worldmasterclass.com - dns.ninja

`worldmasterclass.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:2bf2^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::ac43:be5f^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.43.242^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.190.95^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`aria.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a44^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aria.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c044^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aria.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2044^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aria.ns.cloudflare.com`
		A	108.162.192.68^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aria.ns.cloudflare.com`
		A	172.64.32.68^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aria.ns.cloudflare.com`
		A	173.245.58.68^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aria.ns.cloudflare.com`
NS	`walt.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b94^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`walt.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c194^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`walt.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2194^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`walt.ns.cloudflare.com`
		A	108.162.193.148^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`walt.ns.cloudflare.com`
		A	172.64.33.148^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`walt.ns.cloudflare.com`
		A	173.245.59.148^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`walt.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c06::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bg-in-f26.1e100.net`
		A	172.253.115.27^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`aspmx3.googlemail.com`⁽¹⁰⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`mxa.mailgun.org`⁽¹⁰⁾
		A	34.36.182.139^{🇺🇸 Google34.32.0.0/11}
			PTR	`139.182.36.34.bc.googleusercontent.com`
MX	`mxb.mailgun.org`⁽¹⁰⁾
		A	34.36.182.139^{🇺🇸 Google34.32.0.0/11}
			PTR	`139.182.36.34.bc.googleusercontent.com`
TXT	`google-site-verification=I2Hlvl5qVyx7LuXUulIh7EkJdGKiZcTergA5XL9Dr1g`
TXT	`google-site-verification=k68zwTExiIeGi0B1n8r0ONufPHZiUJu7-wyPlta-eJ8`
TXT	`v=spf1 include:_spf.google.com include:spf.leadconnectorhq.com include:mailgu...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.43.242, 172.67.190.95
		IPv6 hints	2606:4700:3030::6815:2bf2, 2606:4700:3031::ac43:be5f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=221, name=cloudflare-ech.com
SOA	`aria.ns.cloudflare.com`dns@cloudflare.com serial=2406550608

`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=1783190241

Subdomains

www.worldmasterclass.com

Same first word

worldmasterclass.com

DNS History

37 records (13 active, 24 former)

●NSaria.ns.cloudflare.com2026-04-16 → 2026-07-04 · 3 obs

○ 2020-02-11 11:45:32
● 2026-04-16 18:34:32
● 2026-07-04 18:56:56

○NSdns1.registrar-servers.com2020-02-11 → 2020-02-11 · 4 obs

○ 2017-03-15 04:10:42
● 2020-02-11 11:45:32
○ 2026-04-16 18:34:32
○ 2026-07-04 18:56:56

○NSdns2.registrar-servers.com2020-02-11 → 2020-02-11 · 4 obs

○ 2017-03-15 04:10:42
● 2020-02-11 11:45:32
○ 2026-04-16 18:34:32
○ 2026-07-04 18:56:56

○NSns1.namebrightdns.com2015-08-20 → 2017-03-15 · 6 obs

● 2015-08-20 09:25:58
○ 2015-12-10 17:02:20
● 2016-03-15 17:53:42
● 2017-03-15 04:10:42
○ 2020-02-11 11:45:32
○ 2026-07-04 18:56:56

○NSns2.namebrightdns.com2015-08-20 → 2017-03-15 · 6 obs

● 2015-08-20 09:25:58
○ 2015-12-10 17:02:20
● 2016-03-15 17:53:42
● 2017-03-15 04:10:42
○ 2020-02-11 11:45:32
○ 2026-07-04 18:56:56

○NSnsg1.namebrightdns.com2015-08-20 → 2015-12-10 · 4 obs

● 2015-08-20 09:25:58
● 2015-12-10 17:02:20
○ 2016-03-15 17:53:42
○ 2026-07-04 18:56:56

○NSnsg2.namebrightdns.com2015-12-10 → 2015-12-10 · 4 obs

○ 2015-08-20 09:25:58
● 2015-12-10 17:02:20
○ 2016-03-15 17:53:42
○ 2026-07-04 18:56:56

