`cas.vn`

DNSSEC	⚠️ Not signed
A	45.252.248.18^{🇻🇳 AZDIGI-AS-VN45.252.248.0/22 AZDIGI-VN}
NS	`ns3.azdigi.com.cas.vn` ⭐ ⚠️ Not in parent delegation
		A	45.252.248.18^{🇻🇳 AZDIGI-AS-VN45.252.248.0/22 AZDIGI-VN}
NS	`ns1.dns.net.vnns1.dns.net.vn` ⚠️ Not in zone NS records
NS	`ns1.webgiare.info.vn` ⚠️ Not in zone NS records
		A	210.211.108.160^{🇻🇳 VTDC-AS-VN210.211.108.0/22 Proxy-registered route object}
			PTR	`ns1.dns.net.vn`
NS	`ns2.dns.net.vnns2.dns.net.vn` ⚠️ Not in zone NS records
NS	`ns2.webgiare.info.vn` ⚠️ Not in zone NS records
		A	103.45.229.100^{🇻🇳 QTSP103.45.229.0/24 CMI (Customer Route)}
			PTR	`ns2.dns.net.vn`
NS	`ns4.azdigi.com.cas.vn` ⚠️ Not in parent delegation
		A	45.252.248.18^{🇻🇳 AZDIGI-AS-VN45.252.248.0/22 AZDIGI-VN}
MX	`mail.cas.vn` ⭐
		A	125.212.209.55^{🇻🇳 VTDC-AS-VN125.212.208.0/22 VIETTEL-VN}
TXT	`v=spf1 a mx ?all`
SOA	`ns3.azdigi.com.cas.vn`webmaster@dns.net.vn serial=1747128884

`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=2030753415

Subdomains

mail.cas.vn

www.cas.vn

Same first word

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cas.edu.co

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cas.co.th

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Similar names

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sac.cool

acs.no

csa.mobi

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csa.edu.vn

sac.org.co

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sca.com.tr

acs.sk

sac.coop

csa.care

DNS History

11 records (8 active, 3 former)

○NSns1.dns.net.vn2017-03-27 → 2017-03-27 · 3 obs

● 2017-03-27 08:53:24
○ 2026-05-01 15:22:26
○ 2026-05-09 18:01:30

●NSns1.dns.net.vnns1.dns.net.vn2026-05-01 → 2026-05-09 · 3 obs

○ 2017-03-27 08:53:24
● 2026-05-01 15:22:26
● 2026-05-09 18:01:30

●NSns1.webgiare.info.vn2026-05-01 → 2026-05-09 · 3 obs

○ 2017-03-27 08:53:24
● 2026-05-01 15:22:26
● 2026-05-09 18:01:30

○NSns2.dns.net.vn2017-03-27 → 2017-03-27 · 3 obs

● 2017-03-27 08:53:24
○ 2026-05-01 15:22:26
○ 2026-05-09 18:01:30

●NSns2.dns.net.vnns2.dns.net.vn2026-05-01 → 2026-05-09 · 3 obs

○ 2017-03-27 08:53:24
● 2026-05-01 15:22:26
● 2026-05-09 18:01:30

●NSns2.webgiare.info.vn2026-05-01 → 2026-05-09 · 3 obs

○ 2017-03-27 08:53:24
● 2026-05-01 15:22:26
● 2026-05-09 18:01:30

●NSns3.azdigi.com.cas.vn2026-05-01 → 2026-05-09 · 3 obs

○ 2017-03-27 08:53:24
● 2026-05-01 15:22:26
● 2026-05-09 18:01:30

●NSns4.azdigi.com.cas.vn2026-05-01 → 2026-05-09 · 3 obs

○ 2017-03-27 08:53:24
● 2026-05-01 15:22:26
● 2026-05-09 18:01:30

●MXmail.cas.vn2017-03-27 → 2026-05-09 · 2 obs

● 2017-03-27 08:53:24
● 2026-05-09 18:01:30

○A125.212.209.522017-03-27 → 2017-03-27 · 3 obs

● 2017-03-27 08:53:24
○ 2026-05-01 15:22:26
○ 2026-05-09 18:01:30

●A45.252.248.182026-05-01 → 2026-05-09 · 3 obs

○ 2017-03-27 08:53:24
● 2026-05-01 15:22:26
● 2026-05-09 18:01:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
cas.vn	ns1.dns.net.vnns1.dns.net.vn, ns1.webgiare.info.vn, ns2.webgiare.info.vn, ns2.dns.net.vnns2.dns.net.vn	-

✅ Authoritative Response

Server:210.211.108.160

NS records: ns1.dns.net.vnns1.dns.net.vn, ns1.webgiare.info.vn, ns2.webgiare.info.vn, ns2.dns.net.vnns2.dns.net.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cas.vn (unsigned zone)

⏱️ Timing

Total: 2382ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.252.248.18`
NS	2	`ns3.azdigi.com.cas.vn, ns4.azdigi.com.cas.vn`
MX	1	`mail.cas.vn (pri: 10)`
TXT	1	`v=spf1 a mx ?all`
SOA	1	`ns3.azdigi.com.cas.vn webmaster.dns.net.`