`gp-courses.co`

DNSSEC	⚠️ Not signed
A	46.23.69.44^{🇬🇧 UK2NET-AS46.23.64.0/21 UK2.NET announcement}
		PTR	`webdiversion.uk2.net`
NS	`ultra103.uk2.net` ⭐
		A	77.92.66.25^{🇬🇧 UK2NET-AS77.92.64.0/21 UK2.NET announcement}
			PTR	`dns2.uk.chimera.uk2group.com`
NS	`ultra104.uk2.net`
		A	77.92.66.26^{🇬🇧 UK2NET-AS77.92.64.0/21 UK2.NET announcement}
			PTR	`dns3.uk.chimera.uk2group.com`
MX	`mx.stackmail.com` ⭐
		A	185.151.28.67^{🇬🇧 TWENTYI185.151.28.0/24}
			PTR	`mx.stackmail.com`
TXT	`v=spf1 include:spf.stackmail.com a mx -all`
SOA	`ultra103.uk2.net`hostmaster@gp-courses@co 2011-05-09 #13

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759656493

Same first word

gp-courses.co

Similar names

ces-groups.com

cess-group.com

gps-course.com

cp-seguros.de

DNS History

6 records (4 active, 2 former)

●NSultra103.uk2.net2015-08-21 → 2026-05-12 · 2 obs

● 2015-08-21 06:04:24
● 2026-05-12 20:40:14

●NSultra104.uk2.net2015-08-21 → 2026-05-12 · 2 obs

● 2015-08-21 06:04:24
● 2026-05-12 20:40:14

○MXmx.gp-courses.co.cust.a.hostedemail.com2015-08-21 → 2020-02-09 · 4 obs

● 2015-08-21 06:04:24
● 2020-02-09 14:49:36
○ 2026-02-15 18:21:54
○ 2026-05-12 20:40:14

●MXmx.stackmail.com2026-02-15 → 2026-05-12 · 3 obs

○ 2020-02-09 14:49:36
● 2026-02-15 18:21:54
● 2026-05-12 20:40:14

●A46.23.69.442026-02-15 → 2026-05-12 · 3 obs

○ 2020-02-09 14:49:36
● 2026-02-15 18:21:54
● 2026-05-12 20:40:14

○A83.170.69.532015-08-21 → 2020-02-09 · 4 obs

● 2015-08-21 06:04:24
● 2020-02-09 14:49:36
○ 2026-02-15 18:21:54
○ 2026-05-12 20:40:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co	-
gp-courses.co	ultra104.uk2.net, ultra103.uk2.net	-

✅ Authoritative Response

Server:77.92.66.25

NS records: ultra104.uk2.net, ultra103.uk2.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gp-courses.co (unsigned zone)

⏱️ Timing

Total: 746ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.23.69.44`
NS	2	`ultra103.uk2.net, ultra104.uk2.net`
MX	1	`mx.stackmail.com (pri: 0)`
TXT	1	`v=spf1 include:spf.stackmail.com a mx -a`
SOA	1	`ultra103.uk2.net hostmaster@gp-courses.c`

Analysis

IP Addresses

gp-courses.co points to a single IP number: 46.23.69.44.

other host names for instance reallyspecial.co.uk, woodyear.net, independentlivingsmartcare.com, philatelicbureau.co.uk and gramarye.co.uk share IP numbers with gp-courses.co.

Name Servers

gp-courses.co is delegated to two name servers: ultra103.uk2.net and ultra104.uk2.net.

gp-courses.co shares the same name server setup as other domains, for example wellsstainedglass.co.uk, katabeach.com, wastedeals.com, bus3s.co.uk and freshfm.co.uk.

gp-courses.co at least partially shares name servers with other domains, for instance peut.co.uk, actuated.co.uk, windrawwin.co, multi-currency.com and caluse.net.

These name servers are commonly used with dns2.uk2.net, dns1.uk2.net, dns3.uk2.net and uk2net.com.

Host names with one IP number:

The host ultra103.uk2.net points to 77.92.66.25 and the host ultra104.uk2.net points to 77.92.66.26.

Mail Servers

gp-courses.co is handled by a single mail server, mx.stackmail.com.

gp-courses.co shares the same mail server setup as other domains, for instance opi2020.com, lacala-spain.co.uk, desainin.id, trackingtime.com and gsking.net.

Host name mx.stackmail.com points to IP address 185.151.28.67.

gp-courses.co - robtex.com

gp-courses.co

co