oncourse.se - robtex.com

oncourse.se

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:23bc🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::ac43:b299🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.35.188Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.178.153🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbradley.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c23🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbradley.ns.cloudflare.com
A2803:f800:50::6ca2:c323🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbradley.ns.cloudflare.com
A2a06:98c1:50::ac40:2323🇺🇸 Cloudflare2a06:98c1:50::/45
PTRbradley.ns.cloudflare.com
A108.162.195.35🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbradley.ns.cloudflare.com
A162.159.44.35Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbradley.ns.cloudflare.com
A172.64.35.35🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbradley.ns.cloudflare.com
NStegan.ns.cloudflare.com
A2606:4700:50::adf5:3ae2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtegan.ns.cloudflare.com
A2803:f800:50::6ca2:c0e2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtegan.ns.cloudflare.com
A2a06:98c1:50::ac40:20e2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtegan.ns.cloudflare.com
A108.162.192.226🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtegan.ns.cloudflare.com
A172.64.32.226🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtegan.ns.cloudflare.com
A173.245.58.226🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtegan.ns.cloudflare.com
MXmailcluster.loopia.se ⭐
A2a02:250:0:48::11🇸🇪 LOOPIA2a02:250::/33
PTRmailfront1.mailcluster.loopia.se
A2a02:250:0:48::12🇸🇪 LOOPIA2a02:250::/33
PTRmailfront2.mailcluster.loopia.se
A2a02:250:0:48::13🇸🇪 LOOPIA2a02:250::/33
PTRmailfront3.mailcluster.loopia.se
A2a02:250:0:48::14🇸🇪 LOOPIA2a02:250::/33
PTRmailfront4.mailcluster.loopia.se
A93.188.3.11🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
PTRmailfront1.mailcluster.loopia.se
A93.188.3.12🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
PTRmailfront2.mailcluster.loopia.se
A93.188.3.13🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
PTRmailfront3.mailcluster.loopia.se
A93.188.3.14🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
PTRmailfront4.mailcluster.loopia.se
MXmail2.loopia.se(20)
A93.188.3.11🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
PTRmailfront1.mailcluster.loopia.se
A93.188.3.12🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
PTRmailfront2.mailcluster.loopia.se
A93.188.3.13🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
PTRmailfront3.mailcluster.loopia.se
A93.188.3.14🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
PTRmailfront4.mailcluster.loopia.se
TXTgoogle-site-verification=v7FBD4ADFeJb27TiPqQleR0iuo0y2mMhMrphwWEbwVw
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.35.188, 172.67.178.153
IPv6 hints2606:4700:3031::6815:23bc, 2606:4700:3031::ac43:b299
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=126, name=cloudflare-ech.com
SOAbradley.ns.cloudflare.comdns@cloudflare.com serial=2399701105

se

DNSSEC🔒 Signed (DS record present)
NScatcher-in-the-rye.nic.se ⭐
NSa.ns.se
NSb.ns.se
NSc.ns.se
NSf.ns.se
NSg.ns.se
NSi.ns.se
NSm.ns.se
NSx.ns.se
NSy.ns.se
NSz.ns.se
TXTSE zone update: 2026-04-13 00:59:57 +0000 (EPOCH 1776041997) (auto)
TXTid:b088c717-7bc9-42bb-8719-a91c5fe4a612
SOAcatcher-in-the-rye.nic.seregistry-default@nic.se serial=1776042410

Same first word

oncourse.ca
oncourse.co.uk
oncourse.com
oncourse.golf
oncourse.no
oncourse.dk
oncourse.me
oncourse.ai
oncourse.de
oncourse.se
oncourse.com.au
oncourse.net.au
oncourse.training
oncourse.biz
oncourse.ru
oncourse.com.cn
oncourse.ski
oncourse.education
oncourse.cc
oncourse.be
oncourse.cn
oncourse.eu
oncourse.mobi

