classgroup.info - dns.ninja

`classgroup.info`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:12f4^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:b7f3^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.18.244^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.183.243^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ethan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2ce8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ethan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3e8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ethan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23e8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ethan.ns.cloudflare.com`
		A	108.162.195.232^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ethan.ns.cloudflare.com`
		A	162.159.44.232^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ethan.ns.cloudflare.com`
		A	172.64.35.232^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ethan.ns.cloudflare.com`
NS	`kenia.ns.cloudflare.com`
		A	2606:4700:50::a29f:265d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kenia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c25d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kenia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:225d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kenia.ns.cloudflare.com`
		A	108.162.194.93^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kenia.ns.cloudflare.com`
		A	162.159.38.93^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kenia.ns.cloudflare.com`
		A	172.64.34.93^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kenia.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c27::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadsk-in-f27.1e100.net`
		A	142.251.179.26^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.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	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`smtp.google.com`⁽¹⁰⁾
		A	2607:f8b0:4004:c06::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bg-in-f27.1e100.net`
		A	2607:f8b0:4004:c09::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bh-in-f27.1e100.net`
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
		A	172.253.115.26^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-in-f26.1e100.net`
		A	172.253.122.27^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f27.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.18.244, 172.67.183.243
		IPv6 hints	2606:4700:3035::6815:12f4, 2606:4700:3037::ac43:b7f3
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=222, name=cloudflare-ech.com
SOA	`ethan.ns.cloudflare.com`dns@cloudflare.com serial=2407529677

`info`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.info.afilias-nst.info` ⭐
	NS	`a2.info.afilias-nst.info`
	NS	`b0.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`b2.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`c0.info.afilias-nst.info`
	NS	`d0.info.afilias-nst.org` ⚠️ Not in parent delegation
	SOA	`a0.info.afilias-nst.info`hostmaster@donuts.email serial=1786246865

Same first word

classgroup.com.au

classgroup.com

classgroup.com.mx

classgroup.info

Similar names

gocarsplus.com

paulgcross.com

grupoclass.com

grupolcsas.com

DNS History

31 records (11 active, 20 former)

●NSethan.ns.cloudflare.com2026-03-26 → 2026-08-09 · 3 obs

○ 2018-07-26 13:49:04
● 2026-03-26 17:07:30
● 2026-08-09 03:57:28

●NSkenia.ns.cloudflare.com2026-03-26 → 2026-08-09 · 3 obs

○ 2018-07-26 13:49:04
● 2026-03-26 17:07:30
● 2026-08-09 03:57:28

○NSns1.exactwebsales.info2008-02-17 → 2008-02-17 · 3 obs

● 2008-02-17 15:30:56
○ 2015-10-30 19:16:34
○ 2026-08-09 03:57:28

○NSns1.natrohost.com2015-10-30 → 2018-07-26 · 5 obs

○ 2008-02-17 15:30:56
● 2015-10-30 19:16:34
● 2018-07-26 13:49:04
○ 2026-03-26 17:07:30
○ 2026-08-09 03:57:28

○NSns2.exactwebsales.info2008-02-17 → 2008-02-17 · 3 obs

● 2008-02-17 15:30:56
○ 2015-10-30 19:16:34
○ 2026-08-09 03:57:28

○NSns2.natrohost.com2015-10-30 → 2018-07-26 · 5 obs

○ 2008-02-17 15:30:56
● 2015-10-30 19:16:34
● 2018-07-26 13:49:04
○ 2026-03-26 17:07:30
○ 2026-08-09 03:57:28

