offcourse.be - dns.ninja

offcourse.be

DNSSEC🔒 Signed (DS record present)
A2606:4700:3034::ac43:ba8d🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:5c33🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.92.51Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.186.141🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScolin.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c4b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcolin.ns.cloudflare.com
A2803:f800:50::6ca2:c34b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcolin.ns.cloudflare.com
A2a06:98c1:50::ac40:234b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcolin.ns.cloudflare.com
A108.162.195.75🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcolin.ns.cloudflare.com
A162.159.44.75Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcolin.ns.cloudflare.com
A172.64.35.75🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcolin.ns.cloudflare.com
NSlaylah.ns.cloudflare.com
A2606:4700:50::a29f:26e6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlaylah.ns.cloudflare.com
A2803:f800:50::6ca2:c2e6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlaylah.ns.cloudflare.com
A2a06:98c1:50::ac40:22e6🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlaylah.ns.cloudflare.com
A108.162.194.230🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlaylah.ns.cloudflare.com
A162.159.38.230Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlaylah.ns.cloudflare.com
A172.64.34.230🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlaylah.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.92.51, 172.67.186.141
IPv6 hints2606:4700:3034::ac43:ba8d, 2606:4700:3035::6815:5c33
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=210, name=cloudflare-ech.com
SOAcolin.ns.cloudflare.comdns@cloudflare.com serial=2406649469

be

DNSSEC🔒 Signed (DS record present)
NSa.nsset.be ⭐
NSb.nsset.be
NSc.nsset.be
NSd.nsset.be
NSy.nsset.be
NSz.nsset.be
SOAa.nsset.bebe-hostmaster@dnsbelgium.be serial=1028250351

Same first word

offcourse.io
offcourse.dk
offcourse.bike
offcourse.se
offcourse.no
offcourse.biz
offcourse.be
offcourse.com
offcourse.ca
offcourse.de
offcourse.jp
offcourse.in
offcourse.co
offcourse.nl
offcourse.org
offcourse.golf
offcourse.com.tr

Similar names

freofocus.com.au
forefocus.com
offsource.com
freofocus.com
courseoff.com

DNS History

25 records (6 active, 19 former)

