`fsel.vn`

DNSSEC	⚠️ Not signed
A	192.223.15.217^{🇨🇦 FPTCLOUD-AS-VN192.223.15.0/24 FPTCLOUD-VN}
NS	`elsa.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a6f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elsa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elsa.ns.cloudflare.com`
		A	108.162.192.111^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
		A	172.64.32.111^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
		A	173.245.58.111^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
NS	`gannon.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c3b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gannon.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c33b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gannon.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:233b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gannon.ns.cloudflare.com`
		A	108.162.195.59^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gannon.ns.cloudflare.com`
		A	162.159.44.59^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gannon.ns.cloudflare.com`
		A	172.64.35.59^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gannon.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c19::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f27.1e100.net`
		A	172.253.122.27^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.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	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.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	`google-site-verification=Mf184FSsnKAhjeb4m_GVvZgxYEUs_1XkE5NApDmGQdQ`
SOA	`elsa.ns.cloudflare.com`dns@cloudflare.com serial=2410999742

`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.vn`postmaster@vnnic.vn serial=2031075525

Same first word

fsel.edu.vn

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DNS History

8 records (8 active, 0 former)

●NSelsa.ns.cloudflare.com2026-07-20 → 2026-08-05 · 2 obs

● 2026-07-20 15:26:06
● 2026-08-05 08:40:06

●NSgannon.ns.cloudflare.com2026-07-20 → 2026-08-05 · 2 obs

● 2026-07-20 15:26:06
● 2026-08-05 08:40:06

●MXalt1.aspmx.l.google.com2026-07-20 → 2026-08-05 · 2 obs

● 2026-07-20 15:26:06
● 2026-08-05 08:40:06

●MXalt2.aspmx.l.google.com2026-07-20 → 2026-08-05 · 2 obs

● 2026-07-20 15:26:06
● 2026-08-05 08:40:06

●MXalt3.aspmx.l.google.com2026-07-20 → 2026-08-05 · 2 obs

● 2026-07-20 15:26:06
● 2026-08-05 08:40:06

●MXalt4.aspmx.l.google.com2026-07-20 → 2026-08-05 · 2 obs

● 2026-07-20 15:26:06
● 2026-08-05 08:40:06

●MXaspmx.l.google.com2026-07-20 → 2026-08-05 · 2 obs

● 2026-07-20 15:26:06
● 2026-08-05 08:40:06

●A192.223.15.2172026-07-20 → 2026-08-05 · 2 obs

● 2026-07-20 15:26:06
● 2026-08-05 08:40:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
fsel.vn	gannon.ns.cloudflare.com, elsa.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.111

NS records: gannon.ns.cloudflare.com, elsa.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fsel.vn (unsigned zone)

⏱️ Timing

Total: 866ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`192.223.15.217`
NS	2	`elsa.ns.cloudflare.com, gannon.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`google-site-verification=Mf184FSsnKAhjeb`
SOA	1	`elsa.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

fsel.vn resolves to just one IP address, 192.223.15.217.

Two other host names, along with lms-demo.fsel.edu.vn, import-school-data.fsel.edu.vn and lms.fsel.edu.vn, also share IP numbers with fsel.vn.

Name Servers

The NS records for fsel.vn delegate to elsa.ns.cloudflare.com and gannon.ns.cloudflare.com.

fsel.vn shares its NS records with other domains, for example drumreed.co.uk, salakpark.com, agfivestar.vn and two others.

The name servers of fsel.vn overlap at least partially with those of other domains — among them xhfny.com, unicsign.com, sxtyz.com and two more.

These name servers commonly appear in combination with the name servers holly.ns.cloudflare.com.

DNS names with 6 IP addresses:

elsa.ns.cloudflare.com maps to 108.162.192.111, 172.64.32.111, 173.245.58.111 and 3 additional IP addresses.

gannon.ns.cloudflare.com maps to 108.162.195.59, 162.159.44.59, 172.64.35.59 and 3 additional IP addresses.

Mail Servers

fsel.vn has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

There is at least a partial MX overlap between fsel.vn and other domains, including hampsteadinstitute.org, intac.nl, planejarimoveis.com and two others.

alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com are mail servers that frequently appear together with these mail servers.

Host names that have two IP addresses:

The A records for aspmx.l.google.com return 172.253.122.27 and 2607:f8b0:4004:c19::1b.

The A records for alt1.aspmx.l.google.com return 108.177.123.27 and 2800:3f0:4003:c0f::1a.

The A records for alt2.aspmx.l.google.com return 172.253.116.27 and 2a00:1450:400b:c02::1b.

The A records for alt3.aspmx.l.google.com return 192.178.223.26 and 2a00:1450:4009:c0f::1a.

The A records for alt4.aspmx.l.google.com return 172.253.157.27 and 2a00:1450:400c:c23::1b.