istructe.com - dns.ninja

`istructe.com`

DNSSEC	⚠️ Not signed
A	185.194.90.21^{🇬🇧 KRYSTAL185.194.88.0/22}
		PTR	`dende-lon.krystal.uk`
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	`mx1.krystal.uk` ⭐
		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.uk`⁽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 ip4:185.194.90.21 ip4:77.72.1.17 ip4:185.53.58.188 a mx ip4:185.53.58....`
SOA	`ns1.krystal.uk`admin@k-validator-dende-lon.krystal.uk 2026-07-16 #1

`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=1785448202

Same first word

istructe.org.uk

istructe.org

istructe.co.uk

istructe.ie

istructe.com

Similar names

DNS History

15 records (7 active, 8 former)

●NSns1.krystal.co.uk2026-02-16 → 2026-07-30 · 3 obs

○ 2021-06-16 15:44:58
● 2026-02-16 03:05:24
● 2026-07-30 21:52:06

●NSns1.krystal.uk2021-06-16 → 2026-07-30 · 3 obs

○ 2017-06-17 10:34:32
● 2021-06-16 15:44:58
● 2026-07-30 21:52:06

●NSns2.krystal.co.uk2026-02-16 → 2026-07-30 · 3 obs

○ 2021-06-16 15:44:58
● 2026-02-16 03:05:24
● 2026-07-30 21:52:06

●NSns2.krystal.uk2021-06-16 → 2026-07-30 · 3 obs

○ 2017-06-17 10:34:32
● 2021-06-16 15:44:58
● 2026-07-30 21:52:06

○NSultra103.uk2.net2015-07-19 → 2017-06-17 · 4 obs

● 2015-07-19 09:16:54
● 2017-06-17 10:34:32
○ 2021-06-16 15:44:58
○ 2026-07-30 21:52:06

○NSultra104.uk2.net2015-07-19 → 2017-06-17 · 4 obs

● 2015-07-19 09:16:54
● 2017-06-17 10:34:32
○ 2021-06-16 15:44:58
○ 2026-07-30 21:52:06

○MXmx.istructe.com.cust.a.hostedemail.com2015-07-19 → 2017-06-17 · 4 obs

● 2015-07-19 09:16:54
● 2017-06-17 10:34:32
○ 2021-06-16 15:44:58
○ 2026-07-30 21:52:06

○MXmx1.krystal.co.uk2021-06-16 → 2021-06-16 · 4 obs

○ 2017-06-17 10:34:32
● 2021-06-16 15:44:58
○ 2026-02-16 03:05:24
○ 2026-07-30 21:52:06

●MXmx1.krystal.uk2026-02-16 → 2026-07-30 · 3 obs

○ 2021-06-16 15:44:58
● 2026-02-16 03:05:24
● 2026-07-30 21:52:06

○MXmx2.krystal.co.uk2021-06-16 → 2021-06-16 · 4 obs

○ 2017-06-17 10:34:32
● 2021-06-16 15:44:58
○ 2026-02-16 03:05:24
○ 2026-07-30 21:52:06

●MXmx2.krystal.uk2026-02-16 → 2026-07-30 · 3 obs

○ 2021-06-16 15:44:58
● 2026-02-16 03:05:24
● 2026-07-30 21:52:06

●A185.194.90.212026-02-16 → 2026-07-30 · 3 obs

○ 2021-06-16 15:44:58
● 2026-02-16 03:05:24
● 2026-07-30 21:52:06

○A46.23.69.442016-03-04 → 2017-06-17 · 5 obs

○ 2015-07-19 09:16:54
● 2016-03-04 13:28:34
● 2017-06-17 10:34:32
○ 2021-06-16 15:44:58
○ 2026-07-30 21:52:06

○A77.72.1.172021-06-16 → 2021-06-16 · 4 obs

○ 2017-06-17 10:34:32
● 2021-06-16 15:44:58
○ 2026-02-16 03:05:24
○ 2026-07-30 21:52:06

○A83.170.64.812015-07-19 → 2017-06-17 · 4 obs

● 2015-07-19 09:16:54
● 2017-06-17 10:34:32
○ 2021-06-16 15:44:58
○ 2026-07-30 21:52:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, a.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net...	-
istructe.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 istructe.com (unsigned zone)

⏱️ Timing

Total: 517ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.194.90.21`
NS	2	`ns1.krystal.uk, ns2.krystal.uk`
MX	2	`mx2.krystal.uk (pri: 20), mx1.krystal.uk (pri: 10)`
TXT	1	`v=spf1 ip4:185.194.90.21 ip4:77.72.1.17`
SOA	1	`ns1.krystal.uk admin.k-validator-dende-l`

Analysis

IP Addresses

istructe.com points to a single IP number: 185.194.90.21.

Additional host names — cuando.co.uk, elopement-packages.co.uk, theparas.co.uk and two others — share IP numbers with istructe.com.

Name Servers

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

istructe.com shares at least some of its name servers with other domains, including maxw.com, iova.pro, desolation-angels.co.uk and two others.

These name servers are frequently seen alongside ns1.cloudhosting.uk, ns2.cloudhosting.uk, ns1.krystal.io and 5 other name servers.

The four host names ns1.krystal.uk, ns2.krystal.uk, ns1.krystal.co.uk and ns2.krystal.co.uk each resolve to a single IP address. ns1.krystal.uk and ns1.krystal.co.uk both point to 77.72.0.11, while ns2.krystal.uk and ns2.krystal.co.uk both point to 139.162.230.184.

ns1.krystal.uk and ns1.krystal.co.uk are host names that each point to 77.72.0.11 IP addresses.

ns2.krystal.uk and ns2.krystal.co.uk are host names that each point to 139.162.230.184 IP addresses.

Mail Servers

istructe.com has two mail servers: mx1.krystal.uk and mx2.krystal.uk.

istructe.com shares the same mail server setup as other domains, including greatermanchestervictimsservices.com, zoebroughton.com, zema.hu and two others.

istructe.com shares at least some of its mail servers with other domains, such as shortbrothersaviationpioneers.co.uk.

mx1.krystal.uk and mx2.krystal.uk each resolve to two IP addresses: mx1.krystal.uk points to 185.53.56.44 and 185.53.56.46, while mx2.krystal.uk points to 185.53.56.45 and 185.53.56.47.