`linuxcareers.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:ac97^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:3fe8^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.63.232^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.172.151^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elsa.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a6f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elsa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elsa.ns.cloudflare.com`
		A	108.162.192.111^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
		A	172.64.32.111^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
		A	173.245.58.111^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
NS	`hugh.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b75^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c175^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`hugh.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2175^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`hugh.ns.cloudflare.com`
		A	108.162.193.117^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
		A	172.64.33.117^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
		A	173.245.59.117^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
TXT	`brevo-code:b3b3b8d8f246242a95c7d5e621d5d680`
TXT	`google-site-verification=eJIkw7g6iPhdY05bQef9Mx1QiipvXneTLNfg5zl2OT4`
TXT	`protonmail-verification=fc1db2c0ab9a01198982ab8375bb0f29b21c2448`
TXT	`v=spf1 include:_spf.protonmail.ch`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.63.232, 172.67.172.151
		IPv6 hints	2606:4700:3030::ac43:ac97, 2606:4700:3033::6815:3fe8
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=194, name=cloudflare-ech.com
SOA	`elsa.ns.cloudflare.com`dns@cloudflare.com serial=2410527585

`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=1785328107

Same first word

linuxcareers.com

DNS History

23 records (8 active, 15 former)

●NSelsa.ns.cloudflare.com2026-07-29 → 2026-07-29 · 2 obs

○ 2017-09-29 05:50:36
● 2026-07-29 12:42:08

●NShugh.ns.cloudflare.com2026-07-29 → 2026-07-29 · 2 obs

○ 2017-09-29 05:50:36
● 2026-07-29 12:42:08

○NSns1.linuxcareers.com2015-06-04 → 2017-09-29 · 3 obs

● 2015-06-04 14:06:34
● 2017-09-29 05:50:36
○ 2026-07-29 12:42:08

○NSns1.thinpoint.com.au2015-06-04 → 2017-09-29 · 3 obs

● 2015-06-04 14:06:34
● 2017-09-29 05:50:36
○ 2026-07-29 12:42:08

○NSns2.thinpoint.com.au2015-06-04 → 2017-09-29 · 3 obs

● 2015-06-04 14:06:34
● 2017-09-29 05:50:36
○ 2026-07-29 12:42:08

○MXalt1.aspmx.l.google.com2015-06-04 → 2017-09-29 · 3 obs

● 2015-06-04 14:06:34
● 2017-09-29 05:50:36
○ 2026-07-29 12:42:08

○MXalt2.aspmx.l.google.com2015-06-04 → 2017-09-29 · 3 obs

● 2015-06-04 14:06:34
● 2017-09-29 05:50:36
○ 2026-07-29 12:42:08

○MXaspmx.l.google.com2015-06-04 → 2017-09-29 · 3 obs

● 2015-06-04 14:06:34
● 2017-09-29 05:50:36
○ 2026-07-29 12:42:08

○MXaspmx2.googlemail.com2015-06-04 → 2017-09-29 · 3 obs

● 2015-06-04 14:06:34
● 2017-09-29 05:50:36
○ 2026-07-29 12:42:08

○MXaspmx3.googlemail.com2015-06-04 → 2017-09-29 · 3 obs

● 2015-06-04 14:06:34
● 2017-09-29 05:50:36
○ 2026-07-29 12:42:08

●MXmail.protonmail.ch2026-07-29 → 2026-07-29 · 2 obs

○ 2017-09-29 05:50:36
● 2026-07-29 12:42:08

●MXmailsec.protonmail.ch2026-07-29 → 2026-07-29 · 2 obs

○ 2017-09-29 05:50:36
● 2026-07-29 12:42:08

●A104.21.63.2322026-07-29 → 2026-07-29 · 2 obs

○ 2017-09-29 05:50:36
● 2026-07-29 12:42:08

○A107.21.213.1412015-06-04 → 2016-01-21 · 4 obs

● 2015-06-04 14:06:34
● 2016-01-21 16:32:22
○ 2016-04-16 08:38:26
○ 2026-07-29 12:42:08

