4study.com - dns.ninja

`4study.com`

DNSSEC	⚠️ Not signed
A	3.96.82.220^{🇨🇦 Amazon3.96.0.0/15 EC2 YUL prefix}
		PTR	`ec2-3-96-82-220.ca-central-1.compute.amazonaws.com`
A	16.54.120.155^{🇺🇸 Amazon16.54.0.0/15 EC2 YUL prefix}
NS	`singapore.power-dns.com` ⭐
		A	3.96.82.220^{🇨🇦 Amazon3.96.0.0/15 EC2 YUL prefix}
			PTR	`ec2-3-96-82-220.ca-central-1.compute.amazonaws.com`
		A	16.54.120.155^{🇺🇸 Amazon16.54.0.0/15 EC2 YUL prefix}
			PTR	`ec2-16-54-120-155.ca-central-1.compute.amazonaws.com`
NS	`ns1.power-dns.com`
		A	13.58.50.225^{🇺🇸 Amazon13.58.0.0/15 EC2 CMH prefix}
			PTR	`ec2-13-58-50-225.us-east-2.compute.amazonaws.com`
NS	`ns2.power-dns.com`
		A	188.166.142.159^{🇳🇱 DIGITALOCEAN188.166.140.0/22 DigitalOcean}
NS	`ns3.power-dns.com`
		A	139.59.220.175^{🇸🇬 DIGITALOCEAN139.59.220.0/22 DigitalOcean}
MX	`mx1.ewebdevelopment.com` ⭐
		A	159.203.54.48^{🇨🇦 DIGITALOCEAN159.203.52.0/22 DigitalOcean}
MX	`mx2.ewebdevelopment.com`⁽⁵⁾
		A	188.166.142.73^{🇳🇱 DIGITALOCEAN188.166.140.0/22 DigitalOcean}
TXT	`934c3bfaa10e7d053ed251a82e3f4a82d19da885`
TXT	`91f786e2661531d62a5e4bf8dc941c30c7391ed6`
TXT	`v=spf1 include:u2069692.wl.sendgrid.net -all`
TXT	`afternic-verification-VKoxaZkQawZ8VVht35n43c`
SOA	`singapore.power-dns.com`hostmaster@power-dns.com 2025-01-15 #1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1785908994

Same first word

4study.de

4study.nl

4study.pro

4study.com

4study.cn

4study.ir

Similar names

study4.com

study4.me

study4.net

study4.tw

study4.fun

DNS History

35 records (8 active, 27 former)

○NSamsterdam.power-dns.com2017-09-03 → 2026-06-30 · 11 obs

○ 2016-12-07 12:54:42
● 2017-09-03 02:06:36
○ 2026-02-26 07:46:48
● 2026-02-26 09:30:36
○ 2026-02-27 23:05:28
● 2026-03-01 01:16:36
○ 2026-04-01 05:03:04
○ 2026-06-14 23:45:22
● 2026-06-30 01:38:56
○ 2026-07-03 16:41:42
○ 2026-08-05 06:05:40

○NSip-172-26-1-146.us-east-2.compute.internal2026-02-26 → 2026-07-03 · 9 obs

○ 2017-09-03 02:06:36
● 2026-02-26 07:46:48
○ 2026-02-26 09:30:36
○ 2026-04-01 05:03:04
● 2026-04-24 03:10:12
● 2026-05-15 14:21:26
○ 2026-06-14 23:45:22
● 2026-07-03 16:41:42
○ 2026-08-05 06:05:40

●NSns1.power-dns.com2015-06-10 → 2026-08-05 · 7 obs

● 2015-06-10 13:15:16
○ 2015-10-25 17:47:34
○ 2016-01-24 19:45:22
● 2016-04-23 00:32:54
○ 2016-12-07 12:54:42
● 2017-09-03 02:06:36
● 2026-08-05 06:05:40

●NSns2.power-dns.com2015-06-10 → 2026-08-05 · 5 obs

● 2015-06-10 13:15:16
● 2016-01-24 19:45:22
○ 2016-04-23 00:32:54
● 2016-12-07 12:54:42
● 2026-08-05 06:05:40

●NSns3.power-dns.com2026-02-26 → 2026-08-05 · 3 obs

○ 2017-09-03 02:06:36
● 2026-02-26 07:46:48
● 2026-08-05 06:05:40

●NSsingapore.power-dns.com2026-02-27 → 2026-08-05 · 10 obs

○ 2026-02-26 07:46:48
○ 2026-02-26 09:30:36
● 2026-02-27 23:05:28
○ 2026-03-01 01:16:36
● 2026-04-01 05:03:04
○ 2026-04-24 03:10:12
○ 2026-05-15 14:21:26
● 2026-06-14 23:45:22
○ 2026-06-30 01:38:56
● 2026-08-05 06:05:40

