classmonitor.com - robtex.com

classmonitor.com

DNSSEC⚠️ Not signed
A144.126.253.177🇮🇳 DIGITALOCEAN144.126.252.0/22 DigitalOcean
NSns1.digitalocean.com ⭐
A2606:4700:52::ac40:34d2🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.digitalocean.com
A172.64.52.210🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.digitalocean.com
NSns2.digitalocean.com
A2606:4700:5a::ac40:3515🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.digitalocean.com
A172.64.53.21🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.digitalocean.com
NSns3.digitalocean.com
A2606:4700:52::ac40:31d1🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns3.digitalocean.com
A172.64.49.209🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns3.digitalocean.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c1b::1b🇺🇸 Google2607:f8b0:4004::/48
PTRwv-in-f27.1e100.net
A192.178.155.26🇺🇸 Google192.178.155.0/24
PTRyuiadrs-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.26🇺🇸 Google172.253.116.0/24
PTRdj-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.27🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f27.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c23::1b🇧🇪 Google2a00:1450:400c::/48
PTRyubrupd-in-f27.1e100.net
A172.253.157.26🇺🇸 Google172.253.0.0/16
PTRyubrupd-in-f26.1e100.net
TXTgoogle-site-verification=cwrrPfTndtdJdfiLa67NO_FrV0WbTDAgV50gxwglqps
TXTv=spf1 include:zeptomail.net ~all
TXTapple-domain-verification=euyoqu0nyu8FnsRC8GYXN-uyKPNNyB7on9Zt3niNr5g
TXTlinkedin-site-verification=4c3dc6e0-a4aa-48a2-8c19-999593fffd62
TXTgoogle-site-verification=VSAuCPfXf4HTKYkDKn9kIPRwraBCtwY7YfKV5Rr6lx8
SOAns1.digitalocean.comhostmaster@classmonitor.com serial=0

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1785688522
📈 Tranco rank: #740,898

Subdomains

newcrm.classmonitor.com

Same first word

classmonitor.in
classmonitor.com

Similar names

mrslotcasino.org
mrslotcasino.se
marscolonist.com

DNS History

14 records (9 active, 5 former)

20162017201820192020202120222023202420252026NSns1.digitalocean.comns2.digitalocean.comns3.digitalocean.comns.buydomains.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA144.126.253.177128.199.206.48139.59.2.1207.148.248.14350.63.202.104
○NSns.buydomains.com2015-06-18 → 2016-02-22 · 4 obs
● 2015-06-18 22:18:34
● 2016-02-22 16:15:14
○ 2016-05-05 13:49:16
○ 2026-08-02 17:02:16
●NSns1.digitalocean.com2016-05-05 → 2026-08-02 · 3 obs
○ 2016-02-22 16:15:14
● 2016-05-05 13:49:16
● 2026-08-02 17:02:16
●NSns2.digitalocean.com2016-05-05 → 2026-08-02 · 3 obs
○ 2016-02-22 16:15:14
● 2016-05-05 13:49:16
● 2026-08-02 17:02:16
●NSns3.digitalocean.com2016-05-05 → 2026-08-02 · 3 obs
○ 2016-02-22 16:15:14
● 2016-05-05 13:49:16
● 2026-08-02 17:02:16
●MXalt1.aspmx.l.google.com2016-05-05 → 2026-08-02 · 2 obs
● 2016-05-05 13:49:16
● 2026-08-02 17:02:16
●MXalt2.aspmx.l.google.com2016-05-05 → 2026-08-02 · 2 obs
● 2016-05-05 13:49:16
● 2026-08-02 17:02:16
●MXalt3.aspmx.l.google.com2016-05-05 → 2026-08-02 · 2 obs
● 2016-05-05 13:49:16
● 2026-08-02 17:02:16
●MXalt4.aspmx.l.google.com2016-05-05 → 2026-08-02 · 2 obs
● 2016-05-05 13:49:16
● 2026-08-02 17:02:16
●MXaspmx.l.google.com2016-05-05 → 2026-08-02 · 2 obs
● 2016-05-05 13:49:16
● 2026-08-02 17:02:16
○A128.199.206.482016-05-05 → 2016-05-05 · 4 obs
○ 2016-02-22 16:15:14
● 2016-05-05 13:49:16
○ 2017-01-28 02:46:10
○ 2026-08-02 17:02:16
○A139.59.2.12017-01-28 → 2017-01-28 · 4 obs
○ 2016-05-05 13:49:16
● 2017-01-28 02:46:10
○ 2026-02-24 17:50:50
○ 2026-08-02 17:02:16
●A144.126.253.1772026-02-24 → 2026-08-02 · 3 obs
○ 2017-01-28 02:46:10
● 2026-02-24 17:50:50
● 2026-08-02 17:02:16
○A207.148.248.1432015-11-14 → 2016-02-22 · 5 obs
○ 2015-06-18 22:18:34
● 2015-11-14 04:28:46
● 2016-02-22 16:15:14
○ 2016-05-05 13:49:16
○ 2026-08-02 17:02:16
○A50.63.202.1042015-06-18 → 2015-06-18 · 3 obs
● 2015-06-18 22:18:34
○ 2015-11-14 04:28:46
○ 2026-08-02 17:02:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
classmonitor.comns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com3 records

✅ Authoritative Response

Server:172.64.49.209

NS records: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classmonitor.com (unsigned zone)

⏱️ Timing

Total: 251ms | Queries: -

📄 Records

TypeCountSample Data
A1144.126.253.177
NS3ns3.digitalocean.com, ns1.digitalocean.com...
MX5alt3.aspmx.l.google.com (pri: 10), aspmx.l.google.com (pri: 1)...
TXT5v=spf1 include:zeptomail.net ~all, linkedin-site-verification=4c3dc6e0-a4aa...
SOA1ns1.digitalocean.com hostmaster.classmon

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com)

Analysis

Hierarchy

classmonitor.com is the parent zone for newcrm.classmonitor.com.

IP Addresses

classmonitor.com points to a single IP number: 144.126.253.177.

classmoniter.com is an example of another host name that shares IP numbers with classmonitor.com.

Name Servers

classmonitor.com has three name servers — ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.

classmonitor.com partially shares its NS delegation with several other domains, including mensajero.pro, btf.sh, jkelsberry.com and two others.

Each of ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com points to two IP numbers. ns1.digitalocean.com points to 172.64.52.210 and 2606:4700:52::ac40:34d2. ns2.digitalocean.com points to 172.64.53.21 and 2606:4700:5a::ac40:3515. ns3.digitalocean.com points to 172.64.49.209 and 2606:4700:52::ac40:31d1.

Mail Servers

Mail for classmonitor.com is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

classmonitor.com shares mail servers — at least in part — with other domains, including payabel.co.uk, ns500699.ns500699.ns500693.ns500734.ns500734.ns500728.ns500699.ns500588.ns500683.ns500683.ns500588.ns500699.ns500693.ns500632.ns500110.dtrkdll.com, ns500698.ns500698.ns500698.ns500758.ns500758.ns500758.ns500736.ns500698.ns500698.ns500735.ns500576.ns500698.ns500576.ns500686.ns500619.ns500576.trackreceptor.com and two others.

These mail servers are frequently paired with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com resolves to 192.178.155.26 and 2607:f8b0:4004:c1b::1b.

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

alt2.aspmx.l.google.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com resolves to 192.178.223.27 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com resolves to 172.253.157.26 and 2a00:1450:400c:c23::1b.