`cjb-computing.com`

DNSSEC	⚠️ Not signed
A	109.228.47.137^{🇬🇧 IONOS-AS109.228.0.0/18 Fasthosts Internet Ltd}
		PTR	`mail.themediasite.co.uk`
NS	`ns.cjb-computing.com` ⭐ ⚠️ Not in parent delegation
		A	109.228.47.137^{🇬🇧 IONOS-AS109.228.0.0/18 Fasthosts Internet Ltd}
			PTR	`mail.themediasite.co.uk`
NS	`ns.positivecomputing.co.uk` ⚠️ Not in zone NS records
NS	`ns2.positivecomputing.co.uk` ⚠️ Not in zone NS records
		A	109.228.47.137^{🇬🇧 IONOS-AS109.228.0.0/18 Fasthosts Internet Ltd}
			PTR	`mail.themediasite.co.uk`
MX	`mail.cjb-computing.com` ⭐
		A	109.228.47.137^{🇬🇧 IONOS-AS109.228.0.0/18 Fasthosts Internet Ltd}
			PTR	`mail.themediasite.co.uk`
TXT	`v=spf1 +a +mx -all`
SOA	`ns.cjb-computing.com`richard@ruralbroadband.co.uk serial=1741860600

`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=1774434762

Subdomains

ns.cjb-computing.com

mail.cjb-computing.com

Same first word

cjb-computing.com

DNS History

6 records (5 active, 1 former)

●NSns.cjb-computing.com2015-08-12 → 2026-03-25 · 2 obs

● 2015-08-12 23:22:54
● 2026-03-25 11:03:04

●NSns.positivecomputing.co.uk2026-03-25 → 2026-03-25 · 3 obs

○ 2026-03-17 22:11:18
● 2026-03-25 06:18:18
● 2026-03-25 11:03:04

●NSns2.positivecomputing.co.uk2026-03-17 → 2026-03-25 · 3 obs

○ 2015-08-12 23:22:54
● 2026-03-17 22:11:18
● 2026-03-25 11:03:04

●MXmail.cjb-computing.com2015-08-12 → 2026-03-25 · 2 obs

● 2015-08-12 23:22:54
● 2026-03-25 11:03:04

●A109.228.47.1372026-03-17 → 2026-03-25 · 3 obs

○ 2017-05-28 07:07:06
● 2026-03-17 22:11:18
● 2026-03-25 11:03:04

○A87.239.23.192015-08-12 → 2017-05-28 · 4 obs

● 2015-08-12 23:22:54
● 2017-05-28 07:07:06
○ 2026-03-17 22:11:18
○ 2026-03-25 11:03:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
cjb-computing.com	ns.positivecomputing.co.uk, ns2.positivecomputing.co.uk	-

✅ Authoritative Response

Server:109.228.47.137

NS records: ns.positivecomputing.co.uk, ns2.positivecomputing.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cjb-computing.com (unsigned zone)

⏱️ Timing

Total: 1005ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`109.228.47.137`
NS	1	`ns.cjb-computing.com`
MX	1	`mail.cjb-computing.com (pri: 10)`
TXT	1	`v=spf1 +a +mx -all`
SOA	1	`ns.cjb-computing.com richard.ruralbroadb`

Analysis

Hierarchy

cjb-computing.com is a parent of ns.cjb-computing.com and mail.cjb-computing.com.

IP Addresses

cjb-computing.com points to a single IP number: 109.228.47.137.

Other host names, for instance ns.posmail.co.uk, posmail.co.uk, ns2.positivecomputing.co.uk, ns1.premierefireworks.co.uk and mail.posmail.co.uk share IP numbers with cjb-computing.com.

Name Servers

The delegation for cjb-computing.com is handled by three name servers: ns.cjb-computing.com, ns2.positivecomputing.co.uk and ns.positivecomputing.co.uk.

cjb-computing.com partially shares name servers with other domains; for instance positivecomputing.co.uk, hsrecruitment.co.uk and savagerecordings.com.

these name servers are commonly used with ns1.themediasite.co.uk, ns2.themediasite.co.uk and ns1.positivecomputing.co.uk.

Host names sharing a single IP:

ns.cjb-computing.com points to 109.228.47.137

ns2.positivecomputing.co.uk points to 109.228.47.137

Host names that point to 109.228.47.137: ns.cjb-computing.com and ns2.positivecomputing.co.uk

Mail Servers

cjb-computing.com is handled by a single mail server, mail.cjb-computing.com.

mail.cjb-computing.com points to a single IP: 109.228.47.137.

cjb-computing.com - robtex.com