courseo.fr - robtex.com

courseo.fr

DNSSEC⚠️ Not signed
NSns-1228.awsdns-25.org ⚠️ Not in zone NS records
A2600:9000:5304:cc00::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront
PTRns-1228.awsdns-25.org
A205.251.196.204🇺🇸 Amazon205.251.196.0/24 prefix
PTRns-1228.awsdns-25.org
NSns-1999.awsdns-57.co.uk ⚠️ Not in zone NS records
A2600:9000:5307:cf00::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront
PTRns-1999.awsdns-57.co.uk
A205.251.199.207🇺🇸 Amazon205.251.199.0/24 prefix
PTRns-1999.awsdns-57.co.uk
NSns-344.awsdns-43.com ⚠️ Not in zone NS records
A2600:9000:5301:5800::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront
PTRns-344.awsdns-43.com
A205.251.193.88🇺🇸 Amazon205.251.193.0/24 prefix
PTRns-344.awsdns-43.com
NSns-980.awsdns-58.net ⚠️ Not in zone NS records
A2600:9000:5303:d400::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront
PTRns-980.awsdns-58.net
A205.251.195.212🇺🇸 Amazon205.251.195.0/24 prefix
PTRns-980.awsdns-58.net

fr

DNSSEC🔒 Signed (DS record present)
NSa.nic.fr ⭐
NSd.nic.fr
NSf.ext.nic.fr
NSg.ext.nic.fr
TXT22 RRs processed [28/07/2026 03H00:50]
SOAa.nic.frdnsmaster@afnic.fr serial=2245890786

Same first word

courseo.fr
courseo.pl
courseo.com

Similar names

sourceo.com
eurocos.es
eurocos.vn
ecorous.org
eurocos.com
osource.eu
osource.info
sourceo.net
eurosco.com
soource.com
ecourso.com
usocore.fr
recouso.com
coseuro.com
osource.se
usocore.net
eurosco.fr
osource.com
securoo.com
osource.org
osource.de
osource.at
ocourse.org
usocore.be
eurocos.lt
coosure.com
osource.co.in
socoeur.com
osecour.com

DNS History

20 records (4 active, 16 former)

