mail.sysadmins.su - dns.ninja

mail.sysadmins.su

CNAMEdomain.mail.yandex.net
CNAMEmail.yandex.ru
DNSSEC⚠️ Not signed
A2a02:6b8::a4🇷🇺 TELETECH2a02:6b8::/32 Yandex network
PTRmail-yandex-ru-production-external.stable.qloud-b.yandex.net
A77.88.21.37🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network
NSns3.yandex.ru ⭐
A2a02:6b8::1001🇷🇺 TELETECH2a02:6b8::/32 Yandex network
PTRns3.yandex.ru
A87.250.250.1🇷🇺 TELETECH87.250.224.0/19 Yandex network
PTRns3.yandex.ru
NSns4.yandex.ru
A2a02:6b8:0:1::1:1🇷🇺 TELETECH2a02:6b8::/32 Yandex network
PTRns4.yandex.ru
A77.88.21.1🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network
PTRns4.yandex.ru
MXmx.yandex.ru ⭐
A2a02:6b8::311🇷🇺 TELETECH2a02:6b8::/32 Yandex network
PTRmxfront.stable.qloud-b.yandex.net
A77.88.21.249🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network
PTRmxfront.stable.qloud-b.yandex.net
TXTv=spf1 redirect=_spf.yandex.net
TXTyandex-verification: bee56b4396205cc2
TXTgoogle-site-verification=nDqpeshiROB8mM_RiyqO01xkpebe6eiweTxpX6vx8lk
TXTmailru-verification: de5e58bac797a76d
SOAns3.yandex.rusysadmin@yandex.ru serial=1782652496

sysadmins.su

DNSSEC⚠️ Not signed
NSdns1.yandex.net ⭐ ⚠️ Not in zone NS records
NSdns2.yandex.net ⚠️ Not in zone NS records
MXmx.yandex.net ⭐
TXTv=spf1 redirect=_spf.yandex.net
SOAdns1.yandex.netdns-hosting@yandex.ru serial=10
WOT: UNKNOWN (61/100)

Same first word

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DNS History

6 records (1 active, 5 former)

20162017201820192020202120222023202420252026A81.19.78.8381.19.78.8481.19.78.8581.19.78.86CNAMEdomain.mail.yandex.netmail.rambler.ru
○A81.19.78.832015-08-19 → 2015-08-19 · 2 obs
● 2015-08-19 09:26:30
○ 2026-06-28 14:03:34
○A81.19.78.842015-08-19 → 2015-08-19 · 2 obs
● 2015-08-19 09:26:30
○ 2026-06-28 14:03:34
○A81.19.78.852015-08-19 → 2015-08-19 · 2 obs
● 2015-08-19 09:26:30
○ 2026-06-28 14:03:34
○A81.19.78.862015-08-19 → 2015-08-19 · 2 obs
● 2015-08-19 09:26:30
○ 2026-06-28 14:03:34
●CNAMEdomain.mail.yandex.net2026-06-28 → 2026-06-28 · 2 obs
○ 2015-12-04 17:24:06
● 2026-06-28 14:03:34
○CNAMEmail.rambler.ru2015-08-19 → 2015-08-19 · 3 obs
● 2015-08-19 09:26:30
○ 2015-12-04 17:24:06
○ 2026-06-28 14:03:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sua.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...-
sysadmins.sudns1.yandex.net, dns2.yandex.net-

✅ Authoritative Response

Server:213.180.204.213

NS records: dns1.yandex.net, dns2.yandex.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysadmins.su (unsigned zone)

⏱️ Timing

Total: 1188ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1domain.mail.yandex.net

Analysis

IP Addresses

mail.sysadmins.su directs to two IP numbers, 77.88.21.37 and 2a02:6b8::a4

Among the host names that share IP numbers with mail.sysadmins.su are tempkorea.com, mail.technodreamscreation.com, mail.yandex.by and two others.

Name Servers

Two name servers handle the delegation for mail.sysadmins.su: ns3.yandex.ru and ns4.yandex.ru.

mail.sysadmins.su has the same name server delegation as a number of other domains, such as 44.88.77.in-addr.arpa, hotelsyandex.ru, routlab.info and two more.

mail.sysadmins.su at least partially shares name servers with other domains, including yandexcloud.net, haze.yandex.net, market.yandex.net and techadmin.yandex.net.

These name servers are frequently paired with the name servers ns5.yandex.ru and ns6.yandex.ru.

ns3.yandex.ru and ns4.yandex.ru both carry two IP addresses. The A records for ns3.yandex.ru are 87.250.250.1 and 2a02:6b8::1001; the A records for ns4.yandex.ru are 77.88.21.1 and 2a02:6b8:0:1::1:1.

Mail Servers

mail.sysadmins.su routes its mail through a single mail server, mx.yandex.ru.

mail.sysadmins.su has the same mail server arrangement as a number of other domains, for example terra-m.net, bulavina.com, setmasteradd.ru and two more.

mail.sysadmins.su uses mail servers that are also used by other domains, including demariya.ru, spring-projects.ru and pravo18.ru.

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