○MXmail.dovemail.com2015-06-10 → 2016-12-07 · 4 obs

● 2015-06-10 13:15:16
● 2016-12-07 12:54:42
○ 2017-09-03 02:06:36
○ 2026-08-05 06:05:40

●MXmx1.ewebdevelopment.com2017-09-03 → 2026-08-05 · 3 obs

○ 2016-12-07 12:54:42
● 2017-09-03 02:06:36
● 2026-08-05 06:05:40

●MXmx2.ewebdevelopment.com2017-09-03 → 2026-08-05 · 3 obs

○ 2016-12-07 12:54:42
● 2017-09-03 02:06:36
● 2026-08-05 06:05:40

○A15.156.10.2042026-04-24 → 2026-04-24 · 4 obs

○ 2026-04-01 05:03:04
● 2026-04-24 03:10:12
○ 2026-05-15 14:21:26
○ 2026-08-05 06:05:40

○A15.157.18.122026-02-26 → 2026-02-26 · 5 obs

○ 2017-09-03 02:06:36
● 2026-02-26 07:46:48
● 2026-02-26 09:30:36
○ 2026-02-27 23:05:28
○ 2026-08-05 06:05:40

○A15.157.197.2332026-05-15 → 2026-05-15 · 4 obs

○ 2026-04-24 03:10:12
● 2026-05-15 14:21:26
○ 2026-06-14 23:45:22
○ 2026-08-05 06:05:40

○A15.222.124.1282026-06-14 → 2026-06-14 · 4 obs

○ 2026-05-15 14:21:26
● 2026-06-14 23:45:22
○ 2026-06-30 01:38:56
○ 2026-08-05 06:05:40

○A15.222.147.1142026-02-26 → 2026-08-05 · 2 obs

○ 2026-02-26 07:46:48
○ 2026-08-05 06:05:40

○A15.223.160.1712026-02-26 → 2026-02-26 · 5 obs

○ 2017-09-03 02:06:36
● 2026-02-26 07:46:48
● 2026-02-26 09:30:36
○ 2026-02-27 23:05:28
○ 2026-08-05 06:05:40

○A16.52.221.262026-05-15 → 2026-05-15 · 4 obs

○ 2026-04-24 03:10:12
● 2026-05-15 14:21:26
○ 2026-06-14 23:45:22
○ 2026-08-05 06:05:40

○A16.52.254.12026-02-26 → 2026-08-05 · 2 obs

○ 2026-02-26 07:46:48
○ 2026-08-05 06:05:40

●A16.54.120.1552026-08-05 → 2026-08-05 · 2 obs

○ 2026-07-05 05:54:52
● 2026-08-05 06:05:40

○A16.54.13.1012026-02-27 → 2026-02-27 · 4 obs

○ 2026-02-26 09:30:36
● 2026-02-27 23:05:28
○ 2026-03-01 01:16:36
○ 2026-08-05 06:05:40

○A16.54.165.1682026-07-05 → 2026-07-05 · 3 obs

○ 2026-07-03 16:41:42
● 2026-07-05 05:54:52
○ 2026-08-05 06:05:40

○A16.54.19.742026-04-01 → 2026-04-01 · 4 obs

○ 2026-03-01 01:16:36
● 2026-04-01 05:03:04
○ 2026-04-24 03:10:12
○ 2026-08-05 06:05:40

○A16.54.81.02026-06-30 → 2026-06-30 · 4 obs

○ 2026-06-14 23:45:22
● 2026-06-30 01:38:56
○ 2026-07-03 16:41:42
○ 2026-08-05 06:05:40

○A16.54.9.1192026-04-01 → 2026-04-01 · 4 obs

○ 2026-03-01 01:16:36
● 2026-04-01 05:03:04
○ 2026-04-24 03:10:12
○ 2026-08-05 06:05:40

○A174.36.107.1302015-06-10 → 2016-04-23 · 4 obs

● 2015-06-10 13:15:16
● 2016-04-23 00:32:54
○ 2016-12-07 12:54:42
○ 2026-08-05 06:05:40

○A174.37.172.1622015-06-10 → 2016-12-07 · 6 obs

● 2015-06-10 13:15:16
○ 2015-10-25 17:47:34
○ 2016-04-23 00:32:54
● 2016-12-07 12:54:42
○ 2017-09-03 02:06:36
○ 2026-08-05 06:05:40

