`webtailieu.vn`

DNSSEC	⚠️ Not signed
A	45.119.84.172^{🇻🇳 LVSS-AS-VN}
NS	`x.hkda.vn` ⭐ ⚠️ Not in parent delegation
		A	167.114.147.95^{🇨🇦 OVH}
NS	`b.url.com.vn` ⚠️ Not in zone NS records
		A	45.119.84.172^{🇻🇳 LVSS-AS-VN}
NS	`s.url.com.vn` ⚠️ Not in zone NS records
		A	45.119.84.172^{🇻🇳 LVSS-AS-VN}
NS	`y.hkda.vn` ⚠️ Not in parent delegation
		A	51.79.210.111^{🇸🇬 OVH}
NS	`z.hkda.vn` ⚠️ Not in parent delegation
		A	45.119.84.172^{🇻🇳 LVSS-AS-VN}
MX	`webtailieu.vn` ⭐
		A	45.119.84.172^{🇻🇳 LVSS-AS-VN}
TXT	`v=spf1 +a +mx +ip4:45.119.84.172 ~all`
SOA	`x.hkda.vn`kythuat@hkda.vn 2025-10-12 #0

`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=2030456136

MX for

webtailieu.vn

Same first word

webtailieu.vn

webtailieu.net

webtailieu.org

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	g.dns-servers.vn, h.dns-servers.vn, c.dns-servers.vn, f.dns-servers.vn...	16 records
webtailieu.vn	b.url.com.vn, s.url.com.vn	-

✅ Authoritative Response

Server: 45.119.84.172

NS records: b.url.com.vn, s.url.com.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for webtailieu.vn (unsigned zone)

⏱️ Timing

Total: 1805ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.119.84.172`
NS	3	`z.hkda.vn, y.hkda.vn...`
MX	1	`webtailieu.vn (pri: 0)`
TXT	1	`v=spf1 +a +mx +ip4:45.119.84.172 ~all`
SOA	1	`x.hkda.vn kythuat.hkda.vn`

📌 Glue Records Collected

Total: 16

In-bailiwick: 16 (h.dns-servers.vn, g.dns-servers.vn, f.dns-servers.vn...)

AI analysis

For webtailieu.vn, the mail server is webtailieu.vn.

webtailieu.vn resolves to one IP number: 45.119.84.172.

other host names including dxv.vn, vpt.vn, mili.vn, culaoxanh.com.vn and clg.vn share IP numbers with webtailieu.vn.

webtailieu.vn is delegated to five name servers: x.hkda.vn, y.hkda.vn, z.hkda.vn, b.url.com.vn and s.url.com.vn.

webtailieu.vn at least partially shares name servers with other domains, for instance dnt.vn, ken.vn, animate.vn, vovinam.vn and psc.vn.

These name servers are commonly used alongside 01292999666.url.com.vn and domainforsell.url.com.vn.

Host names with a single IP

x.hkda.vn points to: 167.114.147.95.

y.hkda.vn points to: 51.79.210.111.

z.hkda.vn points to: 45.119.84.172.

b.url.com.vn points to: 45.119.84.172.

s.url.com.vn points to: 45.119.84.172.

The IP 45.119.84.172 is the target of z.hkda.vn, b.url.com.vn and s.url.com.vn.

webtailieu.vn is served by a single mail server, webtailieu.vn.

webtailieu.vn resolves to IP 45.119.84.172.

webtailieu.vn - robtex.com

webtailieu.vn

vn