ags-study.com - dns.ninja

`ags-study.com`

DNSSEC	⚠️ Not signed
A	103.109.39.40^{🇻🇳 ADSOTA-AS-VN103.109.39.0/24 Customer of Viettel ADSOTA-VN}
		PTR	`mail.hostsvc.com`
NS	`ns1.huho.vn` ⭐
NS	`ns1.dotvndns.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.dotvndns.vn`
NS	`nsbak.dotvndns.com`
		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`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c06::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bg-in-f26.1e100.net`
		A	172.253.62.27^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f27.1e100.net`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c06::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bg-in-f27.1e100.net`
		A	2607:f8b0:4004:c09::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bh-in-f26.1e100.net`
		A	2607:f8b0:4004:c09::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bh-in-f27.1e100.net`
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	172.253.115.27^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-in-f27.1e100.net`
		A	172.253.122.26^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f26.1e100.net`
		A	172.253.122.27^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f27.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`v=spf1 a mx ~all`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`ns1.huho.vn`hostmaster@ags-study.com 2025-07-09 #28

`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.net`nstld@verisign-grs.com serial=1785899769

Same first word

ags-study.com

DNS History

13 records (11 active, 2 former)

●NSns1.dotvndns.vn2026-03-07 → 2026-08-05 · 3 obs

○ 2018-07-07 02:19:18
● 2026-03-07 11:57:14
● 2026-08-05 03:27:26

●NSns1.huho.vn2018-07-07 → 2026-08-05 · 2 obs

● 2018-07-07 02:19:18
● 2026-08-05 03:27:26

●NSns2.dotvndns.vn2026-03-07 → 2026-08-05 · 3 obs

○ 2018-07-07 02:19:18
● 2026-03-07 11:57:14
● 2026-08-05 03:27:26

○NSns2.huho.vn2018-07-07 → 2018-07-07 · 3 obs

● 2018-07-07 02:19:18
○ 2026-03-07 11:57:14
○ 2026-08-05 03:27:26

●NSnsbak.dotvndns.com2018-07-07 → 2026-08-05 · 2 obs

● 2018-07-07 02:19:18
● 2026-08-05 03:27:26

●MXalt1.aspmx.l.google.com2018-07-07 → 2026-08-05 · 2 obs

● 2018-07-07 02:19:18
● 2026-08-05 03:27:26

●MXalt2.aspmx.l.google.com2018-07-07 → 2026-08-05 · 2 obs

● 2018-07-07 02:19:18
● 2026-08-05 03:27:26

●MXalt3.aspmx.l.google.com2018-07-07 → 2026-08-05 · 2 obs

● 2018-07-07 02:19:18
● 2026-08-05 03:27:26

●MXalt4.aspmx.l.google.com2018-07-07 → 2026-08-05 · 2 obs

● 2018-07-07 02:19:18
● 2026-08-05 03:27:26

●MXaspmx.l.google.com2018-07-07 → 2026-08-05 · 2 obs

● 2018-07-07 02:19:18
● 2026-08-05 03:27:26

●MXsmtp.google.com2026-03-07 → 2026-08-05 · 3 obs

○ 2018-07-07 02:19:18
● 2026-03-07 11:57:14
● 2026-08-05 03:27:26

●A103.109.39.402026-03-07 → 2026-08-05 · 3 obs

○ 2018-07-07 02:19:18
● 2026-03-07 11:57:14
● 2026-08-05 03:27:26

○A103.53.168.2342018-07-07 → 2018-07-07 · 3 obs

● 2018-07-07 02:19:18
○ 2026-03-07 11:57:14
○ 2026-08-05 03:27:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, c.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net...	-
ags-study.com	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn	2 records

✅ Authoritative Response

Server:112.213.89.3

NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ags-study.com (unsigned zone)

⏱️ Timing

Total: 1553ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.122.244.110`
NS	3	`nsbak.dotvndns.com, ns1.dotvndns.vn...`
MX	6	`aspmx.l.google.com (pri: 1), alt2.aspmx.l.google.com (pri: 5)...`
TXT	2	`v=spf1 include:_spf.google.com ~all, v=spf1 a mx ~all`
SOA	1	`ns1.huho.vn hostmaster.ags-study.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)

Analysis

IP Addresses

ags-study.com has exactly one IP address — 103.109.39.40.

lptex.vn, phudonggroup.com, www.xiga.io.vn plus two other host names have IP numbers in common with ags-study.com.

Name Servers

Four name servers handle the delegation for ags-study.com: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn and ns1.huho.vn.

At least some of ags-study.com's name servers are shared with other domains, for example giayongbim.com, muasim5g.com, vietinbankamc.vn and two more.

These name servers tend to appear together with the name servers ns1.pavietnam.vn, ns3.dotvndns.vn and ns2.pavietnam.vn, plus two others.

nsbak.dotvndns.com and ns1.dotvndns.vn both carry two IP addresses. The A records for nsbak.dotvndns.com are 112.213.89.22 and 2406:9c80::9000:302; the A records for ns1.dotvndns.vn are 112.213.89.3 and 2406:9c80::66.

Mail Servers

ags-study.com uses 6 mail servers for delivery: smtp.google.com, aspmx.l.google.com, alt1.aspmx.l.google.com and 3 other.

At least some of the mail servers used by ags-study.com are shared with other domains: optik.tech, westrim.com, anstrutherlifeboat.org and two others among them.

These mail servers are often deployed together with alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and 4 other mail servers.

Hosts with 9 IP addresses each:

smtp.google.com resolves to 172.253.115.27, 172.253.122.26 and 172.253.122.27 among others, with 6 other IP addresses in total.

Host names pointing to two IP addresses:

aspmx.l.google.com resolves to two addresses: 172.253.62.27 and 2607:f8b0:4004:c06::1a.

alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.26 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.26 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.27 and 2a00:1450:400c:c23::1b.