Similar names

sooneruc.com
reuconso.fr
nosource.com
econorus.org
unoceros.com
nursecoo.com
unoscore.no
suonorec.com
eurocons.org
neocorus.com
eurocons.com.tr
neurosoc.com
onsource.com
onsource.co
onecorus.org
onsource.s3.amazonaws.com
eurocons.de
onsource.de
sourceon.com
oncosure.com
noescuro.com
onsource.ca
nosource.net
eurocons.it
eurocons.ru
eurocons.eu
conseuro.com
unoscore.com
sourceno.com
neocosur.org
onsource.net
eurocons.rs
onsource.it
onsource.com.au
neocours.com
conoseur.com

DNS History

30 records (8 active, 22 former)

20162017201820192020202120222023202420252026NSbradley.ns.cloudflare.comtegan.ns.cloudflare.comns-cloud-c1.googledomains.comns-cloud-c2.googledomains.comns-cloud-c3.googledomains.comns-cloud-c4.googledomains.comns3.binero.sens4.binero.sens5.binero.sens6.binero.sens7.binero.seMXmail2.loopia.semailcluster.loopia.sealt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.commail.oncourse.semail2.oncourse.seA104.21.35.188172.67.178.1532606:4700:3031::6815:23bc2606:4700:3031::ac43:b299188.114.96.0188.114.97.0195.74.38.982a06:98c1:3120::2a06:98c1:3121::35.228.144.246
●NSbradley.ns.cloudflare.com2026-04-01 → 2026-04-13 · 3 obs
○ 2020-04-08 04:02:58
● 2026-04-01 00:13:58
● 2026-04-13 02:11:42
○NSns-cloud-c1.googledomains.com2020-04-08 → 2020-04-08 · 4 obs
○ 2016-09-08 14:42:08
● 2020-04-08 04:02:58
○ 2026-04-01 00:13:58
○ 2026-04-13 02:11:42
○NSns-cloud-c2.googledomains.com2020-04-08 → 2020-04-08 · 4 obs
○ 2016-09-08 14:42:08
● 2020-04-08 04:02:58
○ 2026-04-01 00:13:58
○ 2026-04-13 02:11:42
○NSns-cloud-c3.googledomains.com2020-04-08 → 2020-04-08 · 4 obs
○ 2016-09-08 14:42:08
● 2020-04-08 04:02:58
○ 2026-04-01 00:13:58
○ 2026-04-13 02:11:42
○NSns-cloud-c4.googledomains.com2020-04-08 → 2020-04-08 · 4 obs
○ 2016-09-08 14:42:08
● 2020-04-08 04:02:58
○ 2026-04-01 00:13:58
○ 2026-04-13 02:11:42
○NSns3.binero.se2015-05-09 → 2016-03-21 · 4 obs
● 2015-05-09 01:42:18
● 2016-03-21 14:16:30
○ 2016-09-08 14:42:08
○ 2026-04-13 02:11:42
○NSns4.binero.se2015-05-09 → 2016-03-21 · 4 obs
● 2015-05-09 01:42:18
● 2016-03-21 14:16:30
○ 2016-09-08 14:42:08
○ 2026-04-13 02:11:42
○NSns5.binero.se2015-05-09 → 2016-03-21 · 4 obs
● 2015-05-09 01:42:18
● 2016-03-21 14:16:30
○ 2016-09-08 14:42:08
○ 2026-04-13 02:11:42
○NSns6.binero.se2015-05-09 → 2016-03-21 · 4 obs
● 2015-05-09 01:42:18
● 2016-03-21 14:16:30
○ 2016-09-08 14:42:08
○ 2026-04-13 02:11:42
○NSns7.binero.se2015-05-09 → 2016-03-21 · 4 obs
● 2015-05-09 01:42:18
● 2016-03-21 14:16:30
○ 2016-09-08 14:42:08
○ 2026-04-13 02:11:42
●NStegan.ns.cloudflare.com2026-04-01 → 2026-04-13 · 3 obs
○ 2020-04-08 04:02:58
● 2026-04-01 00:13:58
● 2026-04-13 02:11:42
○MXalt1.aspmx.l.google.com2020-04-08 → 2020-04-08 · 4 obs
