linuxsystemprogramming.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`linuxsystemprogramming.com`

DNSSEC	⚠️ Not signed
A	45.84.74.9^{🇩🇪 AS876745.84.74.0/23}
		PTR	`jira-p00179602.jambit.com`
NS	`curitiba.ns.porkbun.com` ⭐
		A	2400:cb00:2049:1::adf5:3a25^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	173.245.58.37^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`fortaleza.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:88c^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.8.140^{Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`maceio.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:bb4^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.11.180^{Cloudflare162.159.11.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`salvador.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:a96^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.10.150^{Cloudflare162.159.10.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4023:2009::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yuphxer-in-f26.1e100.net`
		A	192.178.164.26^{🇺🇸 Google192.178.164.0/24}
			PTR	`yuphxer-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4010:c22::1a^{🇫🇮 Google2a00:1450:4010::/48}
			PTR	`yulpptr-in-f26.1e100.net`
		A	172.253.152.27^{🇺🇸 Google172.253.0.0/16}
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2404:6800:4000:1027::1a^{🇮🇳 Google2404:6800::/32}
			PTR	`ncboms-in-f26.1e100.net`
		A	192.179.20.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncboms-in-f27.1e100.net`
SOA	`curitiba.ns.porkbun.com`dns@cloudflare.com serial=2399226238

`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=1792940086

Same first word

linuxsystemprogramming.online

linuxsystemprogramming.com

linuxsystemprogramming.ir

Previous names

Next names

DNS History

17 records (10 active, 7 former)

●NScuritiba.ns.porkbun.com2026-08-30 → 2026-10-25 · 3 obs

○ 2017-04-02 22:39:14
● 2026-08-30 04:49:56
● 2026-10-25 15:25:06

●NSfortaleza.ns.porkbun.com2026-08-30 → 2026-10-25 · 3 obs

○ 2017-04-02 22:39:14
● 2026-08-30 04:49:56
● 2026-10-25 15:25:06

●NSmaceio.ns.porkbun.com2026-08-30 → 2026-10-25 · 3 obs

○ 2017-04-02 22:39:14
● 2026-08-30 04:49:56
● 2026-10-25 15:25:06

○NSns09.domaincontrol.com2015-05-20 → 2017-04-02 · 4 obs

● 2015-05-20 15:06:14
● 2017-04-02 22:39:14
○ 2026-08-30 04:49:56
○ 2026-10-25 15:25:06

○NSns10.domaincontrol.com2015-05-20 → 2017-04-02 · 4 obs

● 2015-05-20 15:06:14
● 2017-04-02 22:39:14
○ 2026-08-30 04:49:56
○ 2026-10-25 15:25:06

○NSpark10.secureserver.net2017-04-02 → 2017-04-02 · 4 obs

○ 2015-05-20 15:06:14
● 2017-04-02 22:39:14
○ 2026-08-30 04:49:56
○ 2026-10-25 15:25:06

○NSpark9.secureserver.net2017-04-02 → 2017-04-02 · 4 obs

○ 2015-05-20 15:06:14
● 2017-04-02 22:39:14
○ 2026-08-30 04:49:56
○ 2026-10-25 15:25:06

●NSsalvador.ns.porkbun.com2026-08-30 → 2026-10-25 · 3 obs

○ 2017-04-02 22:39:14
● 2026-08-30 04:49:56
● 2026-10-25 15:25:06

●MXalt1.aspmx.l.google.com2026-08-30 → 2026-10-25 · 5 obs

○ 2017-04-02 22:39:14
● 2026-08-30 04:49:56
○ 2026-09-02 14:12:44
● 2026-09-03 05:18:40
● 2026-10-25 15:25:06

●MXalt2.aspmx.l.google.com2026-08-30 → 2026-10-25 · 5 obs

○ 2017-04-02 22:39:14
● 2026-08-30 04:49:56
○ 2026-09-02 14:12:44
● 2026-09-03 05:18:40
● 2026-10-25 15:25:06

