`master-class.live`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:39d8^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:a70b^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.57.216^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.167.11^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`anna.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a66^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`anna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c066^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`anna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2066^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`anna.ns.cloudflare.com`
		A	108.162.192.102^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`anna.ns.cloudflare.com`
		A	172.64.32.102^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`anna.ns.cloudflare.com`
		A	173.245.58.102^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`anna.ns.cloudflare.com`
NS	`rob.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b8c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rob.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c18c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rob.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:218c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rob.ns.cloudflare.com`
		A	108.162.193.140^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rob.ns.cloudflare.com`
		A	172.64.33.140^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rob.ns.cloudflare.com`
		A	173.245.59.140^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rob.ns.cloudflare.com`
MX	`mail.master-class.live` ⭐
		A	158.94.208.18^{🇬🇧 APIVERSA158.94.208.0/24}
			PTR	`mail.master-class.live`
TXT	`v=spf1 a mx ip4:158.94.208.18 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.57.216, 172.67.167.11
		IPv6 hints	2606:4700:3033::6815:39d8, 2606:4700:3036::ac43:a70b
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=149, name=cloudflare-ech.com
SOA	`anna.ns.cloudflare.com`dns@cloudflare.com serial=2406121851

`live`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.live` ⭐
	NS	`v0n1.nic.live`
	NS	`v0n2.nic.live`
	NS	`v0n3.nic.live`
	NS	`v2n0.nic.live`
	NS	`v2n1.nic.live`
	SOA	`v0n0.nic.live`hostmaster@donuts.email serial=1784262123

Subdomains

mail.master-class.live

Same first word

Similar names

smart-eclass.com

smart-scales.myshopify.com

DNS History

13 records (7 active, 6 former)

●NSanna.ns.cloudflare.com2026-04-23 → 2026-07-17 · 2 obs

● 2026-04-23 16:52:16
● 2026-07-17 04:52:46

●NSrob.ns.cloudflare.com2026-04-23 → 2026-07-17 · 2 obs

● 2026-04-23 16:52:16
● 2026-07-17 04:52:46

●MXmail.master-class.live2026-04-23 → 2026-07-17 · 2 obs

● 2026-04-23 16:52:16
● 2026-07-17 04:52:46

●A104.21.57.2162026-04-23 → 2026-07-17 · 12 obs

● 2026-04-23 16:52:16
● 2026-04-23 18:52:32
○ 2026-04-25 10:21:16
○ 2026-05-09 08:15:34
● 2026-05-11 20:00:24
○ 2026-05-16 08:05:30
○ 2026-05-23 05:37:22
● 2026-05-25 23:03:24
● 2026-05-28 10:22:48
○ 2026-05-30 01:11:40
● 2026-07-16 03:31:10
● 2026-07-17 04:52:46

●A172.67.167.112026-04-23 → 2026-07-17 · 12 obs

○A188.114.96.02026-04-25 → 2026-05-30 · 11 obs

○ 2026-04-23 18:52:32
● 2026-04-25 10:21:16
● 2026-05-09 08:15:34
○ 2026-05-11 20:00:24
● 2026-05-16 08:05:30
● 2026-05-23 05:37:22
○ 2026-05-25 23:03:24
○ 2026-05-28 10:22:48
● 2026-05-30 01:11:40
○ 2026-07-16 03:31:10
○ 2026-07-17 04:52:46

○A188.114.97.02026-04-25 → 2026-05-30 · 11 obs

○A2606:4700:3030::6815:39d82026-04-23 → 2026-05-28 · 11 obs

●A2606:4700:3033::6815:39d82026-07-16 → 2026-07-17 · 3 obs

○ 2026-05-30 01:11:40
● 2026-07-16 03:31:10
● 2026-07-17 04:52:46

○A2606:4700:3035::ac43:a70b2026-04-23 → 2026-05-28 · 11 obs

●A2606:4700:3036::ac43:a70b2026-07-16 → 2026-07-17 · 3 obs

○ 2026-05-30 01:11:40
● 2026-07-16 03:31:10
● 2026-07-17 04:52:46

○A2a06:98c1:3120::2026-04-25 → 2026-05-30 · 11 obs

○A2a06:98c1:3121::2026-04-25 → 2026-05-30 · 11 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
live	v0n3.nic.live, v0n1.nic.live, v2n1.nic.live, v0n0.nic.live...	12 records
master-class.live	rob.ns.cloudflare.com, anna.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.140

NS records: rob.ns.cloudflare.com, anna.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for master-class.live (unsigned zone)

⏱️ Timing

Total: 423ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.57.216, 172.67.167.11`
AAAA	2	`2606:4700:3036::ac43:a70b, 2606:4700:3033::6815:39d8`
NS	2	`anna.ns.cloudflare.com, rob.ns.cloudflare.com`
MX	1	`mail.master-class.live (pri: 10)`
TXT	1	`v=spf1 a mx ip4:158.94.208.18 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`anna.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.live, v0n1.nic.live, v0n2.nic.live...)

Analysis

Hierarchy

mail.master-class.live is delegated beneath master-class.live.

IP Addresses

master-class.live points to the four IP addresses 104.21.57.216, 172.67.167.11, 2606:4700:3033::6815:39d8 and 2606:4700:3036::ac43:a70b.

Additional host names — 6efee.com, 889993261.xyz, martinlutherschool.org and two others — share IP numbers with master-class.live.

Name Servers

master-class.live is delegated to two name servers: anna.ns.cloudflare.com and rob.ns.cloudflare.com.

master-class.live shares its name server setup with other domains, including cogent.cc, paythem.net, pr1m3consulting.pt and two others.

There is at least partial name server overlap between master-class.live and other domains — neovideoworks.com, savesforgames.com, paptak.org and two more among them.

These name servers are routinely deployed together with the name servers bob.ns.cloudflare.com.

Host names with 6 IP numbers:

anna.ns.cloudflare.com resolves to 108.162.192.102, 172.64.32.102, 173.245.58.102 and 3 other IP addresses.

rob.ns.cloudflare.com resolves to 108.162.193.140, 172.64.33.140, 173.245.59.140 and 3 other IP addresses.

Mail Servers

master-class.live has one mail server: mail.master-class.live.

mail.master-class.live resolves to a single IP number: 158.94.208.18.

master-class.live - robtex.com