courses.technology - dns.ninja

courses.technology

DNSSEC🔒 Signed (DS record present)
A2606:4700:3035::6815:424🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:839d🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.4.36Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.131.157🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NShattie.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26ac🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhattie.ns.cloudflare.com
A2803:f800:50::6ca2:c2ac🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRhattie.ns.cloudflare.com
A2a06:98c1:50::ac40:22ac🇺🇸 Cloudflare2a06:98c1:50::/45
PTRhattie.ns.cloudflare.com
A108.162.194.172🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhattie.ns.cloudflare.com
A162.159.38.172Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhattie.ns.cloudflare.com
A172.64.34.172🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhattie.ns.cloudflare.com
NSsri.ns.cloudflare.com
A2606:4700:58::adf5:3bea🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsri.ns.cloudflare.com
A2803:f800:50::6ca2:c1ea🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsri.ns.cloudflare.com
A2a06:98c1:50::ac40:21ea🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsri.ns.cloudflare.com
A108.162.193.234🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsri.ns.cloudflare.com
A172.64.33.234🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsri.ns.cloudflare.com
A173.245.59.234🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsri.ns.cloudflare.com
TXTafternic-verification-fFzPasmUjVpZxFgieVfZEe
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.4.36, 172.67.131.157
IPv6 hints2606:4700:3035::6815:424, 2606:4700:3037::ac43:839d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=98, name=cloudflare-ech.com
SOAhattie.ns.cloudflare.comdns@cloudflare.com serial=2411445265

technology

DNSSEC🔒 Signed (DS record present)
NSv0n0.nic.technology ⭐
NSv0n1.nic.technology
NSv0n2.nic.technology
NSv0n3.nic.technology
NSv2n0.nic.technology
NSv2n1.nic.technology
SOAv0n0.nic.technologyhostmaster@donuts.email serial=1786750803

Same first word

courses.se
courses.cn
courses.org
courses.dk
courses.bio
courses.agency
courses.ist
courses.guru
courses.kz
courses.eu
courses.co.uk
courses.bg
courses.kg
courses.capetown
courses.company
courses.net.au
courses.de
courses.es
courses.ie
courses.be
courses.cz
courses.durban
courses.co.kr
courses.asia
courses
courses.ge
courses.technology
courses.yolasite.com
courses.su
courses.camp
courses.istanbul
courses.com
courses.casino
courses.zone
courses.net.ua
courses.work
courses.edu
courses.at
courses.me
courses.ca
courses.wiki
courses.today
courses.school
courses.com.au
courses.tv
courses.forum
courses.courses
courses.ch
courses.world
courses.co
courses.com.ph
courses.plus
courses.ro
courses.neustar
courses.us
courses.nl
courses.store
courses.biz
courses.it
courses.ae
courses.media
courses.education

Similar names

sources.net
crousse.com.ar
sources.ws
ecoruss.ru
securos.com
secours.ca
sucrose.hatenablog.com
sources.it
croesus.ru
scouser.dk
croesus.it
securos.se
croesus.com.my
sources.dk
sources.cn
sources.ru
secours.net
sources.nl
sources.eu
sosecur.com
secours.gov.gn
securos.org.ua
scouser.net
sources.network
scoresu.me
secours.info
sucrose.com
sceuros.com
scseuro.de
ssource.com
sources.net.ar
croesus.de
cosesur.com
sources.com
croesus.ca
sucesor.com
croesus.fr
sources.ca
scouser.com
suresco.es
sources.fr
secosur.com.mx
croesus.net
sources.ch
coursse.com
sources.hu
cousers.com
sources.co.uk
sources.pl
sources.one
ecursos.es
croesus.com.tw
croesus.com
sorescu.eu
ecursos.herokuapp.com
roussec.kasserver.com
sources.com.sa
sources.download
sources.news
rescous.com
sources.biz
ecursos.cl
croesus.eu
secours.nl
resusco.com
sucrose.de

DNS History

31 records (6 active, 25 former)

