`calciumimaging.com`

DNSSEC	⚠️ Not signed
A	77.72.1.43^{🇬🇧 KRYSTAL77.72.0.0/21 Krystal Hosting Ltd}
		PTR	`maridun-lon1.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}
			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 +a +mx +ip4:77.72.1.43 include:relay.k.io ~all`
SOA	`ns1.krystal.uk`admin@k-validator-maridun-lon1.krystal.uk 2026-03-24 #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=1774535142

Same first word

calciumimaging.com

DNS History

10 records (5 active, 5 former)

○NSns1.afternic.com2015-05-31 → 2017-03-20 · 4 obs

● 2015-05-31 04:03:56
● 2017-03-20 16:18:06
○ 2020-02-03 00:58:22
○ 2026-03-26 14:40:14

●NSns1.krystal.uk2026-03-10 → 2026-03-26 · 3 obs

○ 2020-02-03 00:58:22
● 2026-03-10 17:24:08
● 2026-03-26 14:40:14

○NSns1.uniregistrymarket.link2020-02-03 → 2020-02-03 · 4 obs

○ 2017-03-20 16:18:06
● 2020-02-03 00:58:22
○ 2026-03-10 17:24:08
○ 2026-03-26 14:40:14

●NSns2.krystal.uk2026-03-10 → 2026-03-26 · 3 obs

○ 2020-02-03 00:58:22
● 2026-03-10 17:24:08
● 2026-03-26 14:40:14

○NSns2.uniregistrymarket.link2020-02-03 → 2020-02-03 · 4 obs

○ 2017-03-20 16:18:06
● 2020-02-03 00:58:22
○ 2026-03-10 17:24:08
○ 2026-03-26 14:40:14

●MXmx1.krystal.uk2026-03-10 → 2026-03-26 · 2 obs

● 2026-03-10 17:24:08
● 2026-03-26 14:40:14

●MXmx2.krystal.uk2026-03-10 → 2026-03-26 · 2 obs

● 2026-03-10 17:24:08
● 2026-03-26 14:40:14

○A184.168.221.1042015-05-31 → 2017-03-20 · 4 obs

● 2015-05-31 04:03:56
● 2017-03-20 16:18:06
○ 2020-02-03 00:58:22
○ 2026-03-26 14:40:14

○A69.172.201.1532020-02-03 → 2020-02-03 · 4 obs

○ 2017-03-20 16:18:06
● 2020-02-03 00:58:22
○ 2026-03-10 17:24:08
○ 2026-03-26 14:40:14

●A77.72.1.432026-03-10 → 2026-03-26 · 3 obs

○ 2020-02-03 00:58:22
● 2026-03-10 17:24:08
● 2026-03-26 14:40:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net...	-
calciumimaging.com	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 calciumimaging.com (unsigned zone)

⏱️ Timing

Total: 866ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`77.72.1.43`
NS	2	`ns2.krystal.uk, ns1.krystal.uk`
MX	2	`mx1.krystal.uk (pri: 10), mx2.krystal.uk (pri: 20)`
TXT	1	`v=spf1 +a +mx +ip4:77.72.1.43 include:re`
SOA	1	`ns1.krystal.uk admin.k-validator-maridun`

Analysis

IP Addresses

calciumimaging.com resolves to one IP number: 77.72.1.43.

other host names including polaraspect.com, 2fs.org, thelastline.com, argb.co.uk and 99tangents.com share IP numbers with calciumimaging.com.

Name Servers

calciumimaging.com is delegated to two name servers ns1.krystal.uk and ns2.krystal.uk.

calciumimaging.com shares the same name server setup as other domains, for instance taylogic.com, thinkscotland.org, anzoid.net, twigg.de and ecoprintuk.com.

calciumimaging.com at least partially shares name servers with other domains, for instance perrextechnical.co.uk, openhousefestival.com, lrac.org.uk, crossfields.co.uk and tastygeezer.com.

These name servers are commonly used with the following name servers: ns1.krystal.co.uk, ns2.krystal.co.uk, ns1.cloudhosting.uk, ns2.cloudhosting.uk, ns1.cloudhosting.co.uk, ns2.cloudhosting.co.uk, ns1.uksrv.co.uk, ns2.uksrv.co.uk, ns1.krystal.io and ns2.krystal.io.

Host names with one IP number:

ns1.krystal.uk points to 77.72.0.11

ns2.krystal.uk points to 139.162.230.184

Mail Servers

Two mail servers handle calciumimaging.com: mx1.krystal.uk and mx2.krystal.uk.

calciumimaging.com shares the same mail server setup as other domains, for instance aquadreamspoolsandspas.com, booksteps.co.uk, william(0x6469636b).com, multiplicit.co.uk and altlimbpro.com.

Host names with two IP numbers:

The host name mx1.krystal.uk points to 185.53.56.44 and 185.53.56.46; the host name mx2.krystal.uk points to 185.53.56.45 and 185.53.56.47.

calciumimaging.com - robtex.com