linuxworld.com - dns.ninja

`linuxworld.com`

DNSSEC	⚠️ Not signed
A	151.101.2.165^{🇺🇸 Fastly151.101.0.0/22}
A	151.101.66.165^{🇺🇸 Fastly151.101.64.0/22}
A	151.101.130.165^{🇺🇸 Fastly151.101.128.0/22}
A	151.101.194.165^{🇺🇸 Fastly151.101.192.0/22}
NS	`ns1.markmonitor.com` ⭐
		A	2620:10a:80a8::1^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.1^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns2.markmonitor.com`
		A	2001:67c:10b8::1^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns2.markmonitor.com`
		A	176.97.158.1^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.markmonitor.com`
NS	`ns3.markmonitor.com`
		A	2620:10a:80a9::1^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.1^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns4.markmonitor.com`
		A	2001:67c:1bc::1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns1.markmonitor.com`
		A	192.174.68.1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
			PTR	`ns1.markmonitor.com`
NS	`ns5.markmonitor.com` ⚠️ Not in parent delegation
		A	2620:10a:80a8::2^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.2^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns6.markmonitor.com` ⚠️ Not in parent delegation
		A	2001:67c:10b8::3^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns6.markmonitor.com`
		A	176.97.158.3^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns6.markmonitor.com`
NS	`ns7.markmonitor.com` ⚠️ Not in parent delegation
		A	2620:10a:80a9::2^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.2^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
MX	`1usb-smtp-inbound-1.mimecast.com` ⭐
MX	`usb-smtp-inbound-2.mimecast.com` ⭐
		A	170.10.150.242^{🇺🇸 Mimecast-NA170.10.150.0/24 Mimecast NA}
			PTR	`usb-smtp-delivery-2.mimecast.com`
		A	170.10.152.242^{🇺🇸 Mimecast-NA170.10.152.0/24 Mimecast NA}
			PTR	`usb-smtp-delivery-2.mimecast.com`
TXT	`0ed1fe018a65ecb426a97a4ae0ac05182a41b8ec65`
TXT	`_globalsign-domain-verification=rqIGg_61KD-PqlziH9JN4pCek7qy2j4BN0R1u_f_tw`
TXT	`v=spf1 include:spf.protection.outlook.com include:usb._netblocks.mimecast.co...`
TXT	`2+zs9FgoDQmJ9yWJZ1sHYrhYG/wPzJeFoh4vEk9+uidLCqOALk2WqBUVzXtj5khsX/DUzBK0FbyNZ...`
TXT	`MS=ms93232451`
SOA	`ns1.markmonitor.com`hostmaster@markmonitor.com 2025-06-08 #5

`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=1781333673

rank #49028 globally
rank #23754 in the tld
WOT: SAFE (90/100)
📈 Tranco rank: #195,039

Subdomains

www.linuxworld.com

Same first word

linuxworld.com

linuxworld.jp

linuxworld.hu

linuxworld.com.au

linuxworld.pl

linuxworld.com.pl

linuxworld.info

linuxworld.fr

linuxworld.cz

linuxworld.net

linuxworld.org

linuxworld.de

Similar names

worldlinux.com

DNS History

24 records (13 active, 11 former)

●NSns1.markmonitor.com2015-08-12 → 2026-06-13 · 2 obs

● 2015-08-12 03:33:56
● 2026-06-13 07:23:54

●NSns2.markmonitor.com2015-08-12 → 2026-06-13 · 2 obs

● 2015-08-12 03:33:56
● 2026-06-13 07:23:54

●NSns3.markmonitor.com2015-08-12 → 2026-06-13 · 2 obs

● 2015-08-12 03:33:56
● 2026-06-13 07:23:54

●NSns4.markmonitor.com2015-08-12 → 2026-06-13 · 2 obs

● 2015-08-12 03:33:56
● 2026-06-13 07:23:54

●NSns5.markmonitor.com2015-08-12 → 2026-06-13 · 2 obs

● 2015-08-12 03:33:56
● 2026-06-13 07:23:54

●NSns6.markmonitor.com2015-08-12 → 2026-06-13 · 2 obs

● 2015-08-12 03:33:56
● 2026-06-13 07:23:54

●NSns7.markmonitor.com2015-08-12 → 2026-06-13 · 2 obs

● 2015-08-12 03:33:56
● 2026-06-13 07:23:54

●MX1usb-smtp-inbound-1.mimecast.com2026-02-19 → 2026-06-13 · 3 obs

○ 2017-04-11 07:30:00
● 2026-02-19 18:25:28
● 2026-06-13 07:23:54

○MXalt1.aspmx.l.google.com2015-08-12 → 2016-07-26 · 4 obs

● 2015-08-12 03:33:56
● 2016-07-26 10:58:16
○ 2017-04-11 07:30:00
○ 2026-06-13 07:23:54

○MXalt2.aspmx.l.google.com2015-08-12 → 2016-07-26 · 4 obs

● 2015-08-12 03:33:56
● 2016-07-26 10:58:16
○ 2017-04-11 07:30:00
○ 2026-06-13 07:23:54

○MXalt3.aspmx.l.google.com2015-08-12 → 2016-07-26 · 4 obs

● 2015-08-12 03:33:56
● 2016-07-26 10:58:16
○ 2017-04-11 07:30:00
○ 2026-06-13 07:23:54

○MXalt4.aspmx.l.google.com2015-08-12 → 2016-07-26 · 4 obs

● 2015-08-12 03:33:56
● 2016-07-26 10:58:16
○ 2017-04-11 07:30:00
○ 2026-06-13 07:23:54

