courses-u.com - robtex.com

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`courses-u.com`

DNSSEC	⚠️ Not signed
A	217.70.184.38^{🇫🇷 GANDI-AS}
		PTR	`webredir.vip.gandi.net`
NS	`ns1.gandi.net` ⭐
		A	2001:4b98:aaaa::2^{🇫🇷 GANDI-LIVEDNS}
			PTR	`ns-1-a.gandi.net`
		A	173.246.100.2^{🇺🇸 GANDI-LIVEDNS}
			PTR	`ns-1-a.gandi.net`
NS	`ns-11-c.gandi.net`
		A	2604:3400:aaac::c^{🇺🇸 GANDI-LIVEDNS}
			PTR	`ns-11-c.gandi.net`
		A	217.70.187.12^{🇫🇷 GANDI-LIVEDNS}
			PTR	`ns-11-c.gandi.net`
NS	`ns-120-a.gandi.net`
		A	2001:4b98:aaaa::79^{🇫🇷 GANDI-LIVEDNS}
			PTR	`ns-120-a.gandi.net`
		A	173.246.100.121^{🇺🇸 GANDI-LIVEDNS}
			PTR	`ns-120-a.gandi.net`
NS	`ns-67-b.gandi.net`
		A	2001:4b98:aaab::44^{🇫🇷 GANDI-LIVEDNS}
			PTR	`ns-67-b.gandi.net`
		A	213.167.230.68^{🇫🇷 GANDI-LIVEDNS}
			PTR	`ns-67-b.gandi.net`
SOA	`ns1.gandi.net`hostmaster@gandi.net serial=1770854400

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291435

Up

www.courses-u.com

Same first word

courses-u.com

courses-u.fr

DNS History

11 records (5 active, 6 former)

●NSns-11-c.gandi.net2026-02-17 → 2026-02-18 · 3 obs

○ 2016-07-21 16:39:08
● 2026-02-17 11:47:14
● 2026-02-18 05:21:10

●NSns-120-a.gandi.net2026-02-17 → 2026-02-18 · 3 obs

○ 2016-07-21 16:39:08
● 2026-02-17 11:47:14
● 2026-02-18 05:21:10

●NSns-67-b.gandi.net2026-02-17 → 2026-02-18 · 3 obs

○ 2016-07-21 16:39:08
● 2026-02-17 11:47:14
● 2026-02-18 05:21:10

○NSns0.netbenefit.co.uk2008-03-07 → 2008-03-07 · 3 obs

● 2008-03-07 11:12:04
○ 2015-07-14 10:34:00
○ 2026-02-18 05:21:10

●NSns1.gandi.net2026-02-17 → 2026-02-18 · 3 obs

○ 2016-07-21 16:39:08
● 2026-02-17 11:47:14
● 2026-02-18 05:21:10

○NSns1.netbenefit.co.uk2008-03-07 → 2008-03-07 · 3 obs

● 2008-03-07 11:12:04
○ 2015-07-14 10:34:00
○ 2026-02-18 05:21:10

○NSns1.rrpproxy.net2015-07-14 → 2016-07-21 · 5 obs

○ 2008-03-07 11:12:04
● 2015-07-14 10:34:00
● 2016-07-21 16:39:08
○ 2026-02-17 11:47:14
○ 2026-02-18 05:21:10

○NSns2.rrpproxy.net2015-07-14 → 2016-07-21 · 5 obs

○ 2008-03-07 11:12:04
● 2015-07-14 10:34:00
● 2016-07-21 16:39:08
○ 2026-02-17 11:47:14
○ 2026-02-18 05:21:10

○NSns3.rrpproxy.net2015-07-14 → 2016-07-21 · 5 obs

○ 2008-03-07 11:12:04
● 2015-07-14 10:34:00
● 2016-07-21 16:39:08
○ 2026-02-17 11:47:14
○ 2026-02-18 05:21:10

○A212.53.65.862008-03-07 → 2016-07-21 · 4 obs

● 2008-03-07 11:12:04
● 2016-07-21 16:39:08
○ 2026-02-17 11:47:14
○ 2026-02-18 05:21:10

●A217.70.184.382026-02-17 → 2026-02-18 · 3 obs

○ 2016-07-21 16:39:08
● 2026-02-17 11:47:14
● 2026-02-18 05:21:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
courses-u.com	ns-120-a.gandi.net, ns-67-b.gandi.net, ns-11-c.gandi.net	-

✅ Authoritative Response

Server: 213.167.230.68

NS records: ns-120-a.gandi.net, ns-67-b.gandi.net, ns-11-c.gandi.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for courses-u.com (unsigned zone)

⏱️ Timing

Total: 138ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.70.184.38`
NS	3	`ns-120-a.gandi.net, ns-11-c.gandi.net...`
SOA	1	`ns1.gandi.net hostmaster.gandi.net`

AI analysis

courses-u.com is the parent of www.courses-u.com.

courses-u.com resolves to one IP number: 217.70.184.38.

other host names including nbunce.com, enparler.com, gammaaudit.pro, ochsnersport.sk and q-point.de share IP numbers with courses-u.com.

courses-u.com is delegated to four name servers: ns-11-c.gandi.net, ns-120-a.gandi.net, ns-67-b.gandi.net and ns1.gandi.net.

courses-u.com at least partially shares name servers with other domains, for instance buyme.be, ch-arras.fr, drasa.eu, estimmo.fr and cece-congress.eu.

These name servers are commonly used with ns-4-b.gandi.net, ns-221-c.gandi.net and ns-50-b.gandi.net.

Host names with two IP numbers:

ns-11-c.gandi.net points to 2604:3400:aaac::c and 217.70.187.12; ns-120-a.gandi.net points to 2001:4b98:aaaa::79 and 173.246.100.121; ns-67-b.gandi.net points to 2001:4b98:aaab::44 and 213.167.230.68; ns1.gandi.net points to 2001:4b98:aaaa::2 and 173.246.100.2.