mx1.itstudy.ru - dns.ninja

`mx1.itstudy.ru`

DNSSEC	⚠️ Not signed
A	91.201.54.8^{🇷🇺 INTERNET-PRO-AS91.201.54.0/23 NetAngels.RU network in Yekaterinburg}
		PTR	`mx1.netangels.ru`

`itstudy.ru`

	DNSSEC	⚠️ Not signed
	A	91.201.52.176^{🇷🇺 INTERNET-PRO-AS91.201.52.0/24}
	NS	`ns1.netangels.ru` ⭐
	NS	`ns2.netangels.ru`
	NS	`ns3.netangels.ru` ⚠️ Not in parent delegation
	NS	`ns4.netangels.ru` ⚠️ Not in parent delegation
	MX	`mx0.itstudy.ru` ⭐
	MX	`mx1.itstudy.ru`⁽⁵⁾
	TXT	`v=spf1 redirect=netangels.ru`
	TXT	`v=spf1 a include:netangels.ru ~all`
	SOA	`ns1.netangels.ru`hostmaster@netangels.ru serial=1781283712

WOT: SAFE (63/100)
WOT: SAFE (76/100)

MX for

itstudy.ru

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DNS History

1 record (1 active, 0 former)

●A91.201.54.82015-06-25 → 2026-06-12 · 2 obs

● 2015-06-25 21:35:12
● 2026-06-12 19:59:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	f.dns.ripn.net, a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net...	-
itstudy.ru	ns1.netangels.ru, ns2.netangels.ru	2 records

✅ Authoritative Response

Server:91.201.52.2

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for itstudy.ru (unsigned zone)

⏱️ Timing

Total: 815ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.201.54.8`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.netangels.ru, ns2.netangels.ru)

Analysis

Mail Server Role

mx1.itstudy.ru is used as a mail server for itstudy.ru.

mx0.itstudy.ru and mx1.itstudy.ru tend to appear jointly as mail servers.

IP Addresses

mx1.itstudy.ru points to a single IP number: 91.201.54.8.

Additional host names — mx1.tdprom.com, mx1.beton-group.ru, mx1.i-rider.ru and two others — share IP numbers with mx1.itstudy.ru.