2017201820192020202120222023202420252026NShattie.ns.cloudflare.comsri.ns.cloudflare.comns1.undeveloped.comns1.uniregistry-dns.comns1.uniregistry-dns.netns1.uniregistrymarket.linkns2.undeveloped.comns2.uniregistry-dns.comns2.uniregistry-dns.netns2.uniregistrymarket.linkMXmx247.in-mx.commx247.in-mx.netroute1.mx.cloudflare.netroute2.mx.cloudflare.netroute3.mx.cloudflare.netA104.21.4.36172.67.131.1572606:4700:3035::6815:4242606:4700:3037::ac43:839d162.242.150.89176.34.241.253188.114.96.0188.114.97.023.253.58.2272606:4700:3033::6815:4242606:4700:3036::ac43:839d2a05:d014:9da:8c10:306e:3e07:a16f:a5522a06:98c1:3120::2a06:98c1:3121::52.58.78.1669.172.201.153
●NShattie.ns.cloudflare.com2026-02-16 → 2026-08-15 · 3 obs
○ 2020-05-12 11:08:06
● 2026-02-16 13:57:08
● 2026-08-15 00:17:26
○NSns1.undeveloped.com2019-08-11 → 2019-08-23 · 5 obs
○ 2017-12-18 04:48:04
● 2019-08-11 10:50:58
● 2019-08-23 04:52:40
○ 2019-10-23 14:55:20
○ 2026-08-15 00:17:26
○NSns1.uniregistry-dns.com2020-03-22 → 2020-05-12 · 5 obs
○ 2019-11-01 20:30:28
● 2020-03-22 03:19:58
● 2020-05-12 11:08:06
○ 2026-02-16 13:57:08
○ 2026-08-15 00:17:26
○NSns1.uniregistry-dns.net2020-03-22 → 2020-05-12 · 5 obs
○ 2019-11-01 20:30:28
● 2020-03-22 03:19:58
● 2020-05-12 11:08:06
○ 2026-02-16 13:57:08
○ 2026-08-15 00:17:26
○NSns1.uniregistrymarket.link2016-12-10 → 2019-11-01 · 8 obs
● 2016-12-10 20:48:08
● 2017-12-18 04:48:04
○ 2019-08-11 10:50:58
○ 2019-08-23 04:52:40
● 2019-10-23 14:55:20
● 2019-11-01 20:30:28
○ 2020-03-22 03:19:58
○ 2026-08-15 00:17:26
○NSns2.undeveloped.com2019-08-11 → 2019-08-23 · 5 obs
○ 2017-12-18 04:48:04
● 2019-08-11 10:50:58
● 2019-08-23 04:52:40
○ 2019-10-23 14:55:20
○ 2026-08-15 00:17:26
○NSns2.uniregistry-dns.com2020-03-22 → 2020-05-12 · 5 obs
○ 2019-11-01 20:30:28
● 2020-03-22 03:19:58
● 2020-05-12 11:08:06
○ 2026-02-16 13:57:08
○ 2026-08-15 00:17:26
○NSns2.uniregistry-dns.net2020-03-22 → 2020-05-12 · 5 obs
○ 2019-11-01 20:30:28
● 2020-03-22 03:19:58
● 2020-05-12 11:08:06
○ 2026-02-16 13:57:08
○ 2026-08-15 00:17:26
○NSns2.uniregistrymarket.link2016-12-10 → 2019-11-01 · 8 obs
● 2016-12-10 20:48:08
● 2017-12-18 04:48:04
○ 2019-08-11 10:50:58
○ 2019-08-23 04:52:40
● 2019-10-23 14:55:20
● 2019-11-01 20:30:28
○ 2020-03-22 03:19:58
○ 2026-08-15 00:17:26
●NSsri.ns.cloudflare.com2026-02-16 → 2026-08-15 · 3 obs
○ 2020-05-12 11:08:06
● 2026-02-16 13:57:08
● 2026-08-15 00:17:26
○MXmx247.in-mx.com2019-10-23 → 2019-11-01 · 4 obs
● 2019-10-23 14:55:20
● 2019-11-01 20:30:28
○ 2020-03-22 03:19:58
○ 2026-08-15 00:17:26
○MXmx247.in-mx.net2019-10-23 → 2019-11-01 · 4 obs
● 2019-10-23 14:55:20
● 2019-11-01 20:30:28
○ 2020-03-22 03:19:58
○ 2026-08-15 00:17:26
○MXroute1.mx.cloudflare.net2026-02-16 → 2026-05-19 · 5 obs
○ 2020-03-22 03:19:58
● 2026-02-16 13:57:08
● 2026-05-19 06:27:36
○ 2026-05-25 07:40:02
○ 2026-08-15 00:17:26
○MXroute2.mx.cloudflare.net2026-02-16 → 2026-05-19 · 5 obs
○ 2020-03-22 03:19:58
● 2026-02-16 13:57:08
● 2026-05-19 06:27:36
○ 2026-05-25 07:40:02
○ 2026-08-15 00:17:26
○MXroute3.mx.cloudflare.net2026-02-16 → 2026-05-19 · 5 obs
○ 2020-03-22 03:19:58
● 2026-02-16 13:57:08
● 2026-05-19 06:27:36
○ 2026-05-25 07:40:02
○ 2026-08-15 00:17:26
●A104.21.4.362026-02-16 → 2026-08-15 · 13 obs
○ 2020-05-12 11:08:06
● 2026-02-16 13:57:08
● 2026-02-16 16:45:04
○ 2026-03-18 02:15:08
● 2026-03-27 02:54:58
● 2026-04-02 13:17:42
○ 2026-04-03 18:25:12
● 2026-04-17 01:17:28
● 2026-06-15 07:51:14
○ 2026-06-15 10:19:14
● 2026-07-17 06:06:22
○ 2026-08-13 23:46:00
● 2026-08-15 00:17:26
○A162.242.150.892020-03-22 → 2020-05-12 · 5 obs
○ 2019-11-01 20:30:28
● 2020-03-22 03:19:58
