certusstudymanager.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

certusstudymanager.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:5ee5🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:8ce0🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.94.229Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.140.224🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSasa.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3af6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRasa.ns.cloudflare.com
A2803:f800:50::6ca2:c0f6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRasa.ns.cloudflare.com
A2a06:98c1:50::ac40:20f6🇺🇸 Cloudflare2a06:98c1:50::/45
PTRasa.ns.cloudflare.com
A108.162.192.246🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRasa.ns.cloudflare.com
A172.64.32.246🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRasa.ns.cloudflare.com
A173.245.58.246🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRasa.ns.cloudflare.com
NSbrady.ns.cloudflare.com
A2606:4700:58::a29f:2cd7🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrady.ns.cloudflare.com
A2803:f800:50::6ca2:c3d7🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbrady.ns.cloudflare.com
A2a06:98c1:50::ac40:23d7🇺🇸 Cloudflare2a06:98c1:50::/45
PTRbrady.ns.cloudflare.com
A108.162.195.215🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrady.ns.cloudflare.com
A162.159.44.215Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrady.ns.cloudflare.com
A172.64.35.215🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrady.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.94.229, 172.67.140.224
IPv6 hints2606:4700:3031::6815:5ee5, 2606:4700:3033::ac43:8ce0
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=7, name=cloudflare-ech.com
SOAasa.ns.cloudflare.comdns@cloudflare.com serial=2410958826

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=1786898454

Same first word

certusstudymanager.com

DNS History

20 records (6 active, 14 former)