○ 2016-09-08 14:42:08
● 2020-04-08 04:02:58
○ 2026-04-01 00:13:58
○ 2026-04-13 02:11:42
○MXalt2.aspmx.l.google.com2020-04-08 → 2020-04-08 · 4 obs
○ 2016-09-08 14:42:08
● 2020-04-08 04:02:58
○ 2026-04-01 00:13:58
○ 2026-04-13 02:11:42
○MXalt3.aspmx.l.google.com2020-04-08 → 2020-04-08 · 4 obs
○ 2016-09-08 14:42:08
● 2020-04-08 04:02:58
○ 2026-04-01 00:13:58
○ 2026-04-13 02:11:42
○MXalt4.aspmx.l.google.com2020-04-08 → 2020-04-08 · 4 obs
○ 2016-09-08 14:42:08
● 2020-04-08 04:02:58
○ 2026-04-01 00:13:58
○ 2026-04-13 02:11:42
○MXaspmx.l.google.com2020-04-08 → 2020-04-08 · 4 obs
○ 2016-09-08 14:42:08
● 2020-04-08 04:02:58
○ 2026-04-01 00:13:58
○ 2026-04-13 02:11:42
○MXmail.oncourse.se2015-05-09 → 2016-03-21 · 4 obs
● 2015-05-09 01:42:18
● 2016-03-21 14:16:30
○ 2016-09-08 14:42:08
○ 2026-04-13 02:11:42
●MXmail2.loopia.se2026-04-01 → 2026-04-13 · 3 obs
○ 2020-04-08 04:02:58
● 2026-04-01 00:13:58
● 2026-04-13 02:11:42
○MXmail2.oncourse.se2015-05-09 → 2016-03-21 · 4 obs
● 2015-05-09 01:42:18
● 2016-03-21 14:16:30
○ 2016-09-08 14:42:08
○ 2026-04-13 02:11:42
●MXmailcluster.loopia.se2026-04-01 → 2026-04-13 · 3 obs
○ 2020-04-08 04:02:58
● 2026-04-01 00:13:58
● 2026-04-13 02:11:42
●A104.21.35.1882026-04-13 → 2026-04-13 · 3 obs
○ 2026-04-01 00:13:58
● 2026-04-13 02:11:40
● 2026-04-13 02:11:42
●A172.67.178.1532026-04-13 → 2026-04-13 · 3 obs
○ 2026-04-01 00:13:58
● 2026-04-13 02:11:40
● 2026-04-13 02:11:42
○A188.114.96.02026-04-01 → 2026-04-01 · 4 obs
○ 2020-04-08 04:02:58
● 2026-04-01 00:13:58
○ 2026-04-13 02:11:40
○ 2026-04-13 02:11:42
○A188.114.97.02026-04-01 → 2026-04-01 · 4 obs
○ 2020-04-08 04:02:58
● 2026-04-01 00:13:58
○ 2026-04-13 02:11:40
○ 2026-04-13 02:11:42
○A195.74.38.982015-05-09 → 2016-03-21 · 4 obs
● 2015-05-09 01:42:18
● 2016-03-21 14:16:30
○ 2016-09-08 14:42:08
○ 2026-04-13 02:11:42
●A2606:4700:3031::6815:23bc2026-04-13 → 2026-04-13 · 3 obs
○ 2026-04-01 00:13:58
● 2026-04-13 02:11:40
● 2026-04-13 02:11:42
●A2606:4700:3031::ac43:b2992026-04-13 → 2026-04-13 · 3 obs
○ 2026-04-01 00:13:58
● 2026-04-13 02:11:40
● 2026-04-13 02:11:42
○A2a06:98c1:3120::2026-04-01 → 2026-04-01 · 4 obs
○ 2020-04-08 04:02:58
● 2026-04-01 00:13:58
○ 2026-04-13 02:11:40
○ 2026-04-13 02:11:42
○A2a06:98c1:3121::2026-04-01 → 2026-04-01 · 4 obs
○ 2020-04-08 04:02:58
● 2026-04-01 00:13:58
○ 2026-04-13 02:11:40
○ 2026-04-13 02:11:42
○A35.228.144.2462020-04-08 → 2020-04-08 · 4 obs
○ 2016-09-08 14:42:08
● 2020-04-08 04:02:58
○ 2026-04-01 00:13:58
○ 2026-04-13 02:11:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sea.ns.se, b.ns.se, c.ns.se, f.ns.se...-
oncourse.setegan.ns.cloudflare.com, bradley.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.195.35

