`studylanguage.com`

DNSSEC	⚠️ Not signed
A	77.72.2.126^{🇬🇧 KRYSTAL77.72.2.0/24}
		PTR	`p126.lon.krystal.io`
NS	`ns1.krystal.uk` ⭐ ⚠️ Not in parent delegation
		A	77.72.0.11^{🇬🇧 KRYSTAL77.72.0.0/21 Krystal Hosting Ltd}
			PTR	`ns1.krystal.uk`
NS	`ns1.krystal.co.uk` ⚠️ Not in zone NS records
		A	77.72.0.11^{🇬🇧 KRYSTAL77.72.0.0/21 Krystal Hosting Ltd}
			PTR	`ns1.krystal.uk`
NS	`ns2.krystal.co.uk` ⚠️ Not in zone NS records
		A	139.162.230.184^{🇬🇧 AKAMAI-LINODE-AP139.162.224.0/19 Akamai Technologies}
			PTR	`ns2.krystal.uk`
NS	`ns2.krystal.uk` ⚠️ Not in parent delegation
		A	139.162.230.184^{🇬🇧 AKAMAI-LINODE-AP139.162.224.0/19 Akamai Technologies}
			PTR	`ns2.krystal.uk`
MX	`studylanguage-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca0b::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo2p265cu02300.inbound.protection.outlook.com`
		A	2a01:111:f403:ca0b::1^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo3p265cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:ca1a::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cwxp265cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:ca1a::1^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cwxp265cu00601.inbound.protection.outlook.com`
		A	52.101.89.1^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo0p265cu00201.inbound.protection.outlook.com`
		A	52.101.89.2^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo3p265cu00302.inbound.protection.outlook.com`
		A	52.101.99.0^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cwxp265cu00600.inbound.protection.outlook.com`
		A	52.101.99.2^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cwxp265cu00502.inbound.protection.outlook.com`
MX	`mx1.krystal.io`⁽¹⁰⁾
		A	185.53.56.44^{🇬🇧 KRYSTAL185.53.56.0/22}
			PTR	`mx1.strikemail.co.uk`
		A	185.53.56.46^{🇬🇧 KRYSTAL185.53.56.0/22}
			PTR	`mx1.strikemail.co.uk`
MX	`mx2.krystal.io`⁽²⁰⁾
		A	185.53.56.45^{🇬🇧 KRYSTAL185.53.56.0/22}
			PTR	`mx2.strikemail.co.uk`
		A	185.53.56.47^{🇬🇧 KRYSTAL185.53.56.0/22}
			PTR	`mx2.strikemail.co.uk`
TXT	`v=spf1 ip4:77.72.1.18 ip4:77.72.2.126 include:relay.k.io include:spf.protecti...`
SOA	`ns1.krystal.uk`admin@demo.p126.lon.krystal.io 2026-07-26 #7

`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=1785103537

Same first word

studylanguage.com

studylanguage.co.uk

Similar names

languagestudy.mobi

DNS History

24 records (8 active, 16 former)

○NSns-1487.awsdns-57.org2015-10-29 → 2016-09-08 · 5 obs

○ 2015-06-16 04:40:54
● 2015-10-29 21:45:24
● 2016-09-08 15:38:16
○ 2017-01-10 06:50:28
○ 2026-07-26 22:34:12

○NSns-1555.awsdns-02.co.uk2015-10-29 → 2016-09-08 · 5 obs

○ 2015-06-16 04:40:54
● 2015-10-29 21:45:24
● 2016-09-08 15:38:16
○ 2017-01-10 06:50:28
○ 2026-07-26 22:34:12

○NSns-160.awsdns-20.com2015-10-29 → 2016-09-08 · 5 obs

○ 2015-06-16 04:40:54
● 2015-10-29 21:45:24
● 2016-09-08 15:38:16
○ 2017-01-10 06:50:28
○ 2026-07-26 22:34:12

○NSns-844.awsdns-41.net2015-10-29 → 2016-09-08 · 5 obs

○ 2015-06-16 04:40:54
● 2015-10-29 21:45:24
● 2016-09-08 15:38:16
○ 2017-01-10 06:50:28
○ 2026-07-26 22:34:12