●MXalt1.aspmx.l.google.com2026-03-26 → 2026-08-09 · 3 obs

○ 2015-10-30 19:16:34
● 2026-03-26 17:07:30
● 2026-08-09 03:57:28

●MXalt2.aspmx.l.google.com2026-03-26 → 2026-08-09 · 3 obs

○ 2015-10-30 19:16:34
● 2026-03-26 17:07:30
● 2026-08-09 03:57:28

●MXalt3.aspmx.l.google.com2026-03-26 → 2026-08-09 · 3 obs

○ 2015-10-30 19:16:34
● 2026-03-26 17:07:30
● 2026-08-09 03:57:28

●MXaspmx.l.google.com2026-03-26 → 2026-08-09 · 3 obs

○ 2015-10-30 19:16:34
● 2026-03-26 17:07:30
● 2026-08-09 03:57:28

○MXca.classgroup.info2008-02-17 → 2008-02-17 · 3 obs

● 2008-02-17 15:30:56
○ 2015-10-30 19:16:34
○ 2026-08-09 03:57:28

○MXoc.classgroup.info2008-02-17 → 2008-02-17 · 3 obs

● 2008-02-17 15:30:56
○ 2015-10-30 19:16:34
○ 2026-08-09 03:57:28

○MXpx.classgroup.info2008-02-17 → 2008-02-17 · 3 obs

● 2008-02-17 15:30:56
○ 2015-10-30 19:16:34
○ 2026-08-09 03:57:28

●MXsmtp.google.com2026-03-26 → 2026-08-09 · 3 obs

○ 2015-10-30 19:16:34
● 2026-03-26 17:07:30
● 2026-08-09 03:57:28

●A104.21.18.2442026-03-26 → 2026-08-09 · 6 obs

○ 2018-07-26 13:49:04
● 2026-03-26 17:07:30
○ 2026-07-07 13:18:20
● 2026-07-07 16:48:52
○ 2026-08-04 07:28:22
● 2026-08-09 03:57:28

●A172.67.183.2432026-03-26 → 2026-08-09 · 6 obs

○ 2018-07-26 13:49:04
● 2026-03-26 17:07:30
○ 2026-07-07 13:18:20
● 2026-07-07 16:48:52
○ 2026-08-04 07:28:22
● 2026-08-09 03:57:28

○A188.114.96.02026-07-07 → 2026-08-04 · 5 obs

○ 2026-07-07 13:18:20
● 2026-07-07 15:55:58
○ 2026-07-07 16:48:52
● 2026-08-04 07:28:22
○ 2026-08-09 03:57:28

○A188.114.96.42026-07-07 → 2026-07-07 · 4 obs

○ 2026-07-07 09:23:44
● 2026-07-07 13:18:20
○ 2026-07-07 15:55:58
○ 2026-08-09 03:57:28

○A188.114.97.02026-07-07 → 2026-08-04 · 5 obs

○ 2026-07-07 13:18:20
● 2026-07-07 15:55:58
○ 2026-07-07 16:48:52
● 2026-08-04 07:28:22
○ 2026-08-09 03:57:28

○A188.114.97.42026-07-07 → 2026-07-07 · 4 obs

○ 2026-07-07 09:23:44
● 2026-07-07 13:18:20
○ 2026-07-07 15:55:58
○ 2026-08-09 03:57:28

○A2606:4700:3032::6815:12f42026-03-26 → 2026-04-13 · 5 obs

○ 2018-07-26 13:49:04
● 2026-03-26 17:07:30
● 2026-04-13 09:09:28
○ 2026-07-07 09:23:44
○ 2026-08-09 03:57:28

●A2606:4700:3035::6815:12f42026-07-07 → 2026-08-09 · 6 obs

○ 2026-04-13 09:09:28
● 2026-07-07 09:23:44
○ 2026-07-07 13:18:20
● 2026-07-07 16:48:52
○ 2026-08-04 07:28:22
● 2026-08-09 03:57:28

○A2606:4700:3035::ac43:b7f32026-03-26 → 2026-04-13 · 5 obs

○ 2018-07-26 13:49:04
● 2026-03-26 17:07:30
● 2026-04-13 09:09:28
○ 2026-07-07 09:23:44
○ 2026-08-09 03:57:28

●A2606:4700:3037::ac43:b7f32026-07-07 → 2026-08-09 · 6 obs

○ 2026-04-13 09:09:28
● 2026-07-07 09:23:44
○ 2026-07-07 13:18:20
● 2026-07-07 16:48:52
○ 2026-08-04 07:28:22
● 2026-08-09 03:57:28