2017201820192020202120222023202420252026NSns-1228.awsdns-25.orgns-1999.awsdns-57.co.ukns-344.awsdns-43.comns-980.awsdns-58.netns-fr.1and1-dns.bizns-fr.1and1-dns.comns-fr.1and1-dns.frns-fr.1and1-dns.orgns1017.ui-dns.bizns1017.ui-dns.comns1017.ui-dns.dens1017.ui-dns.orgMXmx00.1and1.frmx01.1and1.frA2001:8d8:1001:52ca:6380:60fb:3d3e:880e2001:8d8:1001:52ca:da46:b1bf:d2f3:905a2001:8d8:100f:f000::2ab212.227.178.84212.227.247.170217.160.0.226
●NSns-1228.awsdns-25.org2026-04-20 → 2026-07-28 · 3 obs
○ 2020-01-18 03:55:52
● 2026-04-20 09:03:58
● 2026-07-28 03:12:02
●NSns-1999.awsdns-57.co.uk2026-04-20 → 2026-07-28 · 3 obs
○ 2020-01-18 03:55:52
● 2026-04-20 09:03:58
● 2026-07-28 03:12:02
●NSns-344.awsdns-43.com2026-04-20 → 2026-07-28 · 3 obs
○ 2020-01-18 03:55:52
● 2026-04-20 09:03:58
● 2026-07-28 03:12:02
●NSns-980.awsdns-58.net2026-04-20 → 2026-07-28 · 3 obs
○ 2020-01-18 03:55:52
● 2026-04-20 09:03:58
● 2026-07-28 03:12:02
○NSns-fr.1and1-dns.biz2016-03-10 → 2017-03-24 · 4 obs
● 2016-03-10 21:01:30
● 2017-03-24 21:38:34
○ 2020-01-18 03:55:52
○ 2026-07-28 03:12:02
○NSns-fr.1and1-dns.com2016-03-10 → 2017-03-24 · 4 obs
● 2016-03-10 21:01:30
● 2017-03-24 21:38:34
○ 2020-01-18 03:55:52
○ 2026-07-28 03:12:02
○NSns-fr.1and1-dns.fr2016-03-10 → 2017-03-24 · 4 obs
● 2016-03-10 21:01:30
● 2017-03-24 21:38:34
○ 2020-01-18 03:55:52
○ 2026-07-28 03:12:02
○NSns-fr.1and1-dns.org2016-03-10 → 2017-03-24 · 4 obs
● 2016-03-10 21:01:30
● 2017-03-24 21:38:34
○ 2020-01-18 03:55:52
○ 2026-07-28 03:12:02
○NSns1017.ui-dns.biz2020-01-18 → 2020-01-18 · 4 obs
○ 2017-03-24 21:38:34
● 2020-01-18 03:55:52
○ 2026-04-20 09:03:58
○ 2026-07-28 03:12:02
○NSns1017.ui-dns.com2020-01-18 → 2020-01-18 · 4 obs
○ 2017-03-24 21:38:34
● 2020-01-18 03:55:52
○ 2026-04-20 09:03:58
○ 2026-07-28 03:12:02
○NSns1017.ui-dns.de2020-01-18 → 2020-01-18 · 4 obs
○ 2017-03-24 21:38:34
● 2020-01-18 03:55:52
○ 2026-04-20 09:03:58
○ 2026-07-28 03:12:02
○NSns1017.ui-dns.org2020-01-18 → 2020-01-18 · 4 obs
○ 2017-03-24 21:38:34
● 2020-01-18 03:55:52
○ 2026-04-20 09:03:58
○ 2026-07-28 03:12:02
○MXmx00.1and1.fr2016-03-10 → 2020-01-18 · 4 obs
● 2016-03-10 21:01:30
● 2020-01-18 03:55:52
○ 2026-04-20 09:03:58
○ 2026-07-28 03:12:02
○MXmx01.1and1.fr2016-03-10 → 2020-01-18 · 4 obs
● 2016-03-10 21:01:30
● 2020-01-18 03:55:52
○ 2026-04-20 09:03:58
○ 2026-07-28 03:12:02
○A2001:8d8:1001:52ca:6380:60fb:3d3e:880e2016-03-10 → 2016-03-10 · 3 obs
● 2016-03-10 21:01:30
○ 2016-07-19 11:49:48
○ 2026-07-28 03:12:02
○A2001:8d8:1001:52ca:da46:b1bf:d2f3:905a2016-07-19 → 2017-03-24 · 5 obs
○ 2016-03-10 21:01:30
● 2016-07-19 11:49:48
● 2017-03-24 21:38:34
○ 2020-01-18 03:55:52
○ 2026-07-28 03:12:02
○A2001:8d8:100f:f000::2ab2020-01-18 → 2020-01-18 · 4 obs
○ 2017-03-24 21:38:34
● 2020-01-18 03:55:52
○ 2026-04-20 09:03:58
○ 2026-07-28 03:12:02
○A212.227.178.842016-03-10 → 2016-03-10 · 3 obs
● 2016-03-10 21:01:30
○ 2016-07-19 11:49:48
○ 2026-07-28 03:12:02
○A212.227.247.1702016-07-19 → 2017-03-24 · 5 obs
○ 2016-03-10 21:01:30
● 2016-07-19 11:49:48
● 2017-03-24 21:38:34
○ 2020-01-18 03:55:52
○ 2026-07-28 03:12:02
○A217.160.0.2262020-01-18 → 2020-01-18 · 4 obs
○ 2017-03-24 21:38:34
● 2020-01-18 03:55:52
○ 2026-04-20 09:03:58
○ 2026-07-28 03:12:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
frd.nic.fr, f.ext.nic.fr, g.ext.nic.fr-
courseo.frns-980.awsdns-58.net, ns-1999.awsdns-57.co.uk, ns-344.awsdns-43.com, ns-1228.awsdns-25.org-

✅ Authoritative Response

Server:205.251.199.207

NS records: ns-980.awsdns-58.net, ns-1999.awsdns-57.co.uk, ns-344.awsdns-43.com, ns-1228.awsdns-25.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for courseo.fr (unsigned zone)

⏱️ Timing

Total: 535ms | Queries: -

📄 Records

TypeCountSample Data

Analysis

Name Servers

The domain courseo.fr is delegated to these four name servers: ns-344.awsdns-43.com, ns-980.awsdns-58.net, ns-1228.awsdns-25.org and ns-1999.awsdns-57.co.uk.

courseo.fr partially shares its NS delegation with several other domains, including elnino.wr.usgs.gov, d2id7gl83ytof7.cloudfront.net, scene.io and two others.

ns-344.awsdns-43.com, ns-980.awsdns-58.net, ns-1228.awsdns-25.org and ns-1999.awsdns-57.co.uk each carry two IP addresses. ns-344.awsdns-43.com has 205.251.193.88 and 2600:9000:5301:5800::1; ns-980.awsdns-58.net has 205.251.195.212 and 2600:9000:5303:d400::1; ns-1228.awsdns-25.org has 205.251.196.204 and 2600:9000:5304:cc00::1; ns-1999.awsdns-57.co.uk has 205.251.199.207 and 2600:9000:5307:cf00::1.