classgroup.info - robtex.com

classgroup.info

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:12f4🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:b7f3🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.18.244Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.183.243🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSethan.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2ce8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRethan.ns.cloudflare.com
A2803:f800:50::6ca2:c3e8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRethan.ns.cloudflare.com
A2a06:98c1:50::ac40:23e8🇺🇸 Cloudflare2a06:98c1:50::/45
PTRethan.ns.cloudflare.com
A108.162.195.232🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRethan.ns.cloudflare.com
A162.159.44.232Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRethan.ns.cloudflare.com
A172.64.35.232🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRethan.ns.cloudflare.com
NSkenia.ns.cloudflare.com
A2606:4700:50::a29f:265d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkenia.ns.cloudflare.com
A2803:f800:50::6ca2:c25d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkenia.ns.cloudflare.com
A2a06:98c1:50::ac40:225d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkenia.ns.cloudflare.com
A108.162.194.93🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkenia.ns.cloudflare.com
A162.159.38.93Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkenia.ns.cloudflare.com
A172.64.34.93🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkenia.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4023:c06::1a🇺🇸 Google2607:f8b0::/32
PTRdz-in-f26.1e100.net
A74.125.137.26🇺🇸 Google74.125.137.0/24
PTRdy-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2a00:1450:4025:402::1a🇳🇱 Google2a00:1450:4025::/48
PTRrb-in-f26.1e100.net
A142.250.102.26🇺🇸 Google142.250.102.0/24
PTRrb-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1b🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f27.1e100.net
A172.253.116.26🇺🇸 Google172.253.116.0/24
PTRdj-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4023:3003::1a🇺🇸 Google2607:f8b0::/32
PTRyulnkjt-in-f26.1e100.net
A172.253.145.26🇺🇸 Google172.253.145.0/24
PTRyulnkjt-in-f26.1e100.net
MXsmtp.google.com(10)
A2607:f8b0:4004:c08::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbi-in-f26.1e100.net
A2607:f8b0:4004:c08::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbi-in-f27.1e100.net
A2607:f8b0:4004:c09::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbh-in-f27.1e100.net
A2607:f8b0:4004:c0b::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbj-in-f27.1e100.net
A142.250.31.26🇺🇸 Google142.250.31.0/24
PTRbj-in-f26.1e100.net
A142.250.31.27🇺🇸 Google142.250.31.0/24
PTRbj-in-f27.1e100.net
A172.253.63.26🇺🇸 Google172.253.63.0/24
PTRbi-in-f26.1e100.net
A172.253.63.27🇺🇸 Google172.253.63.0/24
PTRbi-in-f27.1e100.net
A172.253.122.27🇺🇸 Google172.253.122.0/24
PTRbh-in-f27.1e100.net
TXTv=spf1 include:_spf.google.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.18.244, 172.67.183.243
IPv62606:4700:3032::6815:12f4, 2606:4700:3035::ac43:b7f3
SOAethan.ns.cloudflare.comdns@cloudflare.com serial=2397371136

info

DNSSEC🔒 Signed (DS record present)
NSa0.info.afilias-nst.info ⭐
NSa2.info.afilias-nst.info
NSb0.info.afilias-nst.org ⚠️ Not in parent delegation
NSb2.info.afilias-nst.org ⚠️ Not in parent delegation
NSc0.info.afilias-nst.info
NSd0.info.afilias-nst.org ⚠️ Not in parent delegation
SOAa0.info.afilias-nst.infohostmaster@donuts.email serial=1774676068

Same first word

classgroup.com.au
classgroup.com
classgroup.com.mx
classgroup.info

Similar names

paulgcross.com
grupoclass.com
grupolcsas.com

DNS History

21 records (11 active, 10 former)