○NSns1.eftydns.com2017-01-10 → 2017-10-03 · 12 obs

○ 2016-09-08 15:38:16
● 2017-01-10 06:50:28
○ 2017-06-27 00:09:16
● 2017-07-08 10:34:54
○ 2017-07-12 23:07:46
○ 2017-07-26 07:49:14
● 2017-08-03 07:33:22
● 2017-08-26 13:34:30
○ 2017-09-14 03:24:58
● 2017-10-03 07:10:00
○ 2026-06-15 03:57:30
○ 2026-07-26 22:34:12

●NSns1.krystal.co.uk2026-06-15 → 2026-07-26 · 3 obs

○ 2017-10-03 07:10:00
● 2026-06-15 03:57:30
● 2026-07-26 22:34:12

●NSns1.krystal.uk2026-06-15 → 2026-07-26 · 3 obs

○ 2017-10-03 07:10:00
● 2026-06-15 03:57:30
● 2026-07-26 22:34:12

○NSns2.eftydns.com2017-01-10 → 2017-10-03 · 12 obs

○ 2016-09-08 15:38:16
● 2017-01-10 06:50:28
● 2017-06-27 00:09:16
○ 2017-07-08 10:34:54
● 2017-07-12 23:07:46
● 2017-07-26 07:49:14
○ 2017-08-03 07:33:22
○ 2017-08-26 13:34:30
● 2017-09-14 03:24:58
● 2017-10-03 07:10:00
○ 2026-06-15 03:57:30
○ 2026-07-26 22:34:12

●NSns2.krystal.co.uk2026-06-15 → 2026-07-26 · 3 obs

○ 2017-10-03 07:10:00
● 2026-06-15 03:57:30
● 2026-07-26 22:34:12

●NSns2.krystal.uk2026-06-15 → 2026-07-26 · 3 obs

○ 2017-10-03 07:10:00
● 2026-06-15 03:57:30
● 2026-07-26 22:34:12

○NSns41.domaincontrol.com2015-06-16 → 2015-06-16 · 3 obs

● 2015-06-16 04:40:54
○ 2015-10-29 21:45:24
○ 2026-07-26 22:34:12

○NSns42.domaincontrol.com2015-06-16 → 2015-06-16 · 3 obs

● 2015-06-16 04:40:54
○ 2015-10-29 21:45:24
○ 2026-07-26 22:34:12

○MXmail.efty.com2017-01-10 → 2017-10-03 · 5 obs

○ 2016-09-08 15:38:16
● 2017-01-10 06:50:28
● 2017-10-03 07:10:00
○ 2026-06-15 03:57:30
○ 2026-07-26 22:34:12

○MXmailstation.office-on-the.net2016-09-08 → 2016-09-08 · 4 obs

○ 2015-10-29 21:45:24
● 2016-09-08 15:38:16
○ 2017-01-10 06:50:28
○ 2026-07-26 22:34:12

○MXmailstore1.secureserver.net2015-06-16 → 2015-06-16 · 3 obs

● 2015-06-16 04:40:54
○ 2015-10-29 21:45:24
○ 2026-07-26 22:34:12

●MXmx1.krystal.io2026-06-15 → 2026-07-26 · 3 obs

○ 2017-10-03 07:10:00
● 2026-06-15 03:57:30
● 2026-07-26 22:34:12

●MXmx2.krystal.io2026-06-15 → 2026-07-26 · 3 obs

○ 2017-10-03 07:10:00
● 2026-06-15 03:57:30
● 2026-07-26 22:34:12

○MXsmtp.secureserver.net2015-06-16 → 2015-06-16 · 3 obs

● 2015-06-16 04:40:54
○ 2015-10-29 21:45:24
○ 2026-07-26 22:34:12

●MXstudylanguage-com.mail.protection.outlook.com2026-06-15 → 2026-07-26 · 3 obs

○ 2017-10-03 07:10:00
● 2026-06-15 03:57:30
● 2026-07-26 22:34:12

○A119.81.170.182017-01-10 → 2017-10-03 · 8 obs

○ 2016-09-08 15:38:16
● 2017-01-10 06:50:28
● 2017-07-26 07:49:14
○ 2017-08-03 07:33:22
● 2017-08-09 06:17:00
● 2017-10-03 07:10:00
○ 2026-06-15 03:57:30
○ 2026-07-26 22:34:12

