4study.pro - dns.ninja

`4study.pro`

DNSSEC	⚠️ Not signed
A	89.253.219.33^{🇷🇺 RUSONYX-AS89.253.216.0/21 RUSONYX-RU}
		PTR	`vps-21001003-314970.host4g.ru`
NS	`ns1.reg.ru` ⭐
		A	2a00:f940:9::1:1^{🇷🇺 AS-REGRU2a00:f940:9::/48 Reg.Ru Hosting}
		A	2a00:f940:9::2:1^{🇷🇺 AS-REGRU2a00:f940:9::/48 Reg.Ru Hosting}
		A	176.99.13.11^{🇷🇺 AS-REGRU176.99.13.0/24 Reg.Ru}
			PTR	`ns1.reg.ru`
		A	176.99.13.13^{🇷🇺 AS-REGRU176.99.13.0/24 Reg.Ru}
			PTR	`ns1.reg.ru`
		A	176.99.13.15^{🇷🇺 AS-REGRU176.99.13.0/24 Reg.Ru}
			PTR	`ns1.reg.ru`
		A	176.99.13.17^{🇷🇺 AS-REGRU176.99.13.0/24 Reg.Ru}
			PTR	`ns1.reg.ru`
		A	194.58.117.11^{🇷🇺 AS-REGRU194.58.117.0/24 Reg.Ru}
			PTR	`ns1.reg.ru`
		A	194.58.117.13^{🇷🇺 AS-REGRU194.58.117.0/24 Reg.Ru}
			PTR	`ns1.reg.ru`
		A	194.58.117.15^{🇷🇺 AS-REGRU194.58.117.0/24 Reg.Ru}
			PTR	`ns1.reg.ru`
		A	194.58.117.17^{🇷🇺 AS-REGRU194.58.117.0/24 Reg.Ru}
			PTR	`ns1.reg.ru`
NS	`ns2.reg.ru`
		A	2a00:f940:9::1:2^{🇷🇺 AS-REGRU2a00:f940:9::/48 Reg.Ru Hosting}
		A	2a00:f940:9::2:2^{🇷🇺 AS-REGRU2a00:f940:9::/48 Reg.Ru Hosting}
		A	176.99.13.12^{🇷🇺 AS-REGRU176.99.13.0/24 Reg.Ru}
			PTR	`ns2.reg.ru`
		A	176.99.13.14^{🇷🇺 AS-REGRU176.99.13.0/24 Reg.Ru}
			PTR	`ns2.reg.ru`
		A	176.99.13.16^{🇷🇺 AS-REGRU176.99.13.0/24 Reg.Ru}
			PTR	`ns2.reg.ru`
		A	176.99.13.18^{🇷🇺 AS-REGRU176.99.13.0/24 Reg.Ru}
			PTR	`ns2.reg.ru`
		A	194.58.117.12^{🇷🇺 AS-REGRU194.58.117.0/24 Reg.Ru}
			PTR	`ns2.reg.ru`
		A	194.58.117.14^{🇷🇺 AS-REGRU194.58.117.0/24 Reg.Ru}
			PTR	`ns2.reg.ru`
		A	194.58.117.16^{🇷🇺 AS-REGRU194.58.117.0/24 Reg.Ru}
			PTR	`ns2.reg.ru`
		A	194.58.117.18^{🇷🇺 AS-REGRU194.58.117.0/24 Reg.Ru}
			PTR	`ns2.reg.ru`
MX	`mx.yandex.net` ⭐
		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	`v=spf1 include:mxsmtp.sendpulse.com +a +mx ~all`
TXT	`google-site-verification=3eB7ZV9CwBT2HoyhV_2xqozMP8-gVCVxyFQNhUum7JE`
TXT	`google-site-verification=wwkaAqbT91PDO2nHEYOdh03AFx2qPw0HdAT9gJkrgtw`
SOA	`ns1.reg.ru`hostmaster@ns1.reg.ru serial=1759248784

`pro`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.pro.afilias-nst.info` ⭐
	NS	`a2.pro.afilias-nst.info`
	NS	`b0.pro.afilias-nst.org`
	NS	`b2.pro.afilias-nst.org`
	NS	`c0.pro.afilias-nst.info`
	NS	`d0.pro.afilias-nst.org`
	SOA	`a0.pro.afilias-nst.info`hostmaster@donuts.email serial=1783471821

