`linuxworldsummit.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:47e1^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:9663^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.71.225^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.150.99^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jake.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b7a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jake.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c17a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jake.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:217a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jake.ns.cloudflare.com`
		A	108.162.193.122^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jake.ns.cloudflare.com`
		A	172.64.33.122^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jake.ns.cloudflare.com`
		A	173.245.59.122^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jake.ns.cloudflare.com`
NS	`uma.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a92^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`uma.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c092^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`uma.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2092^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`uma.ns.cloudflare.com`
		A	108.162.192.146^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`uma.ns.cloudflare.com`
		A	172.64.32.146^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`uma.ns.cloudflare.com`
		A	173.245.58.146^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`uma.ns.cloudflare.com`
TXT	`v=spf1 a mx include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.71.225, 172.67.150.99
		IPv6	2606:4700:3030::6815:47e1, 2606:4700:3037::ac43:9663
SOA	`jake.ns.cloudflare.com`dns@cloudflare.com serial=2398562140

`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=1774673307

WOT: SAFE (62/100)

Same first word

linuxworldsummit.com

DNS History

22 records (6 active, 16 former)

●NSjake.ns.cloudflare.com2026-02-19 → 2026-03-28 · 3 obs

○ 2017-04-22 18:35:22
● 2026-02-19 02:19:44
● 2026-03-28 05:15:46

○NSns1.markmonitor.com2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 00:50:44
○ 2015-05-12 07:55:26
○ 2026-03-28 05:15:46

○NSns1.namebrightdns.com2017-04-22 → 2017-04-22 · 4 obs

○ 2016-09-25 20:13:50
● 2017-04-22 18:35:22
○ 2026-02-19 02:19:44
○ 2026-03-28 05:15:46

○NSns1.sedoparking.com2015-05-12 → 2016-09-25 · 5 obs

○ 2008-03-18 00:50:44
● 2015-05-12 07:55:26
● 2016-09-25 20:13:50
○ 2017-04-22 18:35:22
○ 2026-03-28 05:15:46

○NSns2.namebrightdns.com2017-04-22 → 2017-04-22 · 4 obs

○ 2016-09-25 20:13:50
● 2017-04-22 18:35:22
○ 2026-02-19 02:19:44
○ 2026-03-28 05:15:46

○NSns2.sedoparking.com2015-05-12 → 2016-09-25 · 5 obs

○ 2008-03-18 00:50:44
● 2015-05-12 07:55:26
● 2016-09-25 20:13:50
○ 2017-04-22 18:35:22
○ 2026-03-28 05:15:46

○NSns3.markmonitor.com2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 00:50:44
○ 2015-05-12 07:55:26
○ 2026-03-28 05:15:46

○NSns4.markmonitor.com2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 00:50:44
○ 2015-05-12 07:55:26
○ 2026-03-28 05:15:46

○NSns5.markmonitor.com2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 00:50:44
○ 2015-05-12 07:55:26
○ 2026-03-28 05:15:46

●NSuma.ns.cloudflare.com2026-02-19 → 2026-03-28 · 3 obs

○ 2017-04-22 18:35:22
● 2026-02-19 02:19:44
● 2026-03-28 05:15:46

○MXlocalhost2016-09-25 → 2016-09-25 · 4 obs

○ 2016-04-08 15:48:56
● 2016-09-25 20:13:50
○ 2017-04-22 18:35:22
○ 2026-03-28 05:15:46

○MXmail.b-io.co2015-05-12 → 2015-05-12 · 4 obs

○ 2008-03-18 00:50:44
● 2015-05-12 07:55:26
○ 2015-10-17 19:23:44
○ 2026-03-28 05:15:46

○MXmail.nickstel.com2015-10-17 → 2016-04-08 · 5 obs

○ 2008-03-18 00:50:44
● 2015-10-17 19:23:44
● 2016-04-08 15:48:56
○ 2016-09-25 20:13:50
○ 2026-03-28 05:15:46