○A3.96.239.352026-06-14 → 2026-06-14 · 4 obs

○ 2026-05-15 14:21:26
● 2026-06-14 23:45:22
○ 2026-06-30 01:38:56
○ 2026-08-05 06:05:40

○A3.96.40.2032026-03-01 → 2026-03-01 · 4 obs

○ 2026-02-27 23:05:28
● 2026-03-01 01:16:36
○ 2026-04-01 05:03:04
○ 2026-08-05 06:05:40

●A3.96.82.2202026-08-05 → 2026-08-05 · 2 obs

○ 2026-07-05 05:54:52
● 2026-08-05 06:05:40

○A3.97.135.1212026-02-27 → 2026-02-27 · 4 obs

○ 2026-02-26 09:30:36
● 2026-02-27 23:05:28
○ 2026-03-01 01:16:36
○ 2026-08-05 06:05:40

○A3.97.178.2102026-06-30 → 2026-06-30 · 4 obs

○ 2026-06-14 23:45:22
● 2026-06-30 01:38:56
○ 2026-07-05 05:54:52
○ 2026-08-05 06:05:40

○A3.98.27.2332026-03-01 → 2026-03-01 · 4 obs

○ 2026-02-27 23:05:28
● 2026-03-01 01:16:36
○ 2026-04-01 05:03:04
○ 2026-08-05 06:05:40

○A35.182.106.1762017-09-03 → 2017-09-03 · 4 obs

○ 2016-12-07 12:54:42
● 2017-09-03 02:06:36
○ 2026-02-26 07:46:48
○ 2026-08-05 06:05:40

○A35.182.70.2332026-07-03 → 2026-07-03 · 3 obs

○ 2026-06-30 01:38:56
● 2026-07-03 16:41:42
○ 2026-08-05 06:05:40

○A35.182.85.1442017-09-03 → 2017-09-03 · 4 obs

○ 2016-12-07 12:54:42
● 2017-09-03 02:06:36
○ 2026-02-26 07:46:48
○ 2026-08-05 06:05:40

○A99.79.11.1272026-04-24 → 2026-04-24 · 4 obs

○ 2026-04-01 05:03:04
● 2026-04-24 03:10:12
○ 2026-05-15 14:21:26
○ 2026-08-05 06:05:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net...	-
4study.com	ns1.power-dns.com, ns2.power-dns.com, ns3.power-dns.com	3 records

✅ Authoritative Response

Server:13.58.50.225

NS records: ns1.power-dns.com, ns2.power-dns.com, ns3.power-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 594ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`16.54.120.155, 3.96.82.220`
NS	3	`ns1.power-dns.com, ns3.power-dns.com...`
MX	2	`mx2.ewebdevelopment.com (pri: 5), mx1.ewebdevelopment.com (pri: 1)`
TXT	4	`934c3bfaa10e7d053ed251a82e3f4a82d19da885, 91f786e2661531d62a5e4bf8dc941c30c7391ed6...`
SOA	1	`ip-172-26-1-146.us-east-2.compute.intern`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.power-dns.com, ns2.power-dns.com, ns3.power-dns.com)

Analysis

IP Addresses

4study.com has two IP addresses: 3.96.82.220 and 16.54.120.155

a.mx.thoster.com, spinemaster.com, scheuck.com plus two other host names have IP numbers in common with 4study.com.

Name Servers

Four name servers handle the delegation for 4study.com: ns1.power-dns.com, ns2.power-dns.com, ns3.power-dns.com and singapore.power-dns.com.

There is at least partial name server overlap between 4study.com and other domains — cam-star.com, cd-s.com, cgamer.com and two more among them.

These name servers frequently co-occur with the name servers ip-172-26-1-146.us-east-2.compute.internal and amsterdam.power-dns.com.

Host names pointing to two IP addresses:

singapore.power-dns.com resolves to 3.96.82.220 and 16.54.120.155.

Host names resolving to a single IP address:

ns1.power-dns.com resolves to 13.58.50.225.

ns2.power-dns.com resolves to 188.166.142.159.

ns3.power-dns.com resolves to 139.59.220.175.

Mail Servers

4study.com uses two mail servers, mx1.ewebdevelopment.com and mx2.ewebdevelopment.com.

The mail server setup of 4study.com matches that of other domains such as paxino.com, conserveflorida.com, www.jewelrybrand.com and two others.

mx1.ewebdevelopment.com → 159.203.54.48 and mx2.ewebdevelopment.com → 188.166.142.73: one IP number per host name.