●NSwalt.ns.cloudflare.com2026-04-16 → 2026-07-04 · 3 obs

○ 2020-02-11 11:45:32
● 2026-04-16 18:34:32
● 2026-07-04 18:56:56

●MXalt1.aspmx.l.google.com2020-02-11 → 2026-07-04 · 2 obs

● 2020-02-11 11:45:32
● 2026-07-04 18:56:56

●MXalt2.aspmx.l.google.com2020-02-11 → 2026-07-04 · 2 obs

● 2020-02-11 11:45:32
● 2026-07-04 18:56:56

●MXaspmx.l.google.com2020-02-11 → 2026-07-04 · 2 obs

● 2020-02-11 11:45:32
● 2026-07-04 18:56:56

●MXaspmx2.googlemail.com2020-02-11 → 2026-07-04 · 2 obs

● 2020-02-11 11:45:32
● 2026-07-04 18:56:56

●MXaspmx3.googlemail.com2020-02-11 → 2026-07-04 · 2 obs

● 2020-02-11 11:45:32
● 2026-07-04 18:56:56

●MXmxa.mailgun.org2026-04-16 → 2026-07-04 · 3 obs

○ 2020-02-11 11:45:32
● 2026-04-16 18:34:32
● 2026-07-04 18:56:56

●MXmxb.mailgun.org2026-04-16 → 2026-07-04 · 3 obs

○ 2020-02-11 11:45:32
● 2026-04-16 18:34:32
● 2026-07-04 18:56:56

○A103.27.74.1692020-02-11 → 2020-02-11 · 4 obs

○ 2017-03-15 04:10:42
● 2020-02-11 11:45:32
○ 2026-04-16 18:34:32
○ 2026-07-04 18:56:56

●A104.21.43.2422026-04-16 → 2026-07-04 · 5 obs

○ 2020-02-11 11:45:32
● 2026-04-16 18:34:32
○ 2026-04-27 20:13:44
● 2026-07-04 18:56:52
● 2026-07-04 18:56:56

○A107.23.160.2182015-12-10 → 2015-12-10 · 4 obs

○ 2015-08-20 09:25:58
● 2015-12-10 17:02:20
○ 2016-03-15 17:53:42
○ 2026-07-04 18:56:56

○A107.23.198.2402016-07-14 → 2016-07-14 · 4 obs

○ 2016-03-15 17:53:42
● 2016-07-14 03:59:32
○ 2017-03-15 04:10:42
○ 2026-07-04 18:56:56

●A172.67.190.952026-04-16 → 2026-07-04 · 5 obs

○ 2020-02-11 11:45:32
● 2026-04-16 18:34:32
○ 2026-04-27 20:13:44
● 2026-07-04 18:56:52
● 2026-07-04 18:56:56

○A188.114.96.02026-04-27 → 2026-04-27 · 4 obs

○ 2026-04-16 18:34:32
● 2026-04-27 20:13:44
○ 2026-07-04 18:56:52
○ 2026-07-04 18:56:56

○A188.114.97.02026-04-27 → 2026-04-27 · 4 obs

○ 2026-04-16 18:34:32
● 2026-04-27 20:13:44
○ 2026-07-04 18:56:52
○ 2026-07-04 18:56:56

●A2606:4700:3030::6815:2bf22026-04-16 → 2026-07-04 · 5 obs

○ 2020-02-11 11:45:32
● 2026-04-16 18:34:32
○ 2026-04-27 20:13:44
● 2026-07-04 18:56:52
● 2026-07-04 18:56:56

●A2606:4700:3031::ac43:be5f2026-07-04 → 2026-07-04 · 3 obs

○ 2026-04-27 20:13:44
● 2026-07-04 18:56:52
● 2026-07-04 18:56:56

○A2606:4700:3033::ac43:be5f2026-04-16 → 2026-04-16 · 4 obs

○ 2020-02-11 11:45:32
● 2026-04-16 18:34:32
○ 2026-04-27 20:13:44
○ 2026-07-04 18:56:56

○A2a06:98c1:3120::2026-04-27 → 2026-04-27 · 4 obs

○ 2026-04-16 18:34:32
● 2026-04-27 20:13:44
○ 2026-07-04 18:56:52
○ 2026-07-04 18:56:56

○A2a06:98c1:3121::2026-04-27 → 2026-04-27 · 4 obs

○ 2026-04-16 18:34:32
● 2026-04-27 20:13:44
○ 2026-07-04 18:56:52
○ 2026-07-04 18:56:56

○A52.0.96.242016-03-15 → 2016-03-15 · 4 obs

○ 2015-12-10 17:02:20
● 2016-03-15 17:53:42
○ 2016-07-14 03:59:32
○ 2026-07-04 18:56:56

○A52.204.129.222017-03-15 → 2017-03-15 · 4 obs

○ 2016-07-14 03:59:32
● 2017-03-15 04:10:42
○ 2020-02-11 11:45:32
○ 2026-07-04 18:56:56

○A52.4.72.1372016-07-14 → 2016-07-14 · 4 obs

○ 2016-03-15 17:53:42
● 2016-07-14 03:59:32
○ 2017-03-15 04:10:42
○ 2026-07-04 18:56:56

○A52.71.117.992016-03-15 → 2016-03-15 · 4 obs

○ 2015-12-10 17:02:20
● 2016-03-15 17:53:42
○ 2016-07-14 03:59:32
○ 2026-07-04 18:56:56