● 2020-05-12 11:08:06
○ 2026-02-16 13:57:08
○ 2026-08-15 00:17:26
●A172.67.131.1572026-02-16 → 2026-08-15 · 13 obs
○ 2020-05-12 11:08:06
● 2026-02-16 13:57:08
● 2026-02-16 16:45:04
○ 2026-03-18 02:15:08
● 2026-03-27 02:54:58
● 2026-04-02 13:17:42
○ 2026-04-03 18:25:12
● 2026-04-17 01:17:28
● 2026-06-15 07:51:14
○ 2026-06-15 10:19:14
● 2026-07-17 06:06:22
○ 2026-08-13 23:46:00
● 2026-08-15 00:17:26
○A176.34.241.2532020-03-22 → 2020-05-12 · 5 obs
○ 2019-11-01 20:30:28
● 2020-03-22 03:19:58
● 2020-05-12 11:08:06
○ 2026-02-16 13:57:08
○ 2026-08-15 00:17:26
○A188.114.96.02026-03-18 → 2026-08-13 · 11 obs
○ 2026-02-16 16:45:04
● 2026-03-18 02:15:08
○ 2026-03-27 02:54:58
○ 2026-04-02 13:17:42
● 2026-04-03 18:25:12
○ 2026-04-17 01:17:28
○ 2026-06-15 07:51:14
● 2026-06-15 10:19:14
○ 2026-07-17 06:06:22
● 2026-08-13 23:46:00
○ 2026-08-15 00:17:26
○A188.114.97.02026-03-18 → 2026-08-13 · 11 obs
○ 2026-02-16 16:45:04
● 2026-03-18 02:15:08
○ 2026-03-27 02:54:58
○ 2026-04-02 13:17:42
● 2026-04-03 18:25:12
○ 2026-04-17 01:17:28
○ 2026-06-15 07:51:14
● 2026-06-15 10:19:14
○ 2026-07-17 06:06:22
● 2026-08-13 23:46:00
○ 2026-08-15 00:17:26
○A23.253.58.2272020-03-22 → 2020-05-12 · 5 obs
○ 2019-11-01 20:30:28
● 2020-03-22 03:19:58
● 2020-05-12 11:08:06
○ 2026-02-16 13:57:08
○ 2026-08-15 00:17:26
○A2606:4700:3033::6815:4242026-02-16 → 2026-06-15 · 11 obs
○ 2020-05-12 11:08:06
● 2026-02-16 13:57:08
● 2026-02-16 16:45:04
○ 2026-03-18 02:15:08
● 2026-03-27 02:54:58
● 2026-04-02 13:17:42
○ 2026-04-03 18:25:12
● 2026-04-17 01:17:28
● 2026-06-15 07:51:14
○ 2026-06-15 10:19:14
○ 2026-08-15 00:17:26
●A2606:4700:3035::6815:4242026-07-17 → 2026-08-15 · 4 obs
○ 2026-06-15 10:19:14
● 2026-07-17 06:06:22
○ 2026-08-13 23:46:00
● 2026-08-15 00:17:26
○A2606:4700:3036::ac43:839d2026-02-16 → 2026-06-15 · 11 obs
○ 2020-05-12 11:08:06
● 2026-02-16 13:57:08
● 2026-02-16 16:45:04
○ 2026-03-18 02:15:08
● 2026-03-27 02:54:58
● 2026-04-02 13:17:42
○ 2026-04-03 18:25:12
● 2026-04-17 01:17:28
● 2026-06-15 07:51:14
○ 2026-06-15 10:19:14
○ 2026-08-15 00:17:26
●A2606:4700:3037::ac43:839d2026-07-17 → 2026-08-15 · 4 obs
○ 2026-06-15 10:19:14
● 2026-07-17 06:06:22
○ 2026-08-13 23:46:00
● 2026-08-15 00:17:26
○A2a05:d014:9da:8c10:306e:3e07:a16f:a5522019-08-11 → 2019-08-23 · 5 obs
○ 2017-12-18 04:48:04
● 2019-08-11 10:50:58
● 2019-08-23 04:52:40
○ 2019-10-23 14:55:20
○ 2026-08-15 00:17:26
○A2a06:98c1:3120::2026-03-18 → 2026-08-13 · 11 obs
○ 2026-02-16 16:45:04
● 2026-03-18 02:15:08
○ 2026-03-27 02:54:58
○ 2026-04-02 13:17:42
● 2026-04-03 18:25:12
○ 2026-04-17 01:17:28
○ 2026-06-15 07:51:14
● 2026-06-15 10:19:14
○ 2026-07-17 06:06:22
● 2026-08-13 23:46:00
○ 2026-08-15 00:17:26
○A2a06:98c1:3121::2026-03-18 → 2026-08-13 · 11 obs
○ 2026-02-16 16:45:04
● 2026-03-18 02:15:08
○ 2026-03-27 02:54:58
○ 2026-04-02 13:17:42
● 2026-04-03 18:25:12
○ 2026-04-17 01:17:28
○ 2026-06-15 07:51:14
● 2026-06-15 10:19:14
○ 2026-07-17 06:06:22
● 2026-08-13 23:46:00
○ 2026-08-15 00:17:26
○A52.58.78.162019-08-11 → 2019-08-23 · 5 obs
○ 2017-12-18 04:48:04
● 2019-08-11 10:50:58
● 2019-08-23 04:52:40
○ 2019-10-23 14:55:20
○ 2026-08-15 00:17:26
○A69.172.201.1532016-12-10 → 2019-11-01 · 8 obs
● 2016-12-10 20:48:08
● 2017-12-18 04:48:04
○ 2019-08-11 10:50:58
○ 2019-08-23 04:52:40
● 2019-10-23 14:55:20
● 2019-11-01 20:30:28
○ 2020-03-22 03:19:58
○ 2026-08-15 00:17:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
technologyv0n3.nic.technology, v0n1.nic.technology, v2n1.nic.technology, v0n2.nic.technology...12 records
courses.technologysri.ns.cloudflare.com, hattie.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.234

