masteringlinux.in - dns.ninja

`masteringlinux.in`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:9d^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:9742^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.0.157^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.151.66^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bob.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b68^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c168^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bob.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2168^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bob.ns.cloudflare.com`
		A	108.162.193.104^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	172.64.33.104^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	173.245.59.104^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
NS	`lara.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a80^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c080^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2080^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lara.ns.cloudflare.com`
		A	108.162.192.128^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lara.ns.cloudflare.com`
		A	172.64.32.128^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lara.ns.cloudflare.com`
		A	173.245.58.128^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lara.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	172.253.63.26^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`v=spf1 +a +mx +ip4:192.46.208.134 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.0.157, 172.67.151.66
		IPv6 hints	2606:4700:3034::6815:9d, 2606:4700:3034::ac43:9742
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=33, name=cloudflare-ech.com
SOA	`bob.ns.cloudflare.com`dns@cloudflare.com serial=2411124577

`in`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns.trs-dns.com` ⭐
	NS	`ns1.registry.in`
	NS	`ns2.registry.in`
	NS	`ns3.registry.in`
	NS	`ns4.registry.in`
	SOA	`ns.trs-dns.com`trs-ops@tucows.com serial=1786551350

Previously MX for

masteringlinux.in

Subdomains

www.masteringlinux.in

Same first word

masteringlinux.in

masteringlinux.com

DNS History

24 records (11 active, 13 former)

○NSali.ns.cloudflare.com2020-02-04 → 2020-02-08 · 5 obs

○ 2017-07-09 12:19:48
● 2020-02-04 10:14:36
● 2020-02-08 18:58:54
○ 2026-02-14 23:05:06
○ 2026-08-12 16:19:36

●NSbob.ns.cloudflare.com2026-02-14 → 2026-08-12 · 3 obs

○ 2020-02-08 18:58:54
● 2026-02-14 23:05:06
● 2026-08-12 16:19:36

●NSlara.ns.cloudflare.com2026-02-14 → 2026-08-12 · 3 obs

○ 2020-02-08 18:58:54
● 2026-02-14 23:05:06
● 2026-08-12 16:19:36

○NSns1.linux-hosting.in2015-07-25 → 2017-07-09 · 4 obs

● 2015-07-25 10:44:00
● 2017-07-09 12:19:48
○ 2020-02-04 10:14:36
○ 2026-08-12 16:19:36

○NSns2.linux-hosting.in2015-07-25 → 2017-07-09 · 4 obs

● 2015-07-25 10:44:00
● 2017-07-09 12:19:48
○ 2020-02-04 10:14:36
○ 2026-08-12 16:19:36

○NStim.ns.cloudflare.com2020-02-04 → 2020-02-08 · 5 obs

○ 2017-07-09 12:19:48
● 2020-02-04 10:14:36
● 2020-02-08 18:58:54
○ 2026-02-14 23:05:06
○ 2026-08-12 16:19:36

●MXalt1.aspmx.l.google.com2026-02-14 → 2026-08-12 · 3 obs

○ 2020-02-04 10:14:36
● 2026-02-14 23:05:06
● 2026-08-12 16:19:36

●MXalt2.aspmx.l.google.com2026-02-14 → 2026-08-12 · 3 obs

○ 2020-02-04 10:14:36
● 2026-02-14 23:05:06
● 2026-08-12 16:19:36

●MXalt3.aspmx.l.google.com2026-02-14 → 2026-08-12 · 3 obs

○ 2020-02-04 10:14:36
● 2026-02-14 23:05:06
● 2026-08-12 16:19:36

●MXalt4.aspmx.l.google.com2026-02-14 → 2026-08-12 · 3 obs

○ 2020-02-04 10:14:36
● 2026-02-14 23:05:06
● 2026-08-12 16:19:36

●MXaspmx.l.google.com2026-02-14 → 2026-08-12 · 3 obs

○ 2020-02-04 10:14:36
● 2026-02-14 23:05:06
● 2026-08-12 16:19:36

○MXmasteringlinux.in2015-07-25 → 2017-07-09 · 4 obs

● 2015-07-25 10:44:00
● 2017-07-09 12:19:48
○ 2020-02-04 10:14:36
○ 2026-08-12 16:19:36

○A104.18.34.1792020-02-04 → 2020-02-08 · 5 obs

○ 2017-07-09 12:19:48
● 2020-02-04 10:14:36
● 2020-02-08 18:58:54
○ 2026-02-14 23:05:06
○ 2026-08-12 16:19:36

○A104.18.35.1792020-02-04 → 2020-02-08 · 5 obs

○ 2017-07-09 12:19:48
● 2020-02-04 10:14:36
● 2020-02-08 18:58:54
○ 2026-02-14 23:05:06
○ 2026-08-12 16:19:36

