`classstream.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:db70^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:4627^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.70.39^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.219.112^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dexter.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cbe^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dexter.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3be^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dexter.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23be^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dexter.ns.cloudflare.com`
		A	108.162.195.190^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dexter.ns.cloudflare.com`
		A	162.159.44.190^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dexter.ns.cloudflare.com`
		A	172.64.35.190^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dexter.ns.cloudflare.com`
NS	`grannbo.ns.cloudflare.com`
		A	2606:4700:50::a29f:2696^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grannbo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c296^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`grannbo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2296^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`grannbo.ns.cloudflare.com`
		A	108.162.194.150^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grannbo.ns.cloudflare.com`
		A	162.159.38.150^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grannbo.ns.cloudflare.com`
		A	172.64.34.150^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grannbo.ns.cloudflare.com`
TXT	`google-site-verification=IsAoa91j250lFIOYy2Tm6XzJj-uGK63yvnEUopBzXBw`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.70.39, 172.67.219.112
		IPv6 hints	2606:4700:3034::ac43:db70, 2606:4700:3035::6815:4627
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=117, name=cloudflare-ech.com
SOA	`dexter.ns.cloudflare.com`dns@cloudflare.com serial=2407271245

`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=1783977777

Previously MX for

classstream.com

Same first word

classstream.online

classstream.com

Similar names

masterclass.world

masterclass.cc

masterclass.com

masterclass.net

masterclass.bg

masterclass.media

masterclass.today

slamactress.com

masterclass.fr

masterclass.uz

masterclass.je

classmaster.co.uk

masterclass.pt

esmartclass.net

masterclass.pk

masterclass.com.ua

masterclass.sydney

masterclass.ch

masterclass.cl

masterclass.am

smartscales.ru

masterclass.info

masterclass.it

masterclass.site

masterclass.se

masterclass.be

classmaster.ca

masterclass.co.uk

masterclass.dk

esmartclass.com

scarletmass.com

masterclass.courses

masterclass.co

masterclass.my

masterclass.ie

masterclass.ninja

masterclass.at

masterclass.com.hk

masterclass.de

masterclass.com.es

masterclass.com.mx

masterclass.az

masterclass.ng

masterclass.co.za

masterclass.lt

masterclass.us

masterclass.pl

classmaster.eu

masterclass.biz

classmaster.com

masterclass.com.br

masterclass.hu

masterclass.eu

masterclass.edu.ge

masterclass.no

masterclass.team

masterclass.digital

masterclass.io

masterclass.al

classmaster.cz

masterclass.co.ke

masterclass.com.tr

smtcarsales.com

masterclass.gr

masterclass.ca

masterclass.lv

masterclass.care

masterclass.kg

masterclass.jp

masterclass.co.id

classmaster.ru

masterclass.dev

DNS History

27 records (6 active, 21 former)

●NSdexter.ns.cloudflare.com2026-06-04 → 2026-07-13 · 3 obs

○ 2026-03-26 06:39:06
● 2026-06-04 06:31:20
● 2026-07-13 21:50:52

●NSgrannbo.ns.cloudflare.com2026-06-04 → 2026-07-13 · 3 obs

○ 2026-03-26 06:39:06
● 2026-06-04 06:31:20
● 2026-07-13 21:50:52

○NSns1.atom.com2026-03-21 → 2026-03-26 · 5 obs

○ 2017-12-08 16:20:22
● 2026-03-21 17:17:50
● 2026-03-26 06:39:06
○ 2026-06-04 06:31:20
○ 2026-07-13 21:50:52

○NSns1.dnslink.com2016-12-28 → 2016-12-28 · 4 obs

○ 2016-06-10 14:54:20
● 2016-12-28 21:32:26
○ 2017-12-08 16:20:22
○ 2026-07-13 21:50:52

○NSns1.ichannels.com2015-07-02 → 2015-11-18 · 4 obs

● 2015-07-02 02:16:18
● 2015-11-18 17:39:14
○ 2016-06-10 14:54:20
○ 2026-07-13 21:50:52

○NSns1.mobileweb.com2016-06-10 → 2016-06-10 · 4 obs

○ 2015-11-18 17:39:14
● 2016-06-10 14:54:20
○ 2016-12-28 21:32:26
○ 2026-07-13 21:50:52

○NSns1.namebrightdns.com2017-12-08 → 2017-12-08 · 4 obs

○ 2016-12-28 21:32:26
● 2017-12-08 16:20:22
○ 2026-03-21 17:17:50
○ 2026-07-13 21:50:52

○NSns2.atom.com2026-03-21 → 2026-03-26 · 5 obs

○ 2017-12-08 16:20:22
● 2026-03-21 17:17:50
● 2026-03-26 06:39:06
○ 2026-06-04 06:31:20
○ 2026-07-13 21:50:52

○NSns2.dnslink.com2016-12-28 → 2016-12-28 · 4 obs

○ 2016-06-10 14:54:20
● 2016-12-28 21:32:26
○ 2017-12-08 16:20:22
○ 2026-07-13 21:50:52

○NSns2.ichannels.com2015-07-02 → 2015-11-18 · 4 obs

● 2015-07-02 02:16:18
● 2015-11-18 17:39:14
○ 2016-06-10 14:54:20
○ 2026-07-13 21:50:52

○NSns2.mobileweb.com2016-06-10 → 2016-06-10 · 4 obs

○ 2015-11-18 17:39:14
● 2016-06-10 14:54:20
○ 2016-12-28 21:32:26
○ 2026-07-13 21:50:52

