`mail.sieuthisimthe.com`

CNAME	`domain.mail.yandex.net`
CNAME	`mail.yandex.ru`
DNSSEC	⚠️ Not signed
A	2a02:6b8::a4^{🇷🇺 TELETECH2a02:6b8::/32 Yandex network}
		PTR	`mail-yandex-ru-production-external.stable.qloud-b.yandex.net`
A	77.88.21.37^{🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network}
NS	`ns3.yandex.ru` ⭐
		A	2a02:6b8::1001^{🇷🇺 TELETECH2a02:6b8::/32 Yandex network}
			PTR	`ns3.yandex.ru`
		A	87.250.250.1^{🇷🇺 TELETECH87.250.224.0/19 Yandex network}
			PTR	`ns3.yandex.ru`
NS	`ns4.yandex.ru`
		A	2a02:6b8:0:1::1:1^{🇷🇺 TELETECH2a02:6b8::/32 Yandex network}
			PTR	`ns4.yandex.ru`
		A	77.88.21.1^{🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network}
			PTR	`ns4.yandex.ru`
MX	`mx.yandex.ru` ⭐
		A	2a02:6b8::311^{🇷🇺 TELETECH2a02:6b8::/32 Yandex network}
			PTR	`mxfront.stable.qloud-b.yandex.net`
		A	77.88.21.249^{🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network}
			PTR	`mxfront.stable.qloud-b.yandex.net`
TXT	`yandex-verification: bee56b4396205cc2`
TXT	`google-site-verification=nDqpeshiROB8mM_RiyqO01xkpebe6eiweTxpX6vx8lk`
TXT	`mailru-verification: de5e58bac797a76d`
TXT	`v=spf1 redirect=_spf.yandex.net`
SOA	`ns3.yandex.ru`sysadmin@yandex.ru serial=1778637493

`sieuthisimthe.com`

	DNSSEC	⚠️ Not signed
	A	103.145.62.139^{🇻🇳 IDCONLINE-AS-VN103.145.62.0/23 IDCONLINE-VN}
	NS	`nsbak.pavietnam.net` ⭐
	NS	`ns1.pavietnam.vn`
	NS	`ns2.pavietnam.vn`
	MX	`mail.sieuthisimthe.com` ⭐
	MX	`mx.yandex.net` ⭐
	TXT	`v=spf1 a mx ~all`
	TXT	`yandex-verification: da093bcb45c54b1d`
	TXT	`v=spf1 redirect=_spf.yandex.net`
	SOA	`nsbak.pavietnam.net`hostmaster@sieuthisimthe.com 2025-04-03 #6

rank #909404 globally
rank #402917 in the tld

MX for

sieuthisimthe.com

Same first word

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DNS History

2 records (1 active, 1 former)

○A210.245.124.1822008-03-10 → 2008-03-10 · 3 obs

● 2008-03-10 13:42:28
○ 2015-10-25 09:51:10
○ 2026-05-13 02:19:14

●CNAMEdomain.mail.yandex.net2026-03-08 → 2026-05-13 · 2 obs

● 2026-03-08 07:55:24
● 2026-05-13 02:19:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, d.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net...	-
sieuthisimthe.com	nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn	-

✅ Authoritative Response

Server:112.213.89.22

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sieuthisimthe.com (unsigned zone)

⏱️ Timing

Total: 2809ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`domain.mail.yandex.net`

Analysis

Mail Server Role

mail.sieuthisimthe.com serves as the mail server for sieuthisimthe.com.

mx.yandex.net commonly serves as a mail server together with mail.sieuthisimthe.com.

IP Addresses

mail.sieuthisimthe.com points to two IP numbers: 2a02:6b8::a4 and 77.88.21.37.

Other host names, for instance mail.yandex.lv, mail.yandex.lt, namip.ru, mail.yandex.fr and mail.sozidatel.com share IP numbers with mail.sieuthisimthe.com.

Name Servers

mail.sieuthisimthe.com's delegation is to two name servers ns3.yandex.ru and ns4.yandex.ru.

mail.sieuthisimthe.com shares the same name server configuration as other domains, such as 130.154.178.in-addr.arpa, weather.yandex.ru, 90.9.37.in-addr.arpa, yandex.video and promo.page.

mail.sieuthisimthe.com shares name servers with other domains at least partially, for example stable.qloud-b.yandex.net.

Host names with two IP numbers: ns3.yandex.ru points to 2a02:6b8::1001 and 87.250.250.1; ns4.yandex.ru points to 2a02:6b8:0:1::1:1 and 77.88.21.1

Mail Servers

mail.sieuthisimthe.com is served by a single mail server, mx.yandex.ru.

mail.sieuthisimthe.com uses the same mail server setup as other domains such as doglobal.ru, iris-med.ru, taekwondo.ru, imedved.ru and apoo.ru.

mail.sieuthisimthe.com shares some mail servers with other domains, including kramarev.org, diejsel.ru, montessori-orel.ru, 9mdk.com and tdpa.ru.

Hostname mx.yandex.ru resolves to two IPs: 2a02:6b8::311 and 77.88.21.249.

mail.sieuthisimthe.com - robtex.com