NS records: tegan.ns.cloudflare.com, bradley.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for oncourse.se (unsigned zone)

⏱️ Timing

Total: 734ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.35.188, 172.67.178.153
AAAA22606:4700:3031::ac43:b299, 2606:4700:3031::6815:23bc
NS2bradley.ns.cloudflare.com, tegan.ns.cloudflare.com
MX2mailcluster.loopia.se (pri: 10), mail2.loopia.se (pri: 20)
TXT1google-site-verification=v7FBD4ADFeJb27T
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1bradley.ns.cloudflare.com dns.cloudflare

Analysis

IP Addresses

oncourse.se maps to four IP numbers: 2606:4700:3031::6815:23bc, 2606:4700:3031::ac43:b299, 104.21.35.188 and 172.67.178.153.

Other host names, for instance cheung.photos, 89k.club, kum-ny.com, mozambiquehe.re and dimetrahq.shop share IP numbers with oncourse.se.

Name Servers

Two name servers bradley.ns.cloudflare.com and tegan.ns.cloudflare.com handle delegation for oncourse.se.

oncourse.se uses the same name server setup as other domains, for example wildwildcasino.io, saphar.net, mezimmah.net, littleguidedetroit.com and cracknel.com.

oncourse.se partially shares name servers with other domains; examples include dimonex.co, vbet44.com, thealleybellevue.com, medok76.ink and nv-kasyno-24.com.

These name servers are commonly used with jule.ns.cloudflare.com, dayana.ns.cloudflare.com, ruth.ns.cloudflare.com, mustafa.ns.cloudflare.com, raina.ns.cloudflare.com and kenia.ns.cloudflare.com.

Host names with six IP numbers: bradley.ns.cloudflare.com points to: 2606:4700:58::a29f:2c23, 2803:f800:50::6ca2:c323, 2a06:98c1:50::ac40:2323, 108.162.195.35, 162.159.44.35 and 172.64.35.35; tegan.ns.cloudflare.com points to: 2606:4700:50::adf5:3ae2, 2803:f800:50::6ca2:c0e2, 2a06:98c1:50::ac40:20e2, 108.162.192.226, 172.64.32.226 and 173.245.58.226.

Mail Servers

oncourse.se is handled by two mail servers: mail2.loopia.se and mailcluster.loopia.se.

oncourse.se has the same mail server setup as other domains, including perspecta.se, earo.eu, eusky.net, orosanmalan.se and proofer.se.

oncourse.se shares some mail servers with other domains, at least partially, such as bodafors.info, abakusnorge.com, arnung.com, laurin.nu and raab.se.

Host names with eight IP numbers

mailcluster.loopia.se points to: 2a02:250:0:48::11, 2a02:250:0:48::12, 2a02:250:0:48::13, 2a02:250:0:48::14, 93.188.3.11, 93.188.3.12, 93.188.3.13 and 93.188.3.14.

Host names with four IP numbers

mail2.loopia.se points to: 93.188.3.11, 93.188.3.12, 93.188.3.13 and 93.188.3.14.

Host names that point to 93.188.3.11: mailcluster.loopia.se and mail2.loopia.se.

Host names that point to 93.188.3.12: mailcluster.loopia.se and mail2.loopia.se.

Host names that point to 93.188.3.13: mailcluster.loopia.se and mail2.loopia.se.

Host names that point to 93.188.3.14: mailcluster.loopia.se and mail2.loopia.se.