`mail.irkmaster.ru`

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	`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=1785118368

`irkmaster.ru`

	DNSSEC	⚠️ Not signed
	A	109.120.172.1^{🇷🇺 RUSONYX-AS109.120.172.0/24}
	NS	`ns1.infobox.org` ⭐
	NS	`ns2.infobox.org`
	MX	`mx.yandex.ru` ⭐
	TXT	`v=spf1 redirect=_spf.yandex.net`
	SOA	`ns1.infobox.org`master-s@irk.ru 2023-08-02 #1

Same first word

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DNS History

9 records (1 active, 8 former)

○MXmx.yandex.ru2016-03-02 → 2016-07-01 · 4 obs

● 2016-03-02 12:27:14
● 2016-07-01 13:41:36
○ 2026-06-24 19:04:30
○ 2026-07-27 02:12:58

○A213.180.193.252015-08-02 → 2016-07-01 · 4 obs

● 2015-08-02 18:54:14
● 2016-07-01 13:41:36
○ 2026-06-24 19:04:30
○ 2026-07-27 02:12:58

○A213.180.204.252015-08-02 → 2016-07-01 · 4 obs

● 2015-08-02 18:54:14
● 2016-07-01 13:41:36
○ 2026-06-24 19:04:30
○ 2026-07-27 02:12:58

○A2a02:6b8::252016-07-01 → 2016-07-01 · 4 obs

○ 2015-08-02 18:54:14
● 2016-07-01 13:41:36
○ 2026-06-24 19:04:30
○ 2026-07-27 02:12:58

○A87.250.250.252015-08-02 → 2016-07-01 · 4 obs

● 2015-08-02 18:54:14
● 2016-07-01 13:41:36
○ 2026-06-24 19:04:30
○ 2026-07-27 02:12:58

○A87.250.251.252015-08-02 → 2016-07-01 · 4 obs

● 2015-08-02 18:54:14
● 2016-07-01 13:41:36
○ 2026-06-24 19:04:30
○ 2026-07-27 02:12:58

○A93.158.134.252015-08-02 → 2016-07-01 · 4 obs

● 2015-08-02 18:54:14
● 2016-07-01 13:41:36
○ 2026-06-24 19:04:30
○ 2026-07-27 02:12:58

●CNAMEdomain.mail.yandex.net2015-08-02 → 2026-07-27 · 2 obs

● 2015-08-02 18:54:14
● 2026-07-27 02:12:58

○CNAMEmail.yandex.ru2016-03-02 → 2016-07-01 · 5 obs

○ 2015-08-02 18:54:14
● 2016-03-02 12:27:14
● 2016-07-01 13:41:36
○ 2026-06-24 19:04:30
○ 2026-07-27 02:12:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...	-
irkmaster.ru	ns1.infobox.org, ns2.infobox.org	-

✅ Authoritative Response

Server:89.253.252.13

NS records: ns1.infobox.org, ns2.infobox.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for irkmaster.ru (unsigned zone)

⏱️ Timing

Total: 1036ms | Queries: -

📄 Records

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

Analysis

IP Addresses

mail.irkmaster.ru resolves to the IP addresses 77.88.21.37 and 2a02:6b8::a4

Among the host names that share IP numbers with mail.irkmaster.ru are sepaproje.com, faradzhev.com, mail.stecter.ru and two others.

Name Servers

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

mail.irkmaster.ru has the same name server delegation as a number of other domains, such as 205.108.95.in-addr.arpa, 221.255.5.in-addr.arpa, browser.yandex.uz and two more.

mail.irkmaster.ru shares at least some of its name servers with other domains, including cmail.yandex.net, share.yandex.net, market.yandex.ru and two others.

These name servers are frequently seen alongside the name servers ns3.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.irkmaster.ru routes its mail through a single mail server, mx.yandex.ru.

mail.irkmaster.ru has the same mail server arrangement as a number of other domains, for example c-advocat.ru, labelshop.ru, jobbizz.ru and two more.

At least some of mail.irkmaster.ru's mail servers are shared with other domains, among them stej.ru, belonogov.pro and ilnt.ru.

mx.yandex.ru points to two IP addresses: 77.88.21.249 and 2a02:6b8::311.

mail.irkmaster.ru - robtex.com