○A138.197.50.1122017-09-29 → 2017-09-29 · 3 obs

○ 2016-12-24 01:13:38
● 2017-09-29 05:50:36
○ 2026-07-29 12:42:08

●A172.67.172.1512026-07-29 → 2026-07-29 · 2 obs

○ 2017-09-29 05:50:36
● 2026-07-29 12:42:08

○A188.114.96.02026-07-29 → 2026-07-29 · 1 obs

○ 2026-07-29 12:42:08

○A188.114.97.02026-07-29 → 2026-07-29 · 1 obs

○ 2026-07-29 12:42:08

●A2606:4700:3030::ac43:ac972026-07-29 → 2026-07-29 · 2 obs

○ 2017-09-29 05:50:36
● 2026-07-29 12:42:08

●A2606:4700:3033::6815:3fe82026-07-29 → 2026-07-29 · 2 obs

○ 2017-09-29 05:50:36
● 2026-07-29 12:42:08

○A2a06:98c1:3120::2026-07-29 → 2026-07-29 · 1 obs

○ 2026-07-29 12:42:08

○A2a06:98c1:3121::2026-07-29 → 2026-07-29 · 1 obs

○ 2026-07-29 12:42:08

○A52.70.44.1322016-04-16 → 2016-12-24 · 5 obs

○ 2016-01-21 16:32:22
● 2016-04-16 08:38:26
● 2016-12-24 01:13:38
○ 2017-09-29 05:50:36
○ 2026-07-29 12:42:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net, a.gtld-servers.net...	-
linuxcareers.com	elsa.ns.cloudflare.com, hugh.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.117

NS records: elsa.ns.cloudflare.com, hugh.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxcareers.com (unsigned zone)

⏱️ Timing

Total: 168ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.172.151, 104.21.63.232`
AAAA	2	`2606:4700:3033::6815:3fe8, 2606:4700:3030::ac43:ac97`
NS	2	`elsa.ns.cloudflare.com, hugh.ns.cloudflare.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)`
TXT	4	`brevo-code:b3b3b8d8f246242a95c7d5e621d5d, google-site-verification=eJIkw7g6iPhdY05...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`elsa.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

linuxcareers.com resolves to four IP addresses: 104.21.63.232, 172.67.172.151, 2606:4700:3030::ac43:ac97 and 2606:4700:3033::6815:3fe8.

Additional host names — kekoapp.com, thebathroomfactory.co.nz, akademikhukuk.org and two others — share IP numbers with linuxcareers.com.

Name Servers

DNS delegation for linuxcareers.com points to two name servers: elsa.ns.cloudflare.com and hugh.ns.cloudflare.com.

linuxcareers.com shares its name server setup with other domains, including araznews.ir, berryscoaches.co.uk, gowamma.com and two others.

linuxcareers.com has at least partial name server overlap with other domains, such as ame788.com, owwo.it, alphayriver.info and two others.

It is common to find these name servers paired with the name servers trace.ns.cloudflare.com.

Host names with 6 IP numbers:

elsa.ns.cloudflare.com has IP addresses 108.162.192.111, 172.64.32.111 and 173.245.58.111, plus 3 other.

hugh.ns.cloudflare.com has IP addresses 108.162.193.117, 172.64.33.117 and 173.245.59.117, plus 3 other.

Mail Servers

linuxcareers.com has two mail servers: mail.protonmail.ch and mailsec.protonmail.ch.

linuxcareers.com shares the same mail server setup as other domains, including dahowe.com, watuti.com, privado.me and two others.

linuxcareers.com shares mail servers — at least in part — with other domains, including baileysbk.com, ip12.net, atomlib.com and two others.

mail.protonmail.ch and mailsec.protonmail.ch each have three IP addresses — mail.protonmail.ch directs to 176.119.200.128, 185.70.42.128 and 185.205.70.128; mailsec.protonmail.ch directs to 176.119.200.129, 185.70.42.129 and 185.205.70.129.

linuxcareers.com - robtex.com