○MXaspmx.l.google.com2015-08-12 → 2016-07-26 · 4 obs

● 2015-08-12 03:33:56
● 2016-07-26 10:58:16
○ 2017-04-11 07:30:00
○ 2026-06-13 07:23:54

○MXlinuxworld-com.mail.protection.outlook.com2017-04-11 → 2017-04-11 · 4 obs

○ 2016-07-26 10:58:16
● 2017-04-11 07:30:00
○ 2026-02-19 18:25:28
○ 2026-06-13 07:23:54

●MXusb-smtp-inbound-2.mimecast.com2026-02-19 → 2026-06-13 · 3 obs

○ 2017-04-11 07:30:00
● 2026-02-19 18:25:28
● 2026-06-13 07:23:54

○A151.101.0.2302017-04-11 → 2017-04-11 · 4 obs

○ 2016-07-26 10:58:16
● 2017-04-11 07:30:00
○ 2026-02-19 18:25:28
○ 2026-06-13 07:23:54

○A151.101.128.2302017-04-11 → 2017-04-11 · 4 obs

○ 2016-07-26 10:58:16
● 2017-04-11 07:30:00
○ 2026-02-19 18:25:28
○ 2026-06-13 07:23:54

●A151.101.130.1652026-02-19 → 2026-06-13 · 3 obs

○ 2017-04-11 07:30:00
● 2026-02-19 18:25:28
● 2026-06-13 07:23:54

○A151.101.192.2302017-04-11 → 2017-04-11 · 4 obs

○ 2016-07-26 10:58:16
● 2017-04-11 07:30:00
○ 2026-02-19 18:25:28
○ 2026-06-13 07:23:54

●A151.101.194.1652026-02-19 → 2026-06-13 · 3 obs

○ 2017-04-11 07:30:00
● 2026-02-19 18:25:28
● 2026-06-13 07:23:54

●A151.101.2.1652026-02-19 → 2026-06-13 · 3 obs

○ 2017-04-11 07:30:00
● 2026-02-19 18:25:28
● 2026-06-13 07:23:54

○A151.101.64.2302017-04-11 → 2017-04-11 · 4 obs

○ 2016-07-26 10:58:16
● 2017-04-11 07:30:00
○ 2026-02-19 18:25:28
○ 2026-06-13 07:23:54

●A151.101.66.1652026-02-19 → 2026-06-13 · 3 obs

○ 2017-04-11 07:30:00
● 2026-02-19 18:25:28
● 2026-06-13 07:23:54

○A70.42.185.1022015-08-12 → 2016-07-26 · 4 obs

● 2015-08-12 03:33:56
● 2016-07-26 10:58:16
○ 2017-04-11 07:30:00
○ 2026-06-13 07:23:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net, m.gtld-servers.net...	-
linuxworld.com	ns1.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns2.markmonitor.com	8 records

✅ Authoritative Response

Server:176.97.158.1

NS records: ns1.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns2.markmonitor.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxworld.com (unsigned zone)

⏱️ Timing

Total: 297ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`151.101.2.165, 151.101.66.165...`
NS	7	`ns1.markmonitor.com, ns2.markmonitor.com...`
MX	2	`usb-smtp-inbound-2.mimecast.com (pri: 10, 1usb-smtp-inbound-1.mimecast.com (pri: 1`
TXT	5	`MS=ms93232451, 0ed1fe018a65ecb426a97a4ae0ac05182a41b8ec...`
SOA	1	`ns1.markmonitor.com hostmaster.markmonit`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns1.markmonitor.com, ns1.markmonitor.com, ns3.markmonitor.com...)

Analysis

Hierarchy

The domain www.linuxworld.com falls under the parent linuxworld.com.

IP Addresses

linuxworld.com points to four IP numbers: 151.101.2.165, 151.101.66.165, 151.101.130.165 and 151.101.194.165.

cio.nl, premier100.com, csoseminars.com plus two other host names have IP numbers in common with linuxworld.com.

Name Servers

linuxworld.com has 7 name servers — ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com and 4 others.

At least some of linuxworld.com's name servers are shared with other domains, for example undertowtrilogy.com, avendrainternational.net, reputationink.info and two more.

These name servers are often deployed together with the name servers ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.

Host names pointing to two IP addresses:

ns1.markmonitor.com resolves to 149.112.160.1 and 2620:10a:80a8::1.

ns2.markmonitor.com resolves to 176.97.158.1 and 2001:67c:10b8::1.

ns3.markmonitor.com resolves to 149.112.161.1 and 2620:10a:80a9::1.

ns4.markmonitor.com resolves to 192.174.68.1 and 2001:67c:1bc::1.

ns5.markmonitor.com resolves to 149.112.160.2 and 2620:10a:80a8::2.

ns6.markmonitor.com resolves to 176.97.158.3 and 2001:67c:10b8::3.

ns7.markmonitor.com resolves to 149.112.161.2 and 2620:10a:80a9::2.

Mail Servers

linuxworld.com uses two mail servers, 1usb-smtp-inbound-1.mimecast.com and usb-smtp-inbound-2.mimecast.com.

At least some of the mail servers used by linuxworld.com are shared with other domains: fourpointstallahasseedowntown.com, lancasterfinefoods.com, nalleykia.com and two others among them.

These mail servers tend to be used in conjunction with the mail servers usb-smtp-inbound-1.mimecast.com.

Host names pointing to two IP addresses:

usb-smtp-inbound-2.mimecast.com resolves to 170.10.150.242 and 170.10.152.242.