`linkedtraining.net`

DNSSEC	⚠️ Not signed
A	77.72.2.74^{🇬🇧 KRYSTAL77.72.2.0/24}
		PTR	`edward-lon.krystal.uk`
NS	`ns1.krystal.uk` ⭐
		A	77.72.0.11^{🇬🇧 KRYSTAL77.72.0.0/21 Krystal Hosting Ltd}
			PTR	`ns1.krystal.uk`
NS	`ns2.krystal.uk`
		A	139.162.230.184^{🇬🇧 AKAMAI-LINODE-AP139.162.224.0/19 Akamai Technologies}
			PTR	`ns2.krystal.uk`
MX	`mx1.krystal.uk` ⭐
		A	185.53.56.44^{🇬🇧 KRYSTAL185.53.56.0/22}
		A	185.53.56.46^{🇬🇧 KRYSTAL185.53.56.0/22}
MX	`mx2.krystal.uk`⁽²⁰⁾
		A	185.53.56.45^{🇬🇧 KRYSTAL185.53.56.0/22}
		A	185.53.56.47^{🇬🇧 KRYSTAL185.53.56.0/22}
TXT	`v=spf1 include:relay.k.io ip4:77.72.2.74 a mx ip4:77.72.1.41 ~all`
SOA	`ns1.krystal.uk`admin@k-validator-edward-lon.krystal.uk 2026-07-11 #0

`net`

	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=1784652942

Same first word

linkedtraining.net

DNS History

10 records (5 active, 5 former)

●NSns1.krystal.uk2026-04-17 → 2026-07-21 · 3 obs

○ 2017-05-14 17:21:16
● 2026-04-17 17:03:20
● 2026-07-21 17:26:34

○NSns1.ourlinuxnetwork.com2015-06-10 → 2017-05-14 · 4 obs

● 2015-06-10 13:22:26
● 2017-05-14 17:21:16
○ 2026-04-17 17:03:20
○ 2026-07-21 17:26:34

●NSns2.krystal.uk2026-04-17 → 2026-07-21 · 3 obs

○ 2017-05-14 17:21:16
● 2026-04-17 17:03:20
● 2026-07-21 17:26:34

○NSns2.ourlinuxnetwork.com2015-06-10 → 2017-05-14 · 4 obs

● 2015-06-10 13:22:26
● 2017-05-14 17:21:16
○ 2026-04-17 17:03:20
○ 2026-07-21 17:26:34

○MXmail.linkedtraining.net2015-06-10 → 2017-05-14 · 4 obs

● 2015-06-10 13:22:26
● 2017-05-14 17:21:16
○ 2026-04-17 17:03:20
○ 2026-07-21 17:26:34

●MXmx1.krystal.uk2026-04-17 → 2026-07-21 · 3 obs

○ 2017-05-14 17:21:16
● 2026-04-17 17:03:20
● 2026-07-21 17:26:34

●MXmx2.krystal.uk2026-04-17 → 2026-07-21 · 3 obs

○ 2017-05-14 17:21:16
● 2026-04-17 17:03:20
● 2026-07-21 17:26:34

○A109.109.131.1612016-10-28 → 2017-05-14 · 5 obs

○ 2016-03-31 08:50:18
● 2016-10-28 11:29:22
● 2017-05-14 17:21:16
○ 2026-04-17 17:03:20
○ 2026-07-21 17:26:34

○A109.109.131.1782015-06-10 → 2016-03-31 · 4 obs

● 2015-06-10 13:22:26
● 2016-03-31 08:50:18
○ 2016-10-28 11:29:22
○ 2026-07-21 17:26:34

●A77.72.2.742026-04-17 → 2026-07-21 · 3 obs

○ 2017-05-14 17:21:16
● 2026-04-17 17:03:20
● 2026-07-21 17:26:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
linkedtraining.net	ns2.krystal.uk, ns1.krystal.uk	-

✅ Authoritative Response

Server:139.162.230.184

NS records: ns2.krystal.uk, ns1.krystal.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linkedtraining.net (unsigned zone)

⏱️ Timing

Total: 398ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`77.72.2.74`
NS	2	`ns2.krystal.uk, ns1.krystal.uk`
MX	2	`mx1.krystal.uk (pri: 10), mx2.krystal.uk (pri: 20)`
TXT	1	`v=spf1 include:relay.k.io ip4:77.72.2.74`
SOA	1	`ns1.krystal.uk admin.k-validator-edward-`

Analysis

IP Addresses

linkedtraining.net resolves to just one IP address, 77.72.2.74.

Two other host names, along with mail.lilithbecker.com, mail.neighbourfinder.co.uk and eit.engineers.scot, also share IP numbers with linkedtraining.net.

Name Servers

The NS records for linkedtraining.net delegate to ns1.krystal.uk and ns2.krystal.uk.

linkedtraining.net shares its NS records with other domains, for example accellous.com, spirecon.uk, alingo.pl and two others.

The name servers of linkedtraining.net overlap at least partially with those of other domains — among them countrywide-mobility.co.uk, designforonline.com, rede4.com and two more.

These name servers commonly appear in delegations together with ns1.krystal.co.uk, ns2.krystal.co.uk, ns1.cloudhosting.co.uk and 5 other.

Both ns1.krystal.uk and ns2.krystal.uk have a single IP address each — ns1.krystal.uk resolves to 77.72.0.11 while ns2.krystal.uk resolves to 139.162.230.184.

Mail Servers

linkedtraining.net is served by two mail servers, mx1.krystal.uk and mx2.krystal.uk.

Among the domains sharing a mail server setup with linkedtraining.net are nisfa.co.uk, hairdressersupplies.co.uk, peepthat.co.uk and two others.

The mail servers for linkedtraining.net overlap at least partially with those of other domains, including westii.com and brickmatch.co.uk.

mx1.krystal.uk resolves to 185.53.56.44 and 185.53.56.46. Likewise, mx2.krystal.uk resolves to 185.53.56.45 and 185.53.56.47 — two IP addresses apiece.

linkedtraining.net - robtex.com