Subdomains

www.4study.pro

Same first word

4study.nl

4study.pro

4study.com

4study.cn

4study.ir

4study.de

Similar names

study4.com

study4.me

study4.net

study4.tw

study4.fun

DNS History

9 records (4 active, 5 former)

○NSns1.hosting.reg.ru2020-03-26 → 2020-03-26 · 3 obs

● 2020-03-26 05:49:06
○ 2026-03-26 11:14:40
○ 2026-07-08 01:56:04

●NSns1.reg.ru2026-03-26 → 2026-07-08 · 3 obs

○ 2020-03-26 05:49:06
● 2026-03-26 11:14:40
● 2026-07-08 01:56:04

○NSns2.hosting.reg.ru2020-03-26 → 2020-03-26 · 3 obs

● 2020-03-26 05:49:06
○ 2026-03-26 11:14:40
○ 2026-07-08 01:56:04

●NSns2.reg.ru2026-03-26 → 2026-07-08 · 3 obs

○ 2020-03-26 05:49:06
● 2026-03-26 11:14:40
● 2026-07-08 01:56:04

○NSserver152.hosting.reg.ru2020-03-26 → 2020-03-26 · 3 obs

● 2020-03-26 05:49:06
○ 2026-03-26 11:14:40
○ 2026-07-08 01:56:04

●MXmx.yandex.net2020-03-26 → 2026-07-08 · 2 obs

● 2020-03-26 05:49:06
● 2026-07-08 01:56:04

○A2a00:f940:2:2:1:1:0:372020-03-26 → 2020-03-26 · 3 obs

● 2020-03-26 05:49:06
○ 2026-03-26 11:14:40
○ 2026-07-08 01:56:04

○A37.140.192.82020-03-26 → 2020-03-26 · 3 obs

● 2020-03-26 05:49:06
○ 2026-03-26 11:14:40
○ 2026-07-08 01:56:04

●A89.253.219.332026-03-26 → 2026-07-08 · 3 obs

○ 2020-03-26 05:49:06
● 2026-03-26 11:14:40
● 2026-07-08 01:56:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pro	a0.pro.afilias-nst.info, d0.pro.afilias-nst.org, b2.pro.afilias-nst.org, b0.pro.afilias-nst.org...	12 records
4study.pro	ns2.reg.ru, ns1.reg.ru	-

✅ Authoritative Response

Server:176.99.13.12

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 4study.pro (unsigned zone)

⏱️ Timing

Total: 1120ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.253.219.33`
NS	2	`ns1.reg.ru, ns2.reg.ru`
MX	1	`mx.yandex.net (pri: 0)`
TXT	3	`v=spf1 include:mxsmtp.sendpulse.com +a +, google-site-verification=3eB7ZV9CwBT2Hoy...`
SOA	1	`ns1.reg.ru hostmaster.ns1.reg.ru`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (a0.pro.afilias-nst.info, a0.pro.afilias-nst.info, d0.pro.afilias-nst.org...)

Analysis

Hierarchy

www.4study.pro is a subdomain of 4study.pro.

IP Addresses

4study.pro resolves to just one IP address, 89.253.219.33.

Among the host names that share IP numbers with 4study.pro is www.4study.pro, as one example.

Name Servers

The NS records for 4study.pro delegate to ns1.reg.ru and ns2.reg.ru.

4study.pro shares its NS records with other domains, for example xn--b1amcflgdxj0g.xn--p1ai, vip-centre.ru, eventtime.ru and two others.

The name servers for 4study.pro overlap at least in part with those of other domains, including volik.su and blmz.ru.

DNS names with 10 IP addresses:

ns1.reg.ru maps to 176.99.13.11, 176.99.13.13, 176.99.13.15 and 7 additional IP addresses.

ns2.reg.ru maps to 176.99.13.12, 176.99.13.14, 176.99.13.16 and 7 additional IP addresses.

Mail Servers

The sole mail server for 4study.pro is mx.yandex.net.

Among the domains sharing a mail server setup with 4study.pro are autooptix.com, orgazme.ru, maxmin.ru and two others.

4study.pro partially shares its mail servers with other domains — including blythecollection.com, siriustravel.ru, ienemy.ru and 7detalei.ee.

mx.yandex.net resolves to two IP numbers — 77.88.21.249 and 2a02:6b8::311.