○A2a06:98c1:3120::2026-08-04 → 2026-08-04 · 3 obs

○ 2026-07-07 16:48:52
● 2026-08-04 07:28:22
○ 2026-08-09 03:57:28

○A2a06:98c1:3120::42026-07-07 → 2026-07-07 · 4 obs

○ 2026-07-07 09:23:44
● 2026-07-07 13:18:20
○ 2026-07-07 16:48:52
○ 2026-08-09 03:57:28

○A2a06:98c1:3121::2026-08-04 → 2026-08-04 · 3 obs

○ 2026-07-07 16:48:52
● 2026-08-04 07:28:22
○ 2026-08-09 03:57:28

○A2a06:98c1:3121::42026-07-07 → 2026-07-07 · 4 obs

○ 2026-07-07 09:23:44
● 2026-07-07 13:18:20
○ 2026-07-07 16:48:52
○ 2026-08-09 03:57:28

○A85.159.64.42015-10-30 → 2016-05-03 · 4 obs

● 2015-10-30 19:16:34
● 2016-05-03 11:37:00
○ 2017-01-30 11:59:12
○ 2026-08-09 03:57:28

○A85.159.66.622017-01-30 → 2017-01-30 · 4 obs

○ 2016-05-03 11:37:00
● 2017-01-30 11:59:12
○ 2018-07-26 13:49:04
○ 2026-08-09 03:57:28

○A85.159.66.932018-07-26 → 2018-07-26 · 4 obs

○ 2017-01-30 11:59:12
● 2018-07-26 13:49:04
○ 2026-03-26 17:07:30
○ 2026-08-09 03:57:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
info	a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info	-
classgroup.info	ethan.ns.cloudflare.com, kenia.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.93

NS records: ethan.ns.cloudflare.com, kenia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classgroup.info (unsigned zone)

⏱️ Timing

Total: 779ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.18.244, 172.67.183.243`
AAAA	2	`2606:4700:3037::ac43:b7f3, 2606:4700:3035::6815:12f4`
NS	2	`ethan.ns.cloudflare.com, kenia.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ethan.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

classgroup.info points to the four IP addresses 104.21.18.244, 172.67.183.243, 2606:4700:3035::6815:12f4 and 2606:4700:3037::ac43:b7f3.

gamebar.click, cmanama.am.gov.br, enewsletters.biz and two other host names share IP numbers with classgroup.info.

Name Servers

classgroup.info is served by two delegated name servers, ethan.ns.cloudflare.com and kenia.ns.cloudflare.com.

classgroup.info uses the same name servers as several other domains — among them craftgo.com, foxgroup.info, ke2.app and two more.

At least some of classgroup.info's name servers are shared with other domains, for example 279884250.workers.dev, arsdbombers.com, aryogenpharmed.com and two more.

These name servers tend to be deployed in combination with the name servers walk.ns.cloudflare.com and everton.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

ethan.ns.cloudflare.com carries IP addresses 108.162.195.232, 162.159.44.232 and 172.64.35.232, with 3 other addresses beyond those.

kenia.ns.cloudflare.com carries IP addresses 108.162.194.93, 162.159.38.93 and 172.64.34.93, with 3 other addresses beyond those.

Mail Servers

classgroup.info has five mail servers, which are smtp.google.com, aspmx.l.google.com, alt1.aspmx.l.google.com and two others.

classgroup.info has at least partial mail server overlap with other domains such as herfitnesshub.com, appunfold.com, ns500768.ns500698.ns500759.ns500758.ns500759.ns500735.ns500698.ns500576.ns500576.ns500698.ns500576.ns500619.ns500652.ns500576.trackreceptor.com and two more.

These mail servers commonly appear together with alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and two other mail servers.

Hostnames that resolve to 9 IP addresses:

smtp.google.com carries IP addresses 172.253.63.27, 172.253.115.26 and 172.253.122.27, with 6 other addresses beyond those.

Hostnames that resolve to two IP addresses:

aspmx.l.google.com maps to two IP addresses — 142.251.179.26 and 2607:f8b0:4004:c27::1b.

alt1.aspmx.l.google.com maps to two IP addresses — 192.178.234.26 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.27 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com maps to two IP addresses — 192.178.223.27 and 2a00:1450:4009:c0f::1b.