○A184.168.221.372015-06-16 → 2015-06-16 · 3 obs

● 2015-06-16 04:40:54
○ 2015-10-29 21:45:24
○ 2026-07-26 22:34:12

○A204.236.224.1232016-09-08 → 2016-09-08 · 4 obs

○ 2015-10-29 21:45:24
● 2016-09-08 15:38:16
○ 2017-01-10 06:50:28
○ 2026-07-26 22:34:12

○A37.58.107.932017-08-03 → 2017-10-03 · 7 obs

○ 2017-07-26 07:49:14
● 2017-08-03 07:33:22
○ 2017-08-09 06:17:00
● 2017-08-16 09:31:08
● 2017-10-03 07:10:00
○ 2026-06-15 03:57:30
○ 2026-07-26 22:34:12

●A77.72.2.1262026-06-15 → 2026-07-26 · 3 obs

○ 2017-10-03 07:10:00
● 2026-06-15 03:57:30
● 2026-07-26 22:34:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, i.gtld-servers.net, f.gtld-servers.net, e.gtld-servers.net...	-
studylanguage.com	ns1.krystal.co.uk, ns2.krystal.co.uk	-

✅ Authoritative Response

Server:139.162.230.184

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studylanguage.com (unsigned zone)

⏱️ Timing

Total: 670ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`77.72.2.126`
NS	2	`ns1.krystal.uk, ns2.krystal.uk`
MX	3	`mx2.krystal.io (pri: 20), mx1.krystal.io (pri: 10)...`
TXT	1	`v=spf1 ip4:77.72.1.18 ip4:77.72.2.126 in`
SOA	1	`ns1.krystal.uk admin.demo.p126.lon.kryst`

Analysis

IP Addresses

studylanguage.com points to a single IP number: 77.72.2.126.

Additional host names — flipchem.com, alphabet-learning.com, regencygraphics.co.uk and two others — share IP numbers with studylanguage.com.

Name Servers

studylanguage.com has four authoritative name servers: ns1.krystal.uk, ns2.krystal.uk, ns1.krystal.co.uk and ns2.krystal.co.uk.

The name servers of studylanguage.com overlap at least partially with those of other domains — among them admwright.com, charliehigh.com, swindonseacadets.co.uk and two more.

These name servers commonly appear in delegations together with ns1.cloudhosting.uk, ns2.cloudhosting.uk, ns1.krystal.io and 7 other.

Each of the host names ns1.krystal.uk, ns2.krystal.uk, ns1.krystal.co.uk and ns2.krystal.co.uk has one IP address: ns1.krystal.uk resolves to 77.72.0.11, ns2.krystal.uk resolves to 139.162.230.184, ns1.krystal.co.uk resolves to 77.72.0.11 and ns2.krystal.co.uk resolves to 139.162.230.184.

ns1.krystal.uk and ns1.krystal.co.uk each have 77.72.0.11 IP addresses.

ns2.krystal.uk and ns2.krystal.co.uk each have 139.162.230.184 IP addresses.

Mail Servers

Mail for studylanguage.com is routed through three mail servers — mx1.krystal.io, mx2.krystal.io and studylanguage-com.mail.protection.outlook.com.

studylanguage.com shares mail servers — at least in part — with other domains, including commonground.org.uk, floorserve.co.uk, conscioussport.com and two others.

Host names with 8 IP numbers:

studylanguage-com.mail.protection.outlook.com maps to 52.101.89.1, 52.101.89.2, 52.101.99.0 and 5 additional IP addresses.

Host names with two IP numbers:

The A records for mx1.krystal.io return 185.53.56.44 and 185.53.56.46.

The A records for mx2.krystal.io return 185.53.56.45 and 185.53.56.47.

studylanguage.com - robtex.com