○NSns2.namebrightdns.com2017-12-08 → 2017-12-08 · 4 obs

○ 2016-12-28 21:32:26
● 2017-12-08 16:20:22
○ 2026-03-21 17:17:50
○ 2026-07-13 21:50:52

○MXclassstream.com2015-07-02 → 2016-06-10 · 4 obs

● 2015-07-02 02:16:18
● 2016-06-10 14:54:20
○ 2016-12-28 21:32:26
○ 2026-07-13 21:50:52

○MXmail.b-io.co2016-12-28 → 2016-12-28 · 4 obs

○ 2016-06-10 14:54:20
● 2016-12-28 21:32:26
○ 2017-12-08 16:20:22
○ 2026-07-13 21:50:52

○MXmail1.namebrightmail.com2017-12-08 → 2017-12-08 · 4 obs

○ 2016-12-28 21:32:26
● 2017-12-08 16:20:22
○ 2026-03-21 17:17:50
○ 2026-07-13 21:50:52

○MXmail2.namebrightmail.com2017-12-08 → 2017-12-08 · 4 obs

○ 2016-12-28 21:32:26
● 2017-12-08 16:20:22
○ 2026-03-21 17:17:50
○ 2026-07-13 21:50:52

●A104.21.70.392026-06-04 → 2026-07-13 · 3 obs

○ 2026-03-26 06:39:06
● 2026-06-04 06:31:20
● 2026-07-13 21:50:52

●A172.67.219.1122026-06-04 → 2026-07-13 · 3 obs

○ 2026-03-26 06:39:06
● 2026-06-04 06:31:20
● 2026-07-13 21:50:52

○A192.237.245.1622015-07-02 → 2015-11-18 · 4 obs

● 2015-07-02 02:16:18
● 2015-11-18 17:39:14
○ 2016-06-10 14:54:20
○ 2026-07-13 21:50:52

○A198.154.251.2202016-06-10 → 2016-06-10 · 4 obs

○ 2015-11-18 17:39:14
● 2016-06-10 14:54:20
○ 2016-12-28 21:32:26
○ 2026-07-13 21:50:52

○A209.15.13.1342016-12-28 → 2016-12-28 · 4 obs

○ 2016-06-10 14:54:20
● 2016-12-28 21:32:26
○ 2017-12-08 16:20:22
○ 2026-07-13 21:50:52

○A2606:4700:3030::ac43:db702026-06-04 → 2026-06-08 · 4 obs

○ 2026-03-26 06:39:06
● 2026-06-04 06:31:20
● 2026-06-08 11:18:04
○ 2026-07-13 21:50:52

○A2606:4700:3032::6815:46272026-06-04 → 2026-06-08 · 4 obs

○ 2026-03-26 06:39:06
● 2026-06-04 06:31:20
● 2026-06-08 11:18:04
○ 2026-07-13 21:50:52

●A2606:4700:3034::ac43:db702026-07-13 → 2026-07-13 · 2 obs

○ 2026-06-08 11:18:04
● 2026-07-13 21:50:52

●A2606:4700:3035::6815:46272026-07-13 → 2026-07-13 · 2 obs

○ 2026-06-08 11:18:04
● 2026-07-13 21:50:52

○A52.20.84.622026-03-21 → 2026-03-26 · 5 obs

○ 2017-12-08 16:20:22
● 2026-03-21 17:17:50
● 2026-03-26 06:39:06
○ 2026-06-04 06:31:20
○ 2026-07-13 21:50:52

○CNAMEurlforward.namebright.com2017-12-08 → 2017-12-08 · 3 obs

● 2017-12-08 16:20:22
○ 2026-03-21 17:17:50
○ 2026-07-13 21:50:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
classstream.com	grannbo.ns.cloudflare.com, dexter.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:172.64.35.190

NS records: grannbo.ns.cloudflare.com, dexter.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classstream.com (unsigned zone)

⏱️ Timing

Total: 514ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.219.112, 104.21.70.39`
AAAA	2	`2606:4700:3035::6815:4627, 2606:4700:3034::ac43:db70`
NS	2	`dexter.ns.cloudflare.com, grannbo.ns.cloudflare.com`
TXT	1	`google-site-verification=IsAoa91j250lFIO`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dexter.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

classstream.com resolves to four IP addresses: 104.21.70.39, 172.67.219.112, 2606:4700:3034::ac43:db70 and 2606:4700:3035::6815:4627.

Two other host names, along with tripscans68.cc, seva.ru and efilmsy.pl, also share IP numbers with classstream.com.

Name Servers

DNS delegation for classstream.com points to two name servers: dexter.ns.cloudflare.com and grannbo.ns.cloudflare.com.

classstream.com shares its NS records with other domains, for example localreferral.com, vpublishers.com, mobilemgmt.com and two others.

classstream.com shares at least some of its name servers with other domains, including zoobotics.se, ezoterika.ro, vsharp.net and two others.

These name servers are frequently paired with the name servers sonny.ns.cloudflare.com and meg.ns.cloudflare.com.

DNS names with 6 IP addresses:

dexter.ns.cloudflare.com has IP addresses 108.162.195.190, 162.159.44.190 and 172.64.35.190, plus 3 other.

grannbo.ns.cloudflare.com has IP addresses 108.162.194.150, 162.159.38.150 and 172.64.34.150, plus 3 other.

classstream.com - robtex.com

classstream.com

com

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`classstream.com`

`com`