`mail.ctr.ms`

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}
TXT	`mailru-verification: de5e58bac797a76d`
TXT	`v=spf1 redirect=_spf.yandex.net`
TXT	`yandex-verification: bee56b4396205cc2`
TXT	`google-site-verification=nDqpeshiROB8mM_RiyqO01xkpebe6eiweTxpX6vx8lk`
SOA	`ns3.yandex.ru`sysadmin@yandex.ru serial=1784548585

`ctr.ms`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:5da6^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:d480^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.93.166^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.212.128^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`savanna.ns.cloudflare.com` ⭐
NS	`sevki.ns.cloudflare.com`
MX	`mx.yandex.net` ⭐
TXT	`lava-verify=d0fe34aca4056592`
TXT	`v=spf1 redirect=_spf.yandex.net`
TXT	`yandex-verification: 4161e17e600877e2`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.93.166, 172.67.212.128
		IPv6 hints	2606:4700:3031::6815:5da6, 2606:4700:3034::ac43:d480
SOA	`savanna.ns.cloudflare.com`dns@cloudflare.com serial=2409890672

WOT: SAFE (61/100)
WOT: SAFE (66/100)

Previously MX for

ctr.ms

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DNS History

2 records (1 active, 1 former)

○A194.58.92.2062017-01-25 → 2017-01-25 · 3 obs

● 2017-01-25 01:59:18
○ 2026-03-09 11:12:06
○ 2026-07-20 12:21:28

●CNAMEdomain.mail.yandex.net2026-03-09 → 2026-07-20 · 2 obs

● 2026-03-09 11:12:06
● 2026-07-20 12:21:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ms	a.lactld.org, ns1.anycastdns.cz, ns2.anycastdns.cz, ms-ns.anycast.pch.net	7 records
ctr.ms	sevki.ns.cloudflare.com, savanna.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.164

NS records: sevki.ns.cloudflare.com, savanna.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctr.ms (unsigned zone)

⏱️ Timing

Total: 394ms | Queries: -

📄 Records

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

📌 Glue Records Collected

Total: 7

Out-of-bailiwick: 7 (a.lactld.org, a.lactld.org, ns1.anycastdns.cz...)

Analysis

IP Addresses

mail.ctr.ms points to the IP addresses 77.88.21.37 and 2a02:6b8::a4

mail.transclass.ru, mail.yandex.ru, mail.asnafgroup.az plus two other host names have IP numbers in common with mail.ctr.ms.

Name Servers

mail.ctr.ms uses two name servers for its delegation: ns3.yandex.ru and ns4.yandex.ru.

The name server configuration of mail.ctr.ms is shared with other domains, for instance flow.yandex.ru, pogoda.yandex.com, crt-test-alpha.ru and two others.

At least some of mail.ctr.ms's name servers are also used by other domains, among them fog.yandex.net.

The two host names ns3.yandex.ru and ns4.yandex.ru each have a pair of IP addresses: ns3.yandex.ru has 87.250.250.1 and 2a02:6b8::1001, and ns4.yandex.ru has 77.88.21.1 and 2a02:6b8:0:1::1:1.

Mail Servers

mail.ctr.ms uses one mail server — mx.yandex.ru.

The mail server setup of mail.ctr.ms matches that of other domains such as simclean.ru, rudee.ru, proton.ru and two others.

At least some of the mail servers used by mail.ctr.ms are shared with other domains: imperiadverei.ru, su-print.ru, klimenko.kz and two others among them.

These mail servers tend to be used in conjunction with the mail servers mx.yandex.net.

mx.yandex.ru directs to two IP numbers, 77.88.21.249 and 2a02:6b8::311.

mail.ctr.ms - dns.ninja

mail.ctr.ms

ctr.ms