linuxmasteryguide.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`linuxmasteryguide.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::ac43:b3f2^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:1fcc^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.31.204^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.179.242^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dolly.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a62^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dolly.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c062^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dolly.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2062^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dolly.ns.cloudflare.com`
		A	108.162.192.98^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dolly.ns.cloudflare.com`
		A	172.64.32.98^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dolly.ns.cloudflare.com`
		A	173.245.58.98^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dolly.ns.cloudflare.com`
NS	`harvey.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c98^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harvey.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c398^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harvey.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2398^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harvey.ns.cloudflare.com`
		A	108.162.195.152^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harvey.ns.cloudflare.com`
		A	162.159.44.152^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harvey.ns.cloudflare.com`
		A	172.64.35.152^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harvey.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.31.204, 172.67.179.242
		IPv6 hints	2606:4700:3036::ac43:b3f2, 2606:4700:3037::6815:1fcc
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=227, name=cloudflare-ech.com
SOA	`dolly.ns.cloudflare.com`dns@cloudflare.com serial=2415741622

`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=1790562329

Same first word

linuxmasteryguide.com

Previous names

Next names

DNS History

10 records (6 active, 4 former)

●NSdolly.ns.cloudflare.com2026-09-26 → 2026-09-28 · 2 obs

● 2026-09-26 05:30:34
● 2026-09-28 02:45:56

●NSharvey.ns.cloudflare.com2026-09-26 → 2026-09-28 · 2 obs

● 2026-09-26 05:30:34
● 2026-09-28 02:45:56

●A104.21.31.2042026-09-26 → 2026-09-28 · 3 obs

○ 2026-09-26 05:30:34
● 2026-09-26 23:42:46
● 2026-09-28 02:45:56

●A172.67.179.2422026-09-26 → 2026-09-28 · 3 obs

○ 2026-09-26 05:30:34
● 2026-09-26 23:42:46
● 2026-09-28 02:45:56

○A188.114.96.02026-09-26 → 2026-09-26 · 3 obs

● 2026-09-26 05:30:34
○ 2026-09-26 23:42:46
○ 2026-09-28 02:45:56

○A188.114.97.02026-09-26 → 2026-09-26 · 3 obs

● 2026-09-26 05:30:34
○ 2026-09-26 23:42:46
○ 2026-09-28 02:45:56

●A2606:4700:3036::ac43:b3f22026-09-26 → 2026-09-28 · 3 obs

○ 2026-09-26 05:30:34
● 2026-09-26 23:42:46
● 2026-09-28 02:45:56

●A2606:4700:3037::6815:1fcc2026-09-26 → 2026-09-28 · 3 obs

○ 2026-09-26 05:30:34
● 2026-09-26 23:42:46
● 2026-09-28 02:45:56

○A2a06:98c1:3120::2026-09-26 → 2026-09-26 · 3 obs

● 2026-09-26 05:30:34
○ 2026-09-26 23:42:46
○ 2026-09-28 02:45:56

○A2a06:98c1:3121::2026-09-26 → 2026-09-26 · 3 obs

● 2026-09-26 05:30:34
○ 2026-09-26 23:42:46
○ 2026-09-28 02:45:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net, f.gtld-servers.net...	-
linuxmasteryguide.com	dolly.ns.cloudflare.com, harvey.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.152

NS records: dolly.ns.cloudflare.com, harvey.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxmasteryguide.com (unsigned zone)

⏱️ Timing

Total: 241ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.179.242, 104.21.31.204`
AAAA	2	`2606:4700:3037::6815:1fcc, 2606:4700:3036::ac43:b3f2`
NS	2	`dolly.ns.cloudflare.com, harvey.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dolly.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

linuxmasteryguide.com points to the four IP addresses 104.21.31.204, 172.67.179.242, 2606:4700:3036::ac43:b3f2 and 2606:4700:3037::6815:1fcc.

Two other host names, along with www.familypendants.co.il, hifrom.app and rehllp.cc, also share IP numbers with linuxmasteryguide.com.

Name Servers

DNS delegation for linuxmasteryguide.com points to two name servers: dolly.ns.cloudflare.com and harvey.ns.cloudflare.com.

linuxmasteryguide.com shares its NS records with other domains, for example abox103.com, iearningapp6213.pages.dev, nap02.xyz and two others.

The name servers of linuxmasteryguide.com overlap at least partially with those of other domains — among them skysportsgame.com, 100xtoolkit.com, vvspltech.com and two more.

These name servers commonly appear alongside the name servers fattouche.ns.cloudflare.com and dom.ns.cloudflare.com.

DNS names with 6 IP addresses:

dolly.ns.cloudflare.com has IP addresses 108.162.192.98, 172.64.32.98 and 173.245.58.98, plus 3 other.

harvey.ns.cloudflare.com has IP addresses 108.162.195.152, 162.159.44.152 and 172.64.35.152, plus 3 other.