○A54.174.31.2542015-08-20 → 2015-08-20 · 3 obs

● 2015-08-20 09:25:58
○ 2026-04-16 18:34:32
○ 2026-07-04 18:56:56

○A54.208.74.2152015-08-20 → 2015-08-20 · 3 obs

● 2015-08-20 09:25:58
○ 2026-04-16 18:34:32
○ 2026-07-04 18:56:56

○A54.209.90.812015-12-10 → 2015-12-10 · 4 obs

○ 2015-08-20 09:25:58
● 2015-12-10 17:02:20
○ 2016-03-15 17:53:42
○ 2026-07-04 18:56:56

○A54.85.127.702017-03-15 → 2017-03-15 · 4 obs

○ 2016-07-14 03:59:32
● 2017-03-15 04:10:42
○ 2020-02-11 11:45:32
○ 2026-07-04 18:56:56

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-08-20 → 2016-07-14 · 4 obs

● 2015-08-20 09:25:58
● 2016-07-14 03:59:32
○ 2017-03-15 04:10:42
○ 2026-07-04 18:56:56

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-03-15 → 2017-03-15 · 4 obs

○ 2016-07-14 03:59:32
● 2017-03-15 04:10:42
○ 2020-02-11 11:45:32
○ 2026-07-04 18:56:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net...	-
worldmasterclass.com	walt.ns.cloudflare.com, aria.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.148

NS records: walt.ns.cloudflare.com, aria.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for worldmasterclass.com (unsigned zone)

⏱️ Timing

Total: 329ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.190.95, 104.21.43.242`
AAAA	2	`2606:4700:3031::ac43:be5f, 2606:4700:3030::6815:2bf2`
NS	2	`aria.ns.cloudflare.com, walt.ns.cloudflare.com`
MX	7	`aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)...`
TXT	3	`google-site-verification=I2Hlvl5qVyx7LuX, google-site-verification=k68zwTExiIeGi0B...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`aria.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

www.worldmasterclass.com is delegated beneath worldmasterclass.com.

IP Addresses

worldmasterclass.com directs to four IP numbers, which are 104.21.43.242, 172.67.190.95, 2606:4700:3030::6815:2bf2 and 2606:4700:3031::ac43:be5f.

Two other host names, along with cc.cod.network, roger168.com and lexatech.net, also share IP numbers with worldmasterclass.com.

Name Servers

worldmasterclass.com is delegated to two name servers: aria.ns.cloudflare.com and walt.ns.cloudflare.com.

worldmasterclass.com shares its NS records with other domains, for example tendintemoda.ro, reshiftmedia.ca, fastfundraise.com and two others.

There is at least partial name server overlap between worldmasterclass.com and other domains — telefun.ca, mercadoenvioscoleta.app, cercle30.com and two more among them.

The name servers kiki.ns.cloudflare.com, erin.ns.cloudflare.com and kim.ns.cloudflare.com are often found in combination with these name servers.

DNS names with 6 IP addresses:

aria.ns.cloudflare.com resolves to 108.162.192.68, 172.64.32.68, 173.245.58.68 and 3 other IP addresses.

walt.ns.cloudflare.com resolves to 108.162.193.148, 172.64.33.148, 173.245.59.148 and 3 other IP addresses.

Mail Servers

worldmasterclass.com accepts email via 7 mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, mxa.mailgun.org and 4 other.

There is at least a partial MX overlap between worldmasterclass.com and other domains, including ns500693.ns500693.ns500734.ns500693.ns500693.ns500588.ns500699.ns500588.ns500683.ns500612.ns500632.ns500612.dtrkdll.com, ns500734.ns500693.ns500699.ns500734.ns500699.ns500734.ns500699.ns500699.ns500693.ns500699.ns500699.ns500588.ns500632.ns500110.dtrkdll.com, ns500698.ns500698.ns500698.ns500758.ns500759.ns500698.ns500735.ns500698.ns500736.ns500576.ns500576.ns500576.ns500698.ns500652.trackreceptor.com and two others.

These mail servers tend to appear in combination with mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, aspmx.l.google.com and 5 others.

Host names that have two IP addresses:

aspmx2.googlemail.com points to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

aspmx3.googlemail.com points to 172.253.116.26 and 2a00:1450:400b:c02::1b.

aspmx.l.google.com points to 172.253.115.27 and 2607:f8b0:4004:c06::1a.

alt1.aspmx.l.google.com points to 108.177.123.27 and 2800:3f0:4003:c0f::1b.

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

Host names that point to one IP address:

mxa.mailgun.org points to 34.36.182.139.

mxb.mailgun.org points to 34.36.182.139.

aspmx2.googlemail.com and alt1.aspmx.l.google.com are host names that each point to 108.177.123.27 IP addresses.

aspmx3.googlemail.com and alt2.aspmx.l.google.com are host names that each point to 2a00:1450:400b:c02::1b IP addresses.

mxa.mailgun.org and mxb.mailgun.org are host names that each point to 34.36.182.139 IP addresses.