200920112013201520172019202120232025NSethan.ns.cloudflare.comkenia.ns.cloudflare.comns1.exactwebsales.infons1.natrohost.comns2.exactwebsales.infons2.natrohost.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comaspmx.l.google.comsmtp.google.comca.classgroup.infooc.classgroup.infopx.classgroup.infoA104.21.18.244172.67.183.2432606:4700:3032::6815:12f42606:4700:3035::ac43:b7f385.159.64.485.159.66.6285.159.66.93
●NSethan.ns.cloudflare.com2026-03-26 → 2026-03-28 · 3 obs
○ 2018-07-26 13:49:04
● 2026-03-26 17:07:30
● 2026-03-28 06:02:00
●NSkenia.ns.cloudflare.com2026-03-26 → 2026-03-28 · 3 obs
○ 2018-07-26 13:49:04
● 2026-03-26 17:07:30
● 2026-03-28 06:02:00
○NSns1.exactwebsales.info2008-02-17 → 2008-02-17 · 3 obs
● 2008-02-17 15:30:56
○ 2015-10-30 19:16:34
○ 2026-03-28 06:02:00
○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
○ 2026-03-28 06:02:00
○NSns2.exactwebsales.info2008-02-17 → 2008-02-17 · 3 obs
● 2008-02-17 15:30:56
○ 2015-10-30 19:16:34
○ 2026-03-28 06:02:00
○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
○ 2026-03-28 06:02:00
●MXalt1.aspmx.l.google.com2026-03-26 → 2026-03-28 · 3 obs
○ 2015-10-30 19:16:34
● 2026-03-26 17:07:30
● 2026-03-28 06:02:00
●MXalt2.aspmx.l.google.com2026-03-26 → 2026-03-28 · 3 obs
○ 2015-10-30 19:16:34
● 2026-03-26 17:07:30
● 2026-03-28 06:02:00
●MXalt3.aspmx.l.google.com2026-03-26 → 2026-03-28 · 3 obs
○ 2015-10-30 19:16:34
● 2026-03-26 17:07:30
● 2026-03-28 06:02:00
●MXaspmx.l.google.com2026-03-26 → 2026-03-28 · 3 obs
○ 2015-10-30 19:16:34
● 2026-03-26 17:07:30
● 2026-03-28 06:02:00
○MXca.classgroup.info2008-02-17 → 2008-02-17 · 3 obs
● 2008-02-17 15:30:56
○ 2015-10-30 19:16:34
○ 2026-03-28 06:02:00
○MXoc.classgroup.info2008-02-17 → 2008-02-17 · 3 obs
● 2008-02-17 15:30:56
○ 2015-10-30 19:16:34
○ 2026-03-28 06:02:00
○MXpx.classgroup.info2008-02-17 → 2008-02-17 · 3 obs
● 2008-02-17 15:30:56
○ 2015-10-30 19:16:34
○ 2026-03-28 06:02:00
●MXsmtp.google.com2026-03-26 → 2026-03-28 · 3 obs
○ 2015-10-30 19:16:34
● 2026-03-26 17:07:30
● 2026-03-28 06:02:00
●A104.21.18.2442026-03-26 → 2026-03-28 · 3 obs
○ 2018-07-26 13:49:04
● 2026-03-26 17:07:30
● 2026-03-28 06:02:00
●A172.67.183.2432026-03-26 → 2026-03-28 · 3 obs
○ 2018-07-26 13:49:04
● 2026-03-26 17:07:30
● 2026-03-28 06:02:00
●A2606:4700:3032::6815:12f42026-03-26 → 2026-03-28 · 3 obs
○ 2018-07-26 13:49:04
● 2026-03-26 17:07:30
● 2026-03-28 06:02:00
●A2606:4700:3035::ac43:b7f32026-03-26 → 2026-03-28 · 3 obs
○ 2018-07-26 13:49:04
● 2026-03-26 17:07:30
● 2026-03-28 06:02:00
○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
○ 2026-03-28 06:02:00
○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
○ 2026-03-28 06:02:00
○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
○ 2026-03-28 06:02:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
infoc0.info.afilias-nst.info, a0.info.afilias-nst.info, a2.info.afilias-nst.info-
classgroup.infoethan.ns.cloudflare.com, kenia.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.194.93

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: 487ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.18.244, 172.67.183.243
AAAA22606:4700:3032::6815:12f4, 2606:4700:3035::ac43:b7f3
NS2ethan.ns.cloudflare.com, kenia.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT1v=spf1 include:_spf.google.com ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1ethan.ns.cloudflare.com dns.cloudflare.c

Analysis

IP Addresses

classgroup.info points to four IP numbers: 2606:4700:3032::6815:12f4, 2606:4700:3035::ac43:b7f3, 104.21.18.244 and 172.67.183.243.

Other host names, for instance jd.dxbbm.com, mail.mechanicalboost.com, xuebbs.com, southwarkhomesearch.org.uk and gazbhoy.co.uk share IP numbers with classgroup.info.

Name Servers

classgroup.info's delegation is to two name servers ethan.ns.cloudflare.com and kenia.ns.cloudflare.com.

classgroup.info shares the same name server configuration as other domains, such as foxgroup.info, ke2.app, beem-project.com, outmsg.com and xjdjsjzbzi.shop.

classgroup.info at least partially shares its name servers with other domains, for instance bjlxhtsm.com, aryogenpharmed.com, nso.hu, rclwiring.com and ugcph.fr.

These name servers are often used together with the name servers kami.ns.cloudflare.com.

Host names with six IP numbers:

ethan.ns.cloudflare.com points to: 2606:4700:58::a29f:2ce8, 2803:f800:50::6ca2:c3e8, 2a06:98c1:50::ac40:23e8, 108.162.195.232, 162.159.44.232 and 172.64.35.232.

kenia.ns.cloudflare.com points to: 2606:4700:50::a29f:265d, 2803:f800:50::6ca2:c25d, 2a06:98c1:50::ac40:225d, 108.162.194.93, 162.159.38.93 and 172.64.34.93.

Mail Servers

Five mail servers handle classgroup.info: smtp.google.com, aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and alt3.aspmx.l.google.com.

classgroup.info shares some mail servers with other domains, including herfitnesshub.com, appunfold.com, ns500768.ns500698.ns500759.ns500758.ns500759.ns500735.ns500698.ns500576.ns500576.ns500698.ns500576.ns500619.ns500652.ns500576.trackreceptor.com, ns500758.ns500759.ns500759.ns500758.ns500759.ns500736.ns500698.ns500576.ns500708.ns500576.ns500576.ns500708.trackreceptor.com and ns500698.ns500698.ns500758.ns500758.ns500758.ns500735.ns500736.ns500735.ns500735.ns500698.ns500735.ns500708.ns500708.ns500652.trackreceptor.com.

These mail servers are commonly used with alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with nine IP numbers:

smtp.google.com points to: 2607:f8b0:4004:c08::1a, 2607:f8b0:4004:c08::1b, 2607:f8b0:4004:c09::1b, 2607:f8b0:4004:c0b::1b, 142.250.31.26, 142.250.31.27, 172.253.63.26, 172.253.63.27 and 172.253.122.27.

Host names with two IP numbers:

aspmx.l.google.com points to: 2607:f8b0:4023:c06::1a and 74.125.137.26; alt1.aspmx.l.google.com points to: 2a00:1450:4025:402::1a and 142.250.102.26; alt2.aspmx.l.google.com points to: 2a00:1450:400b:c02::1b and 172.253.116.26; alt3.aspmx.l.google.com points to: 2607:f8b0:4023:3003::1a and 172.253.145.26.