●A104.21.0.1572026-02-14 → 2026-08-12 · 3 obs

○ 2020-02-08 18:58:54
● 2026-02-14 23:05:06
● 2026-08-12 16:19:36

●A172.67.151.662026-02-14 → 2026-08-12 · 3 obs

○ 2020-02-08 18:58:54
● 2026-02-14 23:05:06
● 2026-08-12 16:19:36

○A173.236.153.1752016-03-11 → 2017-07-09 · 5 obs

○ 2015-11-27 05:14:16
● 2016-03-11 05:25:06
● 2017-07-09 12:19:48
○ 2020-02-04 10:14:36
○ 2026-08-12 16:19:36

○A2606:4700:3030::ac43:97422026-02-14 → 2026-02-14 · 4 obs

○ 2020-02-08 18:58:54
● 2026-02-14 23:05:06
○ 2026-06-26 20:49:14
○ 2026-08-12 16:19:36

○A2606:4700:3032::6812:22b32020-02-04 → 2020-02-08 · 5 obs

○ 2017-07-09 12:19:48
● 2020-02-04 10:14:36
● 2020-02-08 18:58:54
○ 2026-02-14 23:05:06
○ 2026-08-12 16:19:36

○A2606:4700:3033::6812:23b32020-02-04 → 2020-02-08 · 5 obs

○ 2017-07-09 12:19:48
● 2020-02-04 10:14:36
● 2020-02-08 18:58:54
○ 2026-02-14 23:05:06
○ 2026-08-12 16:19:36

●A2606:4700:3034::6815:9d2026-06-26 → 2026-08-12 · 3 obs

○ 2026-02-14 23:05:06
● 2026-06-26 20:49:14
● 2026-08-12 16:19:36

●A2606:4700:3034::ac43:97422026-06-26 → 2026-08-12 · 3 obs

○ 2026-02-14 23:05:06
● 2026-06-26 20:49:14
● 2026-08-12 16:19:36

○A2606:4700:3035::6815:9d2026-02-14 → 2026-02-14 · 4 obs

○ 2020-02-08 18:58:54
● 2026-02-14 23:05:06
○ 2026-06-26 20:49:14
○ 2026-08-12 16:19:36

○A43.252.91.1612015-07-25 → 2015-11-27 · 4 obs

● 2015-07-25 10:44:00
● 2015-11-27 05:14:16
○ 2016-03-11 05:25:06
○ 2026-08-12 16:19:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
in	ns2.registry.in, ns3.registry.in, ns4.registry.in, ns1.registry.in	-
masteringlinux.in	lara.ns.cloudflare.com, bob.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.104

NS records: lara.ns.cloudflare.com, bob.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masteringlinux.in (unsigned zone)

⏱️ Timing

Total: 355ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.0.157, 172.67.151.66`
AAAA	2	`2606:4700:3034::ac43:9742, 2606:4700:3034::6815:9d`
NS	2	`bob.ns.cloudflare.com, lara.ns.cloudflare.com`
MX	5	`ASPMX.L.GOOGLE.COM (pri: 1), ALT3.ASPMX.L.GOOGLE.COM (pri: 10)...`
TXT	1	`v=spf1 +a +mx +ip4:192.46.208.134 includ`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bob.ns.cloudflare.com dns.cloudflare.com`

Analysis

Hierarchy

www.masteringlinux.in is delegated beneath masteringlinux.in.

IP Addresses

masteringlinux.in directs to four IP numbers, which are 104.21.0.157, 172.67.151.66, 2606:4700:3034::6815:9d and 2606:4700:3034::ac43:9742.

Among the host names that share IP numbers with masteringlinux.in are spoton.co.nz, rhunru7775.ziieit.com, umbuky8412.ziieit.com and two others.

Name Servers

masteringlinux.in uses two name servers for its delegation: bob.ns.cloudflare.com and lara.ns.cloudflare.com.

masteringlinux.in has the same name server delegation as a number of other domains, such as docshablon.ru, iconreg.com, xn--fhqw1vtlg057a.com and two more.

There is at least partial name server overlap between masteringlinux.in and other domains — cwreenactors.com, paranix.be, myqr.pro and two more among them.

Host names resolving to 6 IP numbers:

Hostname bob.ns.cloudflare.com directs to 108.162.193.104, 172.64.33.104 and 173.245.59.104 along with 3 other IP addresses.

Hostname lara.ns.cloudflare.com directs to 108.162.192.128, 172.64.32.128 and 173.245.58.128 along with 3 other IP addresses.

Mail Servers

Five mail servers handle masteringlinux.in: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

masteringlinux.in shares at least some of its mail servers with other domains — for example ns500841.ns500794.ns500794.ns500821.ns500794.ns500821.ns500794.ns500795.ns500795.lustypartnersfinder.com, btecllc.com, expertairclean.com and two more.

It is common for these mail servers to co-occur with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com as mail servers.

Hosts with two IP numbers each:

aspmx.l.google.com directs traffic to 172.253.63.26 and 2607:f8b0:4004:c23::1a.

alt1.aspmx.l.google.com directs traffic to 192.178.234.27 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com directs traffic to 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com directs traffic to 172.253.157.26 and 2a00:1450:400c:c23::1b.