`fschool.vn`

DNSSEC	⚠️ Not signed
A	183.81.34.197^{🇻🇳 FPT-AS-AP183.81.32.0/20 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
NS	`ns1.pavietnam.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.pavietnam.vn`
		A	2406:9c80::9000:111^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns2.dotvndns.vn`
		A	222.255.121.247^{🇻🇳 VDC222.255.121.0/24 VNPT}
			PTR	`static.vdc.vn`
			PTR	`static.vnpt.vn`
NS	`nsbak.pavietnam.net`
		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:c21::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f26.1e100.net`
		A	142.251.16.26^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f26.1e100.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	2607:f8b0:4023:3003::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yulnkjt-in-f27.1e100.net`
		A	172.253.145.27^{🇺🇸 Google172.253.145.0/24}
			PTR	`yulnkjt-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4023:1015::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yudfwta-in-f26.1e100.net`
		A	172.253.135.26^{🇺🇸 Google172.253.135.0/24}
			PTR	`yudfwta-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c00::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`ws-in-f26.1e100.net`
			PTR	`ws-in-x1a.1e100.net`
		A	173.194.76.27^{🇺🇸 Google173.194.76.0/24}
			PTR	`ws-in-f27.1e100.net`
TXT	`zalo-platform-site-verification=I-Vd6RdtKIr1mFmabxGcVMN4jbA9ksCDCpS`
TXT	`google-site-verification=num7O9JfQlJt3sfYDnSHoY6jxKU4B5w5scz1v1hhthw`
SOA	`ns1.pavietnam.vn`hostmaster@fschool.vn 2023-04-26 #26

`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=2030759387

Subdomains

www.fschool.vn

cms.fschool.vn

va.fschool.vn

student.fschool.vn

live-chat.fschool.vn

cms-landing.fschool.vn

Same first word

fschool.pp.ua

fschool.net

fschool.com

fschool.us

fschool.ru

fschool.vn

fschool.org

Similar names

schoolf.com

schoolf.ru

DNS History

9 records (9 active, 0 former)

●NSns1.pavietnam.vn2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 06:49:00
● 2026-05-11 13:07:58

●NSns2.pavietnam.vn2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 06:49:00
● 2026-05-11 13:07:58

●NSnsbak.pavietnam.net2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 06:49:00
● 2026-05-11 13:07:58

●MXalt1.aspmx.l.google.com2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 06:49:00
● 2026-05-11 13:07:58

●MXalt2.aspmx.l.google.com2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 06:49:00
● 2026-05-11 13:07:58

●MXalt3.aspmx.l.google.com2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 06:49:00
● 2026-05-11 13:07:58

●MXalt4.aspmx.l.google.com2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 06:49:00
● 2026-05-11 13:07:58

●MXaspmx.l.google.com2026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 06:49:00
● 2026-05-11 13:07:58

●A183.81.34.1972026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 06:49:00
● 2026-05-11 13:07:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
fschool.vn	ns2.pavietnam.vn, nsbak.pavietnam.net, ns1.pavietnam.vn	4 records

✅ Authoritative Response

Server:222.255.121.247

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fschool.vn (unsigned zone)

⏱️ Timing

Total: 1964ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.81.34.197`
NS	3	`nsbak.pavietnam.net, ns1.pavietnam.vn...`
MX	5	`alt2.aspmx.l.google.com (pri: 5), aspmx.l.google.com (pri: 1)...`
TXT	2	`google-site-verification=num7O9JfQlJt3sf, zalo-platform-site-verification=I-Vd6Rdt`
SOA	1	`ns1.pavietnam.vn hostmaster.fschool.vn`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns2.pavietnam.vn, ns1.pavietnam.vn, ns2.pavietnam.vn...)

Analysis

Hierarchy

fschool.vn is a parent of www.fschool.vn, cms.fschool.vn, va.fschool.vn, student.fschool.vn and live-chat.fschool.vn, plus a few other host names.