●MXalt3.aspmx.l.google.com2026-08-30 → 2026-10-25 · 5 obs

○ 2017-04-02 22:39:14
● 2026-08-30 04:49:56
○ 2026-09-02 14:12:44
● 2026-09-03 05:18:40
● 2026-10-25 15:25:06

●MXalt4.aspmx.l.google.com2026-08-30 → 2026-10-25 · 5 obs

○ 2017-04-02 22:39:14
● 2026-08-30 04:49:56
○ 2026-09-02 14:12:44
● 2026-09-03 05:18:40
● 2026-10-25 15:25:06

●MXaspmx.l.google.com2026-08-30 → 2026-10-25 · 5 obs

○ 2017-04-02 22:39:14
● 2026-08-30 04:49:56
○ 2026-09-02 14:12:44
● 2026-09-03 05:18:40
● 2026-10-25 15:25:06

○MXmailstore1.secureserver.net2015-05-20 → 2017-04-02 · 4 obs

● 2015-05-20 15:06:14
● 2017-04-02 22:39:14
○ 2026-08-30 04:49:56
○ 2026-10-25 15:25:06

○MXsmtp.secureserver.net2015-05-20 → 2017-04-02 · 4 obs

● 2015-05-20 15:06:14
● 2017-04-02 22:39:14
○ 2026-08-30 04:49:56
○ 2026-10-25 15:25:06

○A213.131.240.1742015-05-20 → 2017-04-02 · 4 obs

● 2015-05-20 15:06:14
● 2017-04-02 22:39:14
○ 2026-08-30 04:49:56
○ 2026-10-25 15:25:06

●A45.84.74.92026-08-30 → 2026-10-25 · 5 obs

○ 2017-04-02 22:39:14
● 2026-08-30 04:49:56
○ 2026-09-02 14:12:44
● 2026-09-03 05:18:40
● 2026-10-25 15:25:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
linuxsystemprogramming.com	maceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com	8 records

✅ Authoritative Response

Server:162.159.10.150

NS records: maceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxsystemprogramming.com (unsigned zone)

⏱️ Timing

Total: 3030ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.84.74.9`
NS	4	`curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com...`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
SOA	1	`curitiba.ns.porkbun.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (maceio.ns.porkbun.com, maceio.ns.porkbun.com, salvador.ns.porkbun.com...)

Analysis

IP Addresses

linuxsystemprogramming.com points to a single IP number: 45.84.74.9.

Additional host names — michaelkerrisk.com, man7.org, linuxprogramminginterface.com and two others — share IP numbers with linuxsystemprogramming.com.

Name Servers

linuxsystemprogramming.com has four authoritative name servers: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

There is at least partial name server overlap between linuxsystemprogramming.com and other domains — lazard.io, sidjo.com, 430987.cc and two more among them.

All four hostnames — curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com — resolve to two IP numbers apiece: curitiba.ns.porkbun.com to 173.245.58.37 and 2400:cb00:2049:1::adf5:3a25; fortaleza.ns.porkbun.com to 162.159.8.140 and 2400:cb00:2049:1::a29f:88c; maceio.ns.porkbun.com to 162.159.11.180 and 2400:cb00:2049:1::a29f:bb4; salvador.ns.porkbun.com to 162.159.10.150 and 2400:cb00:2049:1::a29f:a96.

Mail Servers

Five mail servers handle linuxsystemprogramming.com: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

linuxsystemprogramming.com shares mail servers — at least in part — with other domains, including helpingwomenperiod.org, amybruecks.com, friendsofspeech.com and two others.

These mail servers are frequently paired with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com directs traffic to 192.178.164.26 and 2607:f8b0:4023:2009::1a.

alt1.aspmx.l.google.com directs traffic to 192.178.234.27 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com directs traffic to 172.253.152.27 and 2a00:1450:4010:c22::1a.

alt4.aspmx.l.google.com directs traffic to 192.179.20.27 and 2404:6800:4000:1027::1a.