mail.study.su - dns.ninja

`mail.study.su`

	DNSSEC	⚠️ Not signed
	A	82.97.243.107^{🇦🇺 TimeWeb-AS82.97.243.0/24}

`study.su`

	DNSSEC	⚠️ Not signed
	A	82.97.243.107^{🇦🇺 TimeWeb-AS82.97.243.0/24}
	NS	`ns1.rf.ru` ⭐
	NS	`ns2.rf.ru`
	TXT	`1RHu5HFTnsoiz9fXiL7wNgrP9O0rkHVjD7gAy3vcLxjXq94TU6`
	SOA	`ns1.rf.ru`hostmaster@study.su 2026-04-14 #4

Previously MX for

study.su

Same first word

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mail.kikirara.jp

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DNS History

4 records (1 active, 3 former)

○A212.42.37.362015-07-20 → 2016-12-03 · 4 obs

● 2015-07-20 15:20:20
● 2016-12-03 05:15:02
○ 2026-02-22 20:39:32
○ 2026-06-05 02:23:04

○A5.188.131.102026-02-22 → 2026-02-22 · 4 obs

○ 2016-12-03 05:15:02
● 2026-02-22 20:39:32
○ 2026-05-01 12:16:40
○ 2026-06-05 02:23:04

●A82.97.243.1072026-05-01 → 2026-06-05 · 3 obs

○ 2026-02-22 20:39:32
● 2026-05-01 12:16:40
● 2026-06-05 02:23:04

○CNAMEvms.ropnet.ru2015-07-20 → 2016-12-03 · 4 obs

● 2015-07-20 15:20:20
● 2016-12-03 05:15:02
○ 2026-02-22 20:39:32
○ 2026-06-05 02:23:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
su	a.dns.ripn.net, f.dns.ripn.net, d.dns.ripn.net, b.dns.ripn.net...	10 records
study.su	ns2.rf.ru, ns1.rf.ru	-

✅ Authoritative Response

Server:80.249.147.221

NS records: ns2.rf.ru, ns1.rf.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for study.su (unsigned zone)

⏱️ Timing

Total: 1240ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`82.97.243.107`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (f.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net...)

Analysis

IP Addresses

mail.study.su resolves to just one IP address, 82.97.243.107.

Two other host names, along with strigi.ru, mail.xn--h1aafh7b.xn--p1ai and steel-products.ru, also share IP numbers with mail.study.su.