linuxstudy.net - dns.ninja

`linuxstudy.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:21f2^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:c1fb^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.33.242^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.193.251^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`boyd.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b4b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`boyd.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`boyd.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`boyd.ns.cloudflare.com`
		A	108.162.193.75^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`boyd.ns.cloudflare.com`
		A	172.64.33.75^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`boyd.ns.cloudflare.com`
		A	173.245.59.75^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`boyd.ns.cloudflare.com`
NS	`dahlia.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a59^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c059^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dahlia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2059^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dahlia.ns.cloudflare.com`
		A	108.162.192.89^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	172.64.32.89^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	173.245.58.89^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.33.242, 172.67.193.251
		IPv6 hints	2606:4700:3033::6815:21f2, 2606:4700:3037::ac43:c1fb
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=181, name=cloudflare-ech.com
SOA	`boyd.ns.cloudflare.com`dns@cloudflare.com serial=2405082011

`net`

	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=1781031023

Same first word

linuxstudy.pe.kr

linuxstudy.cn

linuxstudy.net

linuxstudy.com

Similar names

studyinlux.com

studylinux.ru

studylinux.com

DNS History

29 records (6 active, 23 former)

●NSboyd.ns.cloudflare.com2026-02-27 → 2026-06-09 · 3 obs

○ 2017-03-26 01:21:46
● 2026-02-27 13:05:22
● 2026-06-09 19:20:36

●NSdahlia.ns.cloudflare.com2026-02-27 → 2026-06-09 · 3 obs

○ 2017-03-26 01:21:46
● 2026-02-27 13:05:22
● 2026-06-09 19:20:36

○NSns.nskorea.net2007-09-15 → 2007-09-15 · 3 obs

● 2007-09-15 23:21:50
○ 2015-11-09 12:48:42
○ 2026-06-09 19:20:36

○NSns2.nskorea.net2007-09-15 → 2007-09-15 · 3 obs

● 2007-09-15 23:21:50
○ 2015-11-09 12:48:42
○ 2026-06-09 19:20:36

○NSns47.domaincontrol.com2017-03-26 → 2017-03-26 · 4 obs

○ 2016-06-25 22:33:10
● 2017-03-26 01:21:46
○ 2026-02-27 13:05:22
○ 2026-06-09 19:20:36

○NSns48.domaincontrol.com2017-03-26 → 2017-03-26 · 4 obs

○ 2016-06-25 22:33:10
● 2017-03-26 01:21:46
○ 2026-02-27 13:05:22
○ 2026-06-09 19:20:36

○NSns5.awardspace.com2015-11-09 → 2016-06-25 · 5 obs

○ 2007-09-15 23:21:50
● 2015-11-09 12:48:42
● 2016-06-25 22:33:10
○ 2017-03-26 01:21:46
○ 2026-06-09 19:20:36

○NSns51.domaincontrol.com2015-11-09 → 2016-06-25 · 5 obs

○ 2007-09-15 23:21:50
● 2015-11-09 12:48:42
● 2016-06-25 22:33:10
○ 2017-03-26 01:21:46
○ 2026-06-09 19:20:36

○NSns52.domaincontrol.com2015-11-09 → 2016-06-25 · 5 obs

○ 2007-09-15 23:21:50
● 2015-11-09 12:48:42
● 2016-06-25 22:33:10
○ 2017-03-26 01:21:46
○ 2026-06-09 19:20:36

○NSns6.awardspace.com2015-11-09 → 2016-06-25 · 5 obs

○ 2007-09-15 23:21:50
● 2015-11-09 12:48:42
● 2016-06-25 22:33:10
○ 2017-03-26 01:21:46
○ 2026-06-09 19:20:36

○MXmail.linuxstudy.net2016-06-25 → 2016-06-25 · 4 obs

○ 2016-01-26 23:06:02
● 2016-06-25 22:33:10
○ 2017-03-26 01:21:46
○ 2026-06-09 19:20:36

○MXmailstore1.secureserver.net2017-03-26 → 2017-03-26 · 4 obs

○ 2016-06-25 22:33:10
● 2017-03-26 01:21:46
○ 2026-02-27 13:05:22
○ 2026-06-09 19:20:36

○MXmx.zoho.com2015-11-09 → 2016-01-26 · 5 obs

○ 2007-09-15 23:21:50
● 2015-11-09 12:48:42
● 2016-01-26 23:06:02
○ 2016-06-25 22:33:10
○ 2026-06-09 19:20:36

○MXmx2.zoho.com2015-11-09 → 2016-01-26 · 5 obs

○ 2007-09-15 23:21:50
● 2015-11-09 12:48:42
● 2016-01-26 23:06:02
○ 2016-06-25 22:33:10
○ 2026-06-09 19:20:36

○MXnospam1.ymail.net2007-09-15 → 2007-09-15 · 3 obs

● 2007-09-15 23:21:50
○ 2015-11-09 12:48:42
○ 2026-06-09 19:20:36

○MXpop3.ymail.net2007-09-15 → 2007-09-15 · 3 obs

● 2007-09-15 23:21:50
○ 2015-11-09 12:48:42
○ 2026-06-09 19:20:36

○MXsmtp.secureserver.net2017-03-26 → 2017-03-26 · 4 obs

○ 2016-06-25 22:33:10
● 2017-03-26 01:21:46
○ 2026-02-27 13:05:22
○ 2026-06-09 19:20:36