20162017201820192020202120222023202420252026NScolin.ns.cloudflare.comlaylah.ns.cloudflare.commary.ns.cloudflare.comns01.one.comns02.one.comsam.ns.cloudflare.comsuske.beneluxbusinesscenter.beuriel.beneluxbusinesscenter.bewiske.beneluxbusinesscenter.beMXmail1.beneluxbusinesscenter.bemail2.beneluxbusinesscenter.bemxcluster1.one.commxcluster2.one.comA104.21.92.51172.67.186.1412606:4700:3034::ac43:ba8d2606:4700:3035::6815:5c33104.28.18.172104.28.19.172172.64.80.12606:4700:130:436c:6f75:6466:6c61:726546.30.211.22246.30.211.3246.30.213.5578.47.8.218
●NScolin.ns.cloudflare.com2026-02-17 → 2026-06-21 · 3 obs
○ 2017-05-16 00:29:14
● 2026-02-17 11:11:46
● 2026-06-21 14:06:16
●NSlaylah.ns.cloudflare.com2026-02-17 → 2026-06-21 · 3 obs
○ 2017-05-16 00:29:14
● 2026-02-17 11:11:46
● 2026-06-21 14:06:16
○NSmary.ns.cloudflare.com2015-11-05 → 2016-03-26 · 7 obs
○ 2015-07-02 14:34:30
● 2015-11-05 18:31:46
○ 2015-12-02 03:50:28
● 2016-02-23 13:33:38
● 2016-03-26 06:11:06
○ 2016-04-16 12:51:48
○ 2026-06-21 14:06:16
○NSns01.one.com2016-04-16 → 2017-04-27 · 5 obs
○ 2016-03-26 06:11:06
● 2016-04-16 12:51:48
● 2017-04-27 23:16:48
○ 2017-05-16 00:29:14
○ 2026-06-21 14:06:16
○NSns02.one.com2016-04-16 → 2017-04-27 · 5 obs
○ 2016-03-26 06:11:06
● 2016-04-16 12:51:48
● 2017-04-27 23:16:48
○ 2017-05-16 00:29:14
○ 2026-06-21 14:06:16
○NSsam.ns.cloudflare.com2015-11-05 → 2016-03-26 · 7 obs
○ 2015-07-02 14:34:30
● 2015-11-05 18:31:46
○ 2015-12-02 03:50:28
● 2016-02-23 13:33:38
● 2016-03-26 06:11:06
○ 2016-04-16 12:51:48
○ 2026-06-21 14:06:16
○NSsuske.beneluxbusinesscenter.be2015-07-02 → 2015-07-02 · 3 obs
● 2015-07-02 14:34:30
○ 2015-11-05 18:31:46
○ 2026-06-21 14:06:16
○NSuriel.beneluxbusinesscenter.be2015-07-02 → 2015-07-02 · 3 obs
● 2015-07-02 14:34:30
○ 2015-11-05 18:31:46
○ 2026-06-21 14:06:16
○NSwiske.beneluxbusinesscenter.be2015-07-02 → 2015-07-02 · 3 obs
● 2015-07-02 14:34:30
○ 2015-11-05 18:31:46
○ 2026-06-21 14:06:16
○MXmail1.beneluxbusinesscenter.be2015-07-02 → 2016-03-26 · 7 obs
● 2015-07-02 14:34:30
● 2015-11-05 18:31:46
○ 2015-12-02 03:50:28
● 2016-02-23 13:33:38
● 2016-03-26 06:11:06
○ 2016-04-16 12:51:48
○ 2026-06-21 14:06:16
○MXmail2.beneluxbusinesscenter.be2015-07-02 → 2016-03-26 · 7 obs
● 2015-07-02 14:34:30
● 2015-11-05 18:31:46
○ 2015-12-02 03:50:28
● 2016-02-23 13:33:38
● 2016-03-26 06:11:06
○ 2016-04-16 12:51:48
○ 2026-06-21 14:06:16
○MXmxcluster1.one.com2016-04-16 → 2017-04-27 · 5 obs
○ 2016-03-26 06:11:06
● 2016-04-16 12:51:48
● 2017-04-27 23:16:48
○ 2017-05-16 00:29:14
○ 2026-06-21 14:06:16
○MXmxcluster2.one.com2016-04-16 → 2017-04-27 · 5 obs
○ 2016-03-26 06:11:06
● 2016-04-16 12:51:48
● 2017-04-27 23:16:48
○ 2017-05-16 00:29:14
○ 2026-06-21 14:06:16
●A104.21.92.512026-02-17 → 2026-06-21 · 6 obs
○ 2017-05-16 00:29:14
● 2026-02-17 11:11:46
● 2026-02-17 23:32:02
○ 2026-02-19 17:09:56
● 2026-03-31 02:10:02
● 2026-06-21 14:06:16
○A104.28.18.1722015-11-05 → 2016-03-26 · 7 obs
○ 2015-07-02 14:34:30
● 2015-11-05 18:31:46
○ 2015-12-02 03:50:28
● 2016-02-23 13:33:38
● 2016-03-26 06:11:06
○ 2016-04-16 12:51:48
○ 2026-06-21 14:06:16
○A104.28.19.1722015-11-05 → 2016-03-26 · 7 obs
○ 2015-07-02 14:34:30
● 2015-11-05 18:31:46
○ 2015-12-02 03:50:28
● 2016-02-23 13:33:38
● 2016-03-26 06:11:06
○ 2016-04-16 12:51:48
○ 2026-06-21 14:06:16
○A172.64.80.12026-02-19 → 2026-02-19 · 4 obs
○ 2026-02-17 23:32:02
● 2026-02-19 17:09:56
○ 2026-03-31 02:10:02
○ 2026-06-21 14:06:16
●A172.67.186.1412026-02-17 → 2026-06-21 · 6 obs
○ 2017-05-16 00:29:14
● 2026-02-17 11:11:46
● 2026-02-17 23:32:02
○ 2026-02-19 17:09:56
● 2026-03-31 02:10:02
● 2026-06-21 14:06:16
○A2606:4700:130:436c:6f75:6466:6c61:72652026-02-19 → 2026-02-19 · 4 obs
○ 2026-02-17 23:32:02
● 2026-02-19 17:09:56
○ 2026-03-31 02:10:02
○ 2026-06-21 14:06:16
●A2606:4700:3034::ac43:ba8d2026-02-17 → 2026-06-21 · 6 obs
○ 2017-05-16 00:29:14
● 2026-02-17 11:11:46
● 2026-02-17 23:32:02
○ 2026-02-19 17:09:56
● 2026-03-31 02:10:02
● 2026-06-21 14:06:16
●A2606:4700:3035::6815:5c332026-02-17 → 2026-06-21 · 6 obs
○ 2017-05-16 00:29:14
● 2026-02-17 11:11:46
● 2026-02-17 23:32:02
○ 2026-02-19 17:09:56
● 2026-03-31 02:10:02
● 2026-06-21 14:06:16
○A46.30.211.2222016-12-20 → 2017-02-12 · 5 obs
○ 2016-12-05 16:41:16
● 2016-12-20 08:36:02
● 2017-02-12 21:06:08
○ 2017-04-10 19:34:48
○ 2026-06-21 14:06:16
○A46.30.211.322016-04-16 → 2016-12-05 · 5 obs
○ 2016-03-26 06:11:06
● 2016-04-16 12:51:48
● 2016-12-05 16:41:16
○ 2016-12-20 08:36:02
○ 2026-06-21 14:06:16
○A46.30.213.552017-04-10 → 2017-04-27 · 5 obs
○ 2017-02-12 21:06:08
● 2017-04-10 19:34:48
● 2017-04-27 23:16:48
○ 2017-05-16 00:29:14
○ 2026-06-21 14:06:16
○A78.47.8.2182015-07-02 → 2015-07-02 · 3 obs
● 2015-07-02 14:34:30
○ 2015-11-05 18:31:46
○ 2026-06-21 14:06:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
beb.nsset.be, d.nsset.be, a.nsset.be, y.nsset.be...-
offcourse.becolin.ns.cloudflare.com, laylah.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.44.75

