`cotay.vn`

DNSSEC	⚠️ Not signed
A	103.154.102.35^{🇻🇳 HARAVAN-AS-VN103.154.102.0/23 HARAVAN-VN}
NS	`ns1.zonedns.vn` ⭐
		A	2401:c080:1400:1cd4:5400:5ff:fe80:ec33^{🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix}
		A	64.176.84.220^{🇸🇬 AS-VULTR64.176.80.0/20 Vultr Assigned Prefix}
			PTR	`ns1.zonedns.vn`
NS	`ns2.zonedns.vn`
		A	2401:c080:1400:1cd4:5400:5ff:fe80:ec33^{🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix}
		A	103.176.178.51^{🇻🇳 NHAN-HOA-AS-VN103.176.178.0/24 NINETECH-VN}
NS	`ns3.zonedns.vn`
		A	2001:df1:3200::15^{🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN}
		A	103.28.36.30^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}
NS	`ns4.zonedns.vn`
		A	2001:df1:3200::15^{🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN}
		A	103.28.39.159^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c17::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f27.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 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	172.253.145.26^{🇺🇸 Google172.253.145.0/24}
			PTR	`yulnkjt-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	2607:f8b0:4001:c70::1a^{🇺🇸 Google2607:f8b0:4001::/48}
			PTR	`yucbful-in-f26.1e100.net`
		A	192.178.209.27^{🇺🇸 Google192.178.209.0/24}
			PTR	`yucbful-in-f27.1e100.net`
TXT	`google-site-verification=IrOGFXss3uTB3iOl77PjfjXkFh0KQo7MocNe11 Td4IU`
TXT	`yandex-verification: 69e53d4ae24e22e1`
TXT	`google-site-verification=49ajBKHHEUj4G6mEaytF368A_p9vNBZXE_wRdR8dYZc`
TXT	`google-site-verification=IrOGFXss3uTB3iOl77PjfjXkFh0KQo7MocNe11Td4IU`
TXT	`v=spf1 redirect=_spf.yandex.net`
TXT	`5e85c4331530b3e707156b3491314d36`
SOA	`ns1.zonedns.vn`root@cotay.vn 2025-06-13 #5

`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=2030743651

Subdomains

www.cotay.vn

Same first word

cotay.com

cotay.vn

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DNS History

12 records (10 active, 2 former)

●NSns1.zonedns.vn2020-03-28 → 2026-05-07 · 2 obs

● 2020-03-28 12:31:10
● 2026-05-07 13:34:36

●NSns2.zonedns.vn2020-03-28 → 2026-05-07 · 2 obs

● 2020-03-28 12:31:10
● 2026-05-07 13:34:36

●NSns3.zonedns.vn2020-03-28 → 2026-05-07 · 2 obs

● 2020-03-28 12:31:10
● 2026-05-07 13:34:36

●NSns4.zonedns.vn2026-05-01 → 2026-05-07 · 3 obs

○ 2020-03-28 12:31:10
● 2026-05-01 15:54:30
● 2026-05-07 13:34:36

●MXalt1.aspmx.l.google.com2026-05-01 → 2026-05-07 · 3 obs

○ 2020-03-28 12:31:10
● 2026-05-01 15:54:30
● 2026-05-07 13:34:36

●MXalt2.aspmx.l.google.com2026-05-01 → 2026-05-07 · 3 obs

○ 2020-03-28 12:31:10
● 2026-05-01 15:54:30
● 2026-05-07 13:34:36

●MXalt3.aspmx.l.google.com2026-05-01 → 2026-05-07 · 3 obs

○ 2020-03-28 12:31:10
● 2026-05-01 15:54:30
● 2026-05-07 13:34:36

●MXalt4.aspmx.l.google.com2026-05-01 → 2026-05-07 · 3 obs

○ 2020-03-28 12:31:10
● 2026-05-01 15:54:30
● 2026-05-07 13:34:36

●MXaspmx.l.google.com2026-05-01 → 2026-05-07 · 3 obs

○ 2020-03-28 12:31:10
● 2026-05-01 15:54:30
● 2026-05-07 13:34:36

○MXmx.yandex.net2020-03-28 → 2020-03-28 · 3 obs

● 2020-03-28 12:31:10
○ 2026-05-01 15:54:30
○ 2026-05-07 13:34:36

●A103.154.102.352026-05-01 → 2026-05-07 · 3 obs

○ 2020-03-28 12:31:10
● 2026-05-01 15:54:30
● 2026-05-07 13:34:36

○A104.155.234.352020-03-28 → 2020-03-28 · 3 obs

● 2020-03-28 12:31:10
○ 2026-05-01 15:54:30
○ 2026-05-07 13:34:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
cotay.vn	ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn, ns4.zonedns.vn	-

✅ Authoritative Response

Server:103.28.36.30

NS records: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn, ns4.zonedns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cotay.vn (unsigned zone)

⏱️ Timing

Total: 2021ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.154.102.35`
NS	4	`ns2.zonedns.vn, ns3.zonedns.vn...`
MX	5	`ALT3.ASPMX.L.GOOGLE.COM (pri: 10), ALT1.ASPMX.L.GOOGLE.COM (pri: 5)...`
TXT	6	`v=spf1 redirect=_spf.yandex.net, google-site-verification=49ajBKHHEUj4G6m...`
SOA	1	`ns1.zonedns.vn root.cotay.vn`