`linuxprotraining.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:d130^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:ff3^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.15.243^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.209.48^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`nia.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ad2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nia.ns.cloudflare.com`
		A	108.162.192.210^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nia.ns.cloudflare.com`
		A	172.64.32.210^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nia.ns.cloudflare.com`
		A	173.245.58.210^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nia.ns.cloudflare.com`
NS	`ruben.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c47^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruben.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c347^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ruben.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2347^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ruben.ns.cloudflare.com`
		A	108.162.195.71^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruben.ns.cloudflare.com`
		A	162.159.44.71^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruben.ns.cloudflare.com`
		A	172.64.35.71^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruben.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.15.243, 172.67.209.48
		IPv6	2606:4700:3034::ac43:d130, 2606:4700:3036::6815:ff3
SOA	`nia.ns.cloudflare.com`dns@cloudflare.com serial=2398658440

`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=1771291435

Same first word

linuxprotraining.com

DNS History

14 records (6 active, 8 former)

●NSnia.ns.cloudflare.com2026-03-18 → 2026-03-18 · 3 obs

○ 2017-05-22 17:44:36
● 2026-03-18 00:48:32
● 2026-03-18 10:06:22

○NSns1.no-ip.com2015-08-16 → 2017-05-22 · 4 obs

● 2015-08-16 09:12:30
● 2017-05-22 17:44:36
○ 2026-03-18 00:48:32
○ 2026-03-18 10:06:22

○NSns2.no-ip.com2015-08-16 → 2017-05-22 · 4 obs

● 2015-08-16 09:12:30
● 2017-05-22 17:44:36
○ 2026-03-18 00:48:32
○ 2026-03-18 10:06:22

○NSns3.no-ip.com2015-08-16 → 2017-05-22 · 4 obs

● 2015-08-16 09:12:30
● 2017-05-22 17:44:36
○ 2026-03-18 00:48:32
○ 2026-03-18 10:06:22

○NSns4.no-ip.com2015-08-16 → 2017-05-22 · 4 obs

● 2015-08-16 09:12:30
● 2017-05-22 17:44:36
○ 2026-03-18 00:48:32
○ 2026-03-18 10:06:22

○NSns5.no-ip.com2015-08-16 → 2017-05-22 · 4 obs

● 2015-08-16 09:12:30
● 2017-05-22 17:44:36
○ 2026-03-18 00:48:32
○ 2026-03-18 10:06:22

●NSruben.ns.cloudflare.com2026-03-18 → 2026-03-18 · 3 obs

○ 2017-05-22 17:44:36
● 2026-03-18 00:48:32
● 2026-03-18 10:06:22

○MXmail.linuxprotraining.com2015-08-16 → 2017-05-22 · 4 obs

● 2015-08-16 09:12:30
● 2017-05-22 17:44:36
○ 2026-03-18 00:48:32
○ 2026-03-18 10:06:22

●A104.21.15.2432026-03-18 → 2026-03-18 · 3 obs

○ 2017-05-22 17:44:36
● 2026-03-18 00:48:32
● 2026-03-18 10:06:22

●A172.67.209.482026-03-18 → 2026-03-18 · 3 obs

○ 2017-05-22 17:44:36
● 2026-03-18 00:48:32
● 2026-03-18 10:06:22

○A174.48.114.2122017-05-22 → 2017-05-22 · 4 obs

○ 2016-07-01 05:05:10
● 2017-05-22 17:44:36
○ 2026-03-18 00:48:32
○ 2026-03-18 10:06:22

●A2606:4700:3034::ac43:d1302026-03-18 → 2026-03-18 · 3 obs

○ 2017-05-22 17:44:36
● 2026-03-18 00:48:32
● 2026-03-18 10:06:22

●A2606:4700:3036::6815:ff32026-03-18 → 2026-03-18 · 3 obs

○ 2017-05-22 17:44:36
● 2026-03-18 00:48:32
● 2026-03-18 10:06:22

○A65.34.208.1152015-08-16 → 2016-07-01 · 4 obs

● 2015-08-16 09:12:30
● 2016-07-01 05:05:10
○ 2017-05-22 17:44:36
○ 2026-03-18 10:06:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net, j.gtld-servers.net...	-
linuxprotraining.com	nia.ns.cloudflare.com, ruben.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.192.210

NS records: nia.ns.cloudflare.com, ruben.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxprotraining.com (unsigned zone)

⏱️ Timing

Total: 177ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.209.48, 104.21.15.243`
AAAA	2	`2606:4700:3036::6815:ff3, 2606:4700:3034::ac43:d130`
NS	2	`nia.ns.cloudflare.com, ruben.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`nia.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (nia.ns.cloudflare.com, nia.ns.cloudflare.com, nia.ns.cloudflare.com...)

Analysis

IP Addresses

linuxprotraining.com points to four IP numbers: 2606:4700:3034::ac43:d130, 2606:4700:3036::6815:ff3, 104.21.15.243 and 172.67.209.48.

Other host names, for instance fitbook.com, (0x736578)ic.net, globaldocumentexpeditors.com, fndms.com.cdn.cloudflare.net and skyimager.net share IP numbers with linuxprotraining.com.

Name Servers

Delegation for linuxprotraining.com rests with two name servers, nia.ns.cloudflare.com and ruben.ns.cloudflare.com.

linuxprotraining.com shares the same name server setup as other domains, including boomigram.com, k-hirashima.com, xiaotizi.com, avischain.com and 7eus.com.

linuxprotraining.com at least partially shares name servers with other domains, for instance roocasino.online, winefrog.com, mtrip.eu, topnhacai.casino and forthefinish.net.

These name servers are commonly used with ivan.ns.cloudflare.com and gracie.ns.cloudflare.com.

Host names with six IP numbers: nia.ns.cloudflare.com points to: 2606:4700:50::adf5:3ad2, 2803:f800:50::6ca2:c0d2, 2a06:98c1:50::ac40:20d2, 108.162.192.210, 172.64.32.210 and 173.245.58.210. ruben.ns.cloudflare.com points to: 2606:4700:58::a29f:2c47, 2803:f800:50::6ca2:c347, 2a06:98c1:50::ac40:2347, 108.162.195.71, 162.159.44.71 and 172.64.35.71.

linuxprotraining.com - robtex.com