20162017201820192020202120222023202420252026NSasa.ns.cloudflare.combrady.ns.cloudflare.comns51.domaincontrol.comns52.domaincontrol.compdns07.domaincontrol.compdns08.domaincontrol.comMXmailstore1.secureserver.netsmtp.secureserver.netA104.21.94.229172.67.140.2242606:4700:3031::6815:5ee52606:4700:3033::ac43:8ce0184.168.221.93188.114.96.0188.114.97.02606:4700:3034::6815:5ee52606:4700:3034::ac43:8ce02a06:98c1:3120::2a06:98c1:3121::50.63.246.168
●NSasa.ns.cloudflare.com2026-03-26 → 2026-08-16 · 3 obs
○ 2020-01-30 17:57:58
● 2026-03-26 12:11:48
● 2026-08-16 17:07:24
●NSbrady.ns.cloudflare.com2026-03-26 → 2026-08-16 · 3 obs
○ 2020-01-30 17:57:58
● 2026-03-26 12:11:48
● 2026-08-16 17:07:24
○NSns51.domaincontrol.com2015-06-26 → 2015-11-06 · 4 obs
● 2015-06-26 06:31:20
● 2015-11-06 00:45:58
○ 2016-02-04 08:34:28
○ 2026-08-16 17:07:24
○NSns52.domaincontrol.com2015-06-26 → 2015-11-06 · 4 obs
● 2015-06-26 06:31:20
● 2015-11-06 00:45:58
○ 2016-02-04 08:34:28
○ 2026-08-16 17:07:24
○NSpdns07.domaincontrol.com2016-02-04 → 2020-01-30 · 5 obs
○ 2015-11-06 00:45:58
● 2016-02-04 08:34:28
● 2020-01-30 17:57:58
○ 2026-03-26 12:11:48
○ 2026-08-16 17:07:24
○NSpdns08.domaincontrol.com2016-02-04 → 2020-01-30 · 5 obs
○ 2015-11-06 00:45:58
● 2016-02-04 08:34:28
● 2020-01-30 17:57:58
○ 2026-03-26 12:11:48
○ 2026-08-16 17:07:24
○MXmailstore1.secureserver.net2015-06-26 → 2020-01-30 · 4 obs
● 2015-06-26 06:31:20
● 2020-01-30 17:57:58
○ 2026-03-26 12:11:48
○ 2026-08-16 17:07:24
○MXsmtp.secureserver.net2015-06-26 → 2020-01-30 · 4 obs
● 2015-06-26 06:31:20
● 2020-01-30 17:57:58
○ 2026-03-26 12:11:48
○ 2026-08-16 17:07:24
●A104.21.94.2292026-03-26 → 2026-08-16 · 5 obs
○ 2020-01-30 17:57:58
● 2026-03-26 12:11:48
○ 2026-07-13 21:15:32
● 2026-07-20 21:56:04
● 2026-08-16 17:07:24
●A172.67.140.2242026-03-26 → 2026-08-16 · 5 obs
○ 2020-01-30 17:57:58
● 2026-03-26 12:11:48
○ 2026-07-13 21:15:32
● 2026-07-20 21:56:04
● 2026-08-16 17:07:24
○A184.168.221.932016-02-04 → 2020-01-30 · 5 obs
○ 2015-11-06 00:45:58
● 2016-02-04 08:34:28
● 2020-01-30 17:57:58
○ 2026-03-26 12:11:48
○ 2026-08-16 17:07:24
○A188.114.96.02026-07-13 → 2026-07-13 · 4 obs
○ 2026-03-26 12:11:48
● 2026-07-13 21:15:32
○ 2026-07-20 21:56:04
○ 2026-08-16 17:07:24
○A188.114.97.02026-07-13 → 2026-07-13 · 4 obs
○ 2026-03-26 12:11:48
● 2026-07-13 21:15:32
○ 2026-07-20 21:56:04
○ 2026-08-16 17:07:24
●A2606:4700:3031::6815:5ee52026-06-24 → 2026-08-16 · 5 obs
○ 2026-06-14 01:42:34
● 2026-06-24 03:23:22
○ 2026-07-13 21:15:32
● 2026-07-20 21:56:04
● 2026-08-16 17:07:24
●A2606:4700:3033::ac43:8ce02026-06-24 → 2026-08-16 · 5 obs
○ 2026-06-14 01:42:34
● 2026-06-24 03:23:22
○ 2026-07-13 21:15:32
● 2026-07-20 21:56:04
● 2026-08-16 17:07:24
○A2606:4700:3034::6815:5ee52026-03-26 → 2026-06-14 · 5 obs
○ 2020-01-30 17:57:58
● 2026-03-26 12:11:48
● 2026-06-14 01:42:34
○ 2026-06-24 03:23:22
○ 2026-08-16 17:07:24
○A2606:4700:3034::ac43:8ce02026-03-26 → 2026-06-14 · 5 obs
○ 2020-01-30 17:57:58
● 2026-03-26 12:11:48
● 2026-06-14 01:42:34
○ 2026-06-24 03:23:22
○ 2026-08-16 17:07:24
○A2a06:98c1:3120::2026-07-13 → 2026-07-13 · 4 obs
○ 2026-03-26 12:11:48
● 2026-07-13 21:15:32
○ 2026-07-20 21:56:04
○ 2026-08-16 17:07:24
○A2a06:98c1:3121::2026-07-13 → 2026-07-13 · 4 obs
○ 2026-03-26 12:11:48
● 2026-07-13 21:15:32
○ 2026-07-20 21:56:04
○ 2026-08-16 17:07:24
○A50.63.246.1682015-06-26 → 2015-11-06 · 4 obs
● 2015-06-26 06:31:20
● 2015-11-06 00:45:58
○ 2016-02-04 08:34:28
○ 2026-08-16 17:07:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
certusstudymanager.comasa.ns.cloudflare.com, brady.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.215

NS records: asa.ns.cloudflare.com, brady.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 184ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.140.224, 104.21.94.229
AAAA22606:4700:3031::6815:5ee5, 2606:4700:3033::ac43:8ce0
NS2asa.ns.cloudflare.com, brady.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1asa.ns.cloudflare.com dns.cloudflare.com

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

certusstudymanager.com directs to four IP numbers, which are 104.21.94.229, 172.67.140.224, 2606:4700:3031::6815:5ee5 and 2606:4700:3033::ac43:8ce0.

Additional host names — programaparaafiliados.com.br, jerkyfaq.com, futurelane-11.sbs and two others — share IP numbers with certusstudymanager.com.

Name Servers

The NS records for certusstudymanager.com delegate to asa.ns.cloudflare.com and brady.ns.cloudflare.com.

certusstudymanager.com shares its name server setup with other domains, including nhcast.org, epicgame.pl, billionapps.ai and two others.

There is at least partial name server overlap between certusstudymanager.com and other domains — ccody.cyou, xx3544xx.cc, abditogel.info and two more among them.

These name servers frequently co-occur with the name servers lilyana.ns.cloudflare.com and dilbert.ns.cloudflare.com.

Host names with 6 IP numbers:

asa.ns.cloudflare.com maps to 108.162.192.246, 172.64.32.246, 173.245.58.246 and 3 additional IP addresses.

brady.ns.cloudflare.com maps to 108.162.195.215, 162.159.44.215, 172.64.35.215 and 3 additional IP addresses.