●A104.21.71.2252026-02-19 → 2026-03-28 · 3 obs

○ 2017-04-22 18:35:22
● 2026-02-19 02:19:44
● 2026-03-28 05:15:46

●A172.67.150.992026-02-19 → 2026-03-28 · 3 obs

○ 2017-04-22 18:35:22
● 2026-02-19 02:19:44
● 2026-03-28 05:15:46

●A2606:4700:3030::6815:47e12026-02-19 → 2026-03-28 · 3 obs

○ 2017-04-22 18:35:22
● 2026-02-19 02:19:44
● 2026-03-28 05:15:46

●A2606:4700:3037::ac43:96632026-02-19 → 2026-03-28 · 3 obs

○ 2017-04-22 18:35:22
● 2026-02-19 02:19:44
● 2026-03-28 05:15:46

○A52.0.184.2112017-04-22 → 2017-04-22 · 4 obs

○ 2016-09-25 20:13:50
● 2017-04-22 18:35:22
○ 2026-02-19 02:19:44
○ 2026-03-28 05:15:46

○A54.164.249.2552017-04-22 → 2017-04-22 · 4 obs

○ 2016-09-25 20:13:50
● 2017-04-22 18:35:22
○ 2026-02-19 02:19:44
○ 2026-03-28 05:15:46

○A63.211.161.72008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 00:50:44
○ 2015-05-12 07:55:26
○ 2026-03-28 05:15:46

○A72.52.4.912015-05-12 → 2016-09-25 · 5 obs

○ 2008-03-18 00:50:44
● 2015-05-12 07:55:26
● 2016-09-25 20:13:50
○ 2017-04-22 18:35:22
○ 2026-03-28 05:15:46

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-04-22 → 2017-04-22 · 3 obs

● 2017-04-22 18:35:22
○ 2026-02-19 02:19:44
○ 2026-03-28 05:15:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
linuxworldsummit.com	jake.ns.cloudflare.com, uma.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.122

NS records: jake.ns.cloudflare.com, uma.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxworldsummit.com (unsigned zone)

⏱️ Timing

Total: 93ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.71.225, 172.67.150.99`
AAAA	2	`2606:4700:3037::ac43:9663, 2606:4700:3030::6815:47e1`
NS	2	`jake.ns.cloudflare.com, uma.ns.cloudflare.com`
TXT	1	`v=spf1 a mx include:spf.protection.outlo`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jake.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

Four IP numbers are pointed to by linuxworldsummit.com: 2606:4700:3030::6815:47e1, 2606:4700:3037::ac43:9663, 104.21.71.225 and 172.67.150.99.

other host names including bestessayhere.com, beaumontdentalcare.com, rtp55hh.com, u888com.biz and www.p7av.com share IP numbers with linuxworldsummit.com.

Name Servers

linuxworldsummit.com is delegated to two name servers jake.ns.cloudflare.com and uma.ns.cloudflare.com.

linuxworldsummit.com shares the same name server setup as other domains, for instance longbeachshow.com, psacard.com, swissdeck.nl, addic.dk and xslotx.com.

linuxworldsummit.com at least partially shares name servers with other domains, for instance brisbanevehiclebrokers.com.au, soksibuk.xyz, greatoldcartitle.com, 20190508.com and beautyharmonylife.com.

These name servers are commonly used with lily.ns.cloudflare.com, kim.ns.cloudflare.com and brianna.ns.cloudflare.com.

Host names with six IP numbers:

Host name jake.ns.cloudflare.com points to: 2606:4700:58::adf5:3b7a, 2803:f800:50::6ca2:c17a, 2a06:98c1:50::ac40:217a, 108.162.193.122, 172.64.33.122 and 173.245.59.122.

Host name uma.ns.cloudflare.com points to: 2606:4700:50::adf5:3a92, 2803:f800:50::6ca2:c092, 2a06:98c1:50::ac40:2092, 108.162.192.146, 172.64.32.146 and 173.245.58.146.

linuxworldsummit.com - robtex.com