`linuxbear.com`

DNSSEC	⚠️ Not signed
A	45.41.44.2^{🇺🇸 AS39950245.41.44.0/24 10 Creekview Dr SE Buffalo NY 14202 United States}
		PTR	`alpha-whm.valuehosted.com`
NS	`alex.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b64^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alex.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c164^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alex.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2164^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alex.ns.cloudflare.com`
		A	108.162.193.100^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alex.ns.cloudflare.com`
		A	172.64.33.100^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alex.ns.cloudflare.com`
		A	173.245.59.100^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alex.ns.cloudflare.com`
NS	`isla.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a77^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c077^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`isla.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2077^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`isla.ns.cloudflare.com`
		A	108.162.192.119^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
		A	172.64.32.119^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
		A	173.245.58.119^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
MX	`smtp.linuxbear.com` ⭐
		A	45.41.44.2^{🇺🇸 AS39950245.41.44.0/24 10 Creekview Dr SE Buffalo NY 14202 United States}
			PTR	`alpha-whm.valuehosted.com`
TXT	`google-site-verification=zXavif6yX51Xaw2-Rut46HQqL5WONTQCxCmRpA_t9Ok`
TXT	`v=spf1 +ip4:45.41.44.200 -all`
SOA	`alex.ns.cloudflare.com`dns@cloudflare.com serial=2402088317

`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=1778590481

Previously MX for

mail.linuxbear.com

Subdomains

mail.linuxbear.com

smtp.linuxbear.com

Same first word

linuxbear.com

Similar names

brineluxa.com

alexbruni.ru

luxebrain.com

xunleibar.com

alexrubin.net

DNS History

16 records (4 active, 12 former)

●NSalex.ns.cloudflare.com2026-02-15 → 2026-05-12 · 3 obs

○ 2016-09-08 18:13:40
● 2026-02-15 00:52:20
● 2026-05-12 13:24:08

○NSalina.ns.cloudflare.com2015-12-19 → 2016-09-08 · 5 obs

○ 2015-10-04 03:27:04
● 2015-12-19 01:15:56
● 2016-09-08 18:13:40
○ 2026-02-15 00:52:20
○ 2026-05-12 13:24:08

●NSisla.ns.cloudflare.com2026-02-15 → 2026-05-12 · 3 obs

○ 2016-09-08 18:13:40
● 2026-02-15 00:52:20
● 2026-05-12 13:24:08

○NSns1.linuxbear.com2015-10-04 → 2015-10-04 · 3 obs

● 2015-10-04 03:27:04
○ 2015-12-19 01:15:56
○ 2026-05-12 13:24:08

○NSns2.linuxbear.com2015-10-04 → 2015-10-04 · 3 obs

● 2015-10-04 03:27:04
○ 2015-12-19 01:15:56
○ 2026-05-12 13:24:08

○NSs1.linuxbear.com2015-10-04 → 2015-10-04 · 3 obs

● 2015-10-04 03:27:04
○ 2015-12-19 01:15:56
○ 2026-05-12 13:24:08

○NStim.ns.cloudflare.com2015-12-19 → 2016-09-08 · 5 obs

○ 2015-10-04 03:27:04
● 2015-12-19 01:15:56
● 2016-09-08 18:13:40
○ 2026-02-15 00:52:20
○ 2026-05-12 13:24:08

○MXmail.linuxbear.com2015-10-04 → 2015-10-04 · 3 obs

● 2015-10-04 03:27:04
○ 2015-12-19 01:15:56
○ 2026-05-12 13:24:08

○MXmx.zoho.com2015-12-19 → 2016-09-08 · 5 obs

○ 2015-10-04 03:27:04
● 2015-12-19 01:15:56
● 2016-09-08 18:13:40
○ 2026-02-15 00:52:20
○ 2026-05-12 13:24:08

○MXmx2.zoho.com2015-12-19 → 2016-09-08 · 5 obs

○ 2015-10-04 03:27:04
● 2015-12-19 01:15:56
● 2016-09-08 18:13:40
○ 2026-02-15 00:52:20
○ 2026-05-12 13:24:08

●MXsmtp.linuxbear.com2026-02-15 → 2026-05-12 · 3 obs

○ 2016-09-08 18:13:40
● 2026-02-15 00:52:20
● 2026-05-12 13:24:08

○A104.236.101.1072016-09-08 → 2016-09-08 · 4 obs

○ 2016-03-22 05:13:20
● 2016-09-08 18:13:40
○ 2026-02-15 00:52:20
○ 2026-05-12 13:24:08

○A198.50.193.2012015-12-19 → 2015-12-19 · 4 obs

○ 2015-10-04 03:27:04
● 2015-12-19 01:15:56
○ 2016-03-22 05:13:20
○ 2026-05-12 13:24:08

○A198.50.234.1892016-03-22 → 2016-03-22 · 4 obs

○ 2015-12-19 01:15:56
● 2016-03-22 05:13:20
○ 2016-09-08 18:13:40
○ 2026-05-12 13:24:08

●A45.41.44.22026-02-15 → 2026-05-12 · 3 obs

○ 2016-09-08 18:13:40
● 2026-02-15 00:52:20
● 2026-05-12 13:24:08

○A69.30.199.1542015-10-04 → 2015-10-04 · 3 obs

● 2015-10-04 03:27:04
○ 2015-12-19 01:15:56
○ 2026-05-12 13:24:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, h.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
linuxbear.com	alex.ns.cloudflare.com, isla.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.100

NS records: alex.ns.cloudflare.com, isla.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxbear.com (unsigned zone)

⏱️ Timing

Total: 445ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.41.44.2`
NS	2	`alex.ns.cloudflare.com, isla.ns.cloudflare.com`
MX	1	`smtp.linuxbear.com (pri: 0)`
TXT	2	`google-site-verification=zXavif6yX51Xaw2, v=spf1 +ip4:45.41.44.200 -all`
SOA	1	`alex.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

linuxbear.com is parent of mail.linuxbear.com and smtp.linuxbear.com.

IP Addresses

linuxbear.com points to a single IP: 45.41.44.2.

Other host names, for instance creominddesigns.com, upload.sc, stubbornsystems.com, rocketshippers.net and discreetsoft.com share IP numbers with linuxbear.com.

Name Servers

linuxbear.com's delegation is to two name servers alex.ns.cloudflare.com and isla.ns.cloudflare.com.

linuxbear.com shares the same name server configuration as other domains, such as debinnenvaartkrant.nl, radawards.com, cerar.info, bandenportaal.nl and personneltodayawards.com.

linuxbear.com at least partially shares its name servers with other domains, for instance spacemail.mx, 6117z.com, imaada.my, boardroomspot.net and bikesburg.ru.

These name servers are often used together with the name servers howard.ns.cloudflare.com.

Host names with six IP numbers:

alex.ns.cloudflare.com points to: 2606:4700:58::adf5:3b64, 2803:f800:50::6ca2:c164, 2a06:98c1:50::ac40:2164, 108.162.193.100, 172.64.33.100 and 173.245.59.100.

isla.ns.cloudflare.com points to: 2606:4700:50::adf5:3a77, 2803:f800:50::6ca2:c077, 2a06:98c1:50::ac40:2077, 108.162.192.119, 172.64.32.119 and 173.245.58.119.

Mail Servers

linuxbear.com is served by a single mail server, smtp.linuxbear.com.

smtp.linuxbear.com points to IP number 45.41.44.2.

linuxbear.com - robtex.com

linuxbear.com

com

Previously MX for

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`linuxbear.com`

`com`