`linuxfieldnotes.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:1bbf^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:8f77^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.27.191^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.143.119^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dave.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b6d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c16d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dave.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:216d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dave.ns.cloudflare.com`
		A	108.162.193.109^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
		A	172.64.33.109^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
		A	173.245.59.109^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
NS	`lisa.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a83^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lisa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c083^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lisa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2083^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lisa.ns.cloudflare.com`
		A	108.162.192.131^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lisa.ns.cloudflare.com`
		A	172.64.32.131^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lisa.ns.cloudflare.com`
		A	173.245.58.131^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lisa.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.27.191, 172.67.143.119
		IPv6	2606:4700:3035::6815:1bbf, 2606:4700:3036::ac43:8f77
SOA	`dave.ns.cloudflare.com`dns@cloudflare.com serial=2399150212

`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=1774540547

Subdomains

mail.linuxfieldnotes.com

Same first word

linuxfieldnotes.com

DNS History

13 records (6 active, 7 former)

●NSdave.ns.cloudflare.com2015-07-07 → 2026-03-26 · 2 obs

● 2015-07-07 14:55:28
● 2026-03-26 16:13:14

●NSlisa.ns.cloudflare.com2015-07-07 → 2026-03-26 · 2 obs

● 2015-07-07 14:55:28
● 2026-03-26 16:13:14

○MXmail.linuxfieldnotes.com2015-07-07 → 2016-03-14 · 4 obs

● 2015-07-07 14:55:28
● 2016-03-14 16:38:08
○ 2016-07-13 16:50:44
○ 2026-03-26 16:13:14

●A104.21.27.1912026-02-15 → 2026-03-26 · 6 obs

○ 2016-07-13 16:50:44
● 2026-02-15 02:10:28
● 2026-02-20 09:26:00
○ 2026-03-06 08:19:12
○ 2026-03-07 11:08:54
● 2026-03-26 16:13:14

○A104.24.110.332015-07-07 → 2016-03-14 · 4 obs

● 2015-07-07 14:55:28
● 2016-03-14 16:38:08
○ 2016-07-13 16:50:44
○ 2026-03-26 16:13:14

○A104.24.111.332015-07-07 → 2016-03-14 · 4 obs

● 2015-07-07 14:55:28
● 2016-03-14 16:38:08
○ 2016-07-13 16:50:44
○ 2026-03-26 16:13:14

●A172.67.143.1192026-02-15 → 2026-03-26 · 6 obs

○ 2016-07-13 16:50:44
● 2026-02-15 02:10:28
● 2026-02-20 09:26:00
○ 2026-03-06 08:19:12
○ 2026-03-07 11:08:54
● 2026-03-26 16:13:14

○A188.114.96.02026-03-06 → 2026-03-07 · 4 obs

○ 2026-02-20 09:26:00
● 2026-03-06 08:19:12
● 2026-03-07 11:08:54
○ 2026-03-26 16:13:14

○A188.114.97.02026-03-06 → 2026-03-07 · 4 obs

○ 2026-02-20 09:26:00
● 2026-03-06 08:19:12
● 2026-03-07 11:08:54
○ 2026-03-26 16:13:14

●A2606:4700:3035::6815:1bbf2026-02-15 → 2026-03-26 · 6 obs

○ 2016-07-13 16:50:44
● 2026-02-15 02:10:28
● 2026-02-20 09:26:00
○ 2026-03-06 08:19:12
○ 2026-03-07 11:08:54
● 2026-03-26 16:13:14

●A2606:4700:3036::ac43:8f772026-02-15 → 2026-03-26 · 6 obs

○ 2016-07-13 16:50:44
● 2026-02-15 02:10:28
● 2026-02-20 09:26:00
○ 2026-03-06 08:19:12
○ 2026-03-07 11:08:54
● 2026-03-26 16:13:14

○A2a06:98c1:3120::2026-03-06 → 2026-03-07 · 4 obs

○ 2026-02-20 09:26:00
● 2026-03-06 08:19:12
● 2026-03-07 11:08:54
○ 2026-03-26 16:13:14

○A2a06:98c1:3121::2026-03-06 → 2026-03-07 · 4 obs

○ 2026-02-20 09:26:00
● 2026-03-06 08:19:12
● 2026-03-07 11:08:54
○ 2026-03-26 16:13:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
linuxfieldnotes.com	dave.ns.cloudflare.com, lisa.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.109

NS records: dave.ns.cloudflare.com, lisa.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxfieldnotes.com (unsigned zone)

⏱️ Timing

Total: 243ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.27.191, 172.67.143.119`
AAAA	2	`2606:4700:3035::6815:1bbf, 2606:4700:3036::ac43:8f77`
NS	2	`dave.ns.cloudflare.com, lisa.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dave.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

mail.linuxfieldnotes.com is a child of linuxfieldnotes.com.

IP Addresses

linuxfieldnotes.com refers to four IP numbers: 2606:4700:3035::6815:1bbf, 2606:4700:3036::ac43:8f77, 104.21.27.191 and 172.67.143.119.

Other host names, for instance archnesiti.com, choice-cloudflare-qr-worker.dev-vladimir.workers.dev, best-pest-control-near-me.com, issbank.com and anyaella.n61nrfowku.workers.dev share IP numbers with linuxfieldnotes.com.

Name Servers

linuxfieldnotes.com's delegation uses two name servers: dave.ns.cloudflare.com and lisa.ns.cloudflare.com.

linuxfieldnotes.com uses the same name server setup as other domains, such as ollc.net, performancecaraudio.com.au, tracknode.com, tomas.cat and ungd.cn.

linuxfieldnotes.com at least partially shares name servers with other domains, including dejialiansaiguanfangwangzhan.net.cn, bakermd.com, moneytreestudio.com, mobidrive.com and 8824158.com.

These name servers are commonly used with mimi.ns.cloudflare.com, ken.ns.cloudflare.com and dana.ns.cloudflare.com.

Host names with six IP numbers:

dave.ns.cloudflare.com points to 2606:4700:58::adf5:3b6d, 2803:f800:50::6ca2:c16d, 2a06:98c1:50::ac40:216d, 108.162.193.109, 172.64.33.109 and 173.245.59.109.

lisa.ns.cloudflare.com points to 2606:4700:50::adf5:3a83, 2803:f800:50::6ca2:c083, 2a06:98c1:50::ac40:2083, 108.162.192.131, 172.64.32.131 and 173.245.58.131.

linuxfieldnotes.com - robtex.com