NS records: sri.ns.cloudflare.com, hattie.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 514ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.4.36, 172.67.131.157
AAAA22606:4700:3037::ac43:839d, 2606:4700:3035::6815:424
NS2hattie.ns.cloudflare.com, sri.ns.cloudflare.com
TXT1afternic-verification-fFzPasmUjVpZxFgieV
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1hattie.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n3.nic.technology, v0n3.nic.technology, v0n1.nic.technology...)

Analysis

IP Addresses

courses.technology points to the four IP addresses 104.21.4.36, 172.67.131.157, 2606:4700:3035::6815:424 and 2606:4700:3037::ac43:839d.

www.stairwayto11.com, vibeisland.app, www.travelerstoday.com and two other host names share IP numbers with courses.technology.

Name Servers

Two name servers handle the delegation for courses.technology: hattie.ns.cloudflare.com and sri.ns.cloudflare.com.

courses.technology uses the same name servers as several other domains — among them moneygift.com, lookanywhere.com, yourfood.com and two more.

The name servers of courses.technology overlap at least partially with those of other domains — among them garretflow.click, onsemi.cn, tcmanagement.se and two more.

The name servers khalid.ns.cloudflare.com, jakub.ns.cloudflare.com and paige.ns.cloudflare.com are commonly seen alongside these name servers.

Hostnames that resolve to 6 IP addresses:

hattie.ns.cloudflare.com resolves to 108.162.194.172, 162.159.38.172 and 172.64.34.172 among others, with 3 other IP addresses in total.

sri.ns.cloudflare.com resolves to 108.162.193.234, 172.64.33.234 and 173.245.59.234 among others, with 3 other IP addresses in total.