●A104.21.33.2422026-02-27 → 2026-06-09 · 6 obs

○ 2017-03-26 01:21:46
● 2026-02-27 13:05:22
● 2026-06-06 03:03:22
○ 2026-06-08 17:04:30
● 2026-06-08 17:41:10
● 2026-06-09 19:20:36

○A119.9.136.1792016-06-25 → 2016-06-25 · 4 obs

○ 2016-01-26 23:06:02
● 2016-06-25 22:33:10
○ 2017-03-26 01:21:46
○ 2026-06-09 19:20:36

●A172.67.193.2512026-02-27 → 2026-06-09 · 6 obs

○ 2017-03-26 01:21:46
● 2026-02-27 13:05:22
● 2026-06-06 03:03:22
○ 2026-06-08 17:04:30
● 2026-06-08 17:41:10
● 2026-06-09 19:20:36

○A188.114.96.02026-06-08 → 2026-06-08 · 4 obs

○ 2026-06-06 03:03:22
● 2026-06-08 17:04:30
○ 2026-06-08 17:41:10
○ 2026-06-09 19:20:36

○A188.114.97.02026-06-08 → 2026-06-08 · 4 obs

○ 2026-06-06 03:03:22
● 2026-06-08 17:04:30
○ 2026-06-08 17:41:10
○ 2026-06-09 19:20:36

○A210.183.214.22007-09-15 → 2007-09-15 · 3 obs

● 2007-09-15 23:21:50
○ 2015-11-09 12:48:42
○ 2026-06-09 19:20:36

○A223.252.36.702017-03-26 → 2017-03-26 · 4 obs

○ 2016-06-25 22:33:10
● 2017-03-26 01:21:46
○ 2026-02-27 13:05:22
○ 2026-06-09 19:20:36

●A2606:4700:3033::6815:21f22026-02-27 → 2026-06-09 · 6 obs

○ 2017-03-26 01:21:46
● 2026-02-27 13:05:22
● 2026-06-06 03:03:22
○ 2026-06-08 17:04:30
● 2026-06-08 17:41:10
● 2026-06-09 19:20:36

●A2606:4700:3037::ac43:c1fb2026-02-27 → 2026-06-09 · 6 obs

○ 2017-03-26 01:21:46
● 2026-02-27 13:05:22
● 2026-06-06 03:03:22
○ 2026-06-08 17:04:30
● 2026-06-08 17:41:10
● 2026-06-09 19:20:36

○A2a06:98c1:3120::2026-06-08 → 2026-06-08 · 4 obs

○ 2026-06-06 03:03:22
● 2026-06-08 17:04:30
○ 2026-06-08 17:41:10
○ 2026-06-09 19:20:36

○A2a06:98c1:3121::2026-06-08 → 2026-06-08 · 4 obs

○ 2026-06-06 03:03:22
● 2026-06-08 17:04:30
○ 2026-06-08 17:41:10
○ 2026-06-09 19:20:36

○A50.63.202.482015-11-09 → 2016-01-26 · 5 obs

○ 2007-09-15 23:21:50
● 2015-11-09 12:48:42
● 2016-01-26 23:06:02
○ 2016-06-25 22:33:10
○ 2026-06-09 19:20:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
linuxstudy.net	dahlia.ns.cloudflare.com, boyd.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.89

NS records: dahlia.ns.cloudflare.com, boyd.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxstudy.net (unsigned zone)

⏱️ Timing

Total: 616ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.193.251, 104.21.33.242`
AAAA	2	`2606:4700:3033::6815:21f2, 2606:4700:3037::ac43:c1fb`
NS	2	`boyd.ns.cloudflare.com, dahlia.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`boyd.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

linuxstudy.net points to 4 IP addresses — 104.21.33.242, 172.67.193.251, 2606:4700:3033::6815:21f2 and 2606:4700:3037::ac43:c1fb.

alvaradotechnology.com, bravard.fr, cortinaeaccoladed.xyz plus two other host names have IP numbers in common with linuxstudy.net.

Name Servers

linuxstudy.net uses two name servers for its delegation: boyd.ns.cloudflare.com and dahlia.ns.cloudflare.com.

The name server configuration of linuxstudy.net is shared with other domains, for instance mdjnet.net, jxdlgd.com, ebeca.net and two others.

linuxstudy.net has at least partial name server overlap with other domains, such as ger.monster, gigahash.org, fastcuhp.com and two others.

It is common to see these name servers used together with name servers sullivan.ns.cloudflare.com and aldo.ns.cloudflare.com.

Hosts with 6 IP addresses each:

boyd.ns.cloudflare.com has IP addresses 108.162.193.75, 172.64.33.75, 173.245.59.75 plus three more.

dahlia.ns.cloudflare.com has IP addresses 108.162.192.89, 172.64.32.89, 173.245.58.89 plus three more.