbers: 2a01:111:f403:cc09::, 2a01:111:f403:cc1a::8, 2a01:111:f403:cc1f::4, 52.101.124.117, 52.101.137.0 and 52.101.157.80.