NS records: colin.ns.cloudflare.com, laylah.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 505ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.92.51, 172.67.186.141
AAAA22606:4700:3034::ac43:ba8d, 2606:4700:3035::6815:5c33
NS2colin.ns.cloudflare.com, laylah.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1colin.ns.cloudflare.com dns.cloudflare.c

Analysis

IP Addresses

offcourse.be has four IP addresses: 104.21.92.51, 172.67.186.141, 2606:4700:3034::ac43:ba8d and 2606:4700:3035::6815:5c33.

Additional host names — prexamples.com, velkebdt.live, mezclaperfecta.com and two others — share IP numbers with offcourse.be.

Name Servers

DNS delegation for offcourse.be points to two name servers: colin.ns.cloudflare.com and laylah.ns.cloudflare.com.

offcourse.be shares its name server setup with other domains, including nhk.nl, topcom.nl, halliday.nl and two others.

offcourse.be partially shares its NS delegation with several other domains, including 89pj13.com, auracare.pl, vook.com and two others.

These name servers regularly co-occur with the name servers amanda.ns.cloudflare.com, simon.ns.cloudflare.com and noor.ns.cloudflare.com.

Host names with 6 IP numbers:

colin.ns.cloudflare.com has IP addresses 108.162.195.75, 162.159.44.75 and 172.64.35.75, plus 3 other.

laylah.ns.cloudflare.com has IP addresses 108.162.194.230, 162.159.38.230 and 172.64.34.230, plus 3 other.