`mail.sieuthihanquoc.com`

CNAME	`ghs.googlehosted.com`
DNSSEC	⚠️ Not signed
A	2607:f8b0:4006:80f::2013^{🇺🇸 Google2607:f8b0:4006::/48}
		PTR	`lclgaa-az-in-x13.1e100.net`
		PTR	`lga25s41-in-x13.1e100.net`
		PTR	`lga25s72-in-x13.1e100.net`
A	142.250.217.147^{🇺🇸 Google142.250.217.0/24}

`sieuthihanquoc.com`

	DNSSEC	⚠️ Not signed
	A	216.239.32.21^{🇺🇸 Google216.239.32.0/24}
	A	216.239.34.21^{🇺🇸 Google216.239.34.0/24}
	NS	`nsbak.dotvndns.com` ⭐
	NS	`ns1.dotvndns.vn`
	NS	`ns2.dotvndns.vn`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
	TXT	`bsvzuzddobplagapbvitvsgz7kxegi7cirix5bvzs24dbzf76saa.mx-verification.google.com.`
	TXT	`google-site-verification=09sSdeDs-nbpLf7Y-POrYZ1a5c-kUDOD5wZ27tqzYQ4`
	TXT	`v=spf1 include:_spf.google.com ~all`
	SOA	`nsbak.dotvndns.com`hostmaster@sieuthihanquoc.com 2025-03-10 #16

Previously MX for

sieuthihanquoc.com

Same first word

mail.gov.ru

mail.pr

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amil.healthcare

DNS History

5 records (1 active, 4 former)

○A123.30.236.1802015-05-26 → 2015-05-26 · 2 obs

● 2015-05-26 10:48:10
○ 2026-03-26 11:59:58

○A176.74.176.1842016-01-03 → 2016-01-03 · 4 obs

○ 2015-05-26 10:48:10
● 2016-01-03 00:54:46
○ 2016-03-28 04:57:46
○ 2026-03-26 11:59:58

○A192.64.147.1742016-03-28 → 2016-03-28 · 3 obs

○ 2016-01-03 00:54:46
● 2016-03-28 04:57:46
○ 2026-03-26 11:59:58

●CNAMEghs.googlehosted.com2026-03-26 → 2026-03-26 · 2 obs

○ 2016-01-03 00:54:46
● 2026-03-26 11:59:58

○CNAMEsieuthihanquoc.com2015-05-26 → 2015-05-26 · 3 obs

● 2015-05-26 10:48:10
○ 2016-01-03 00:54:46
○ 2026-03-26 11:59:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sieuthihanquoc.com	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn	2 records

✅ Authoritative Response

Server:222.255.121.247

NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sieuthihanquoc.com (unsigned zone)

⏱️ Timing

Total: 1714ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`ghs.googlehosted.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)

Analysis

IP Addresses

mail.sieuthihanquoc.com resolves to two IP numbers: 2607:f8b0:4006:80f::2013 and 142.250.217.147.

Other host names, for instance 1dwar1n.feedproxy.ghs.google.com, pub-2772283018937456.afd.ghs.google.com, ismrti.feedproxy.ghs.google.com, ayfo.es and pub-1997705011716567.afd.ghs.google.com share IP numbers with mail.sieuthihanquoc.com.

mail.sieuthihanquoc.com - robtex.com