rfconsult.uk - robtex.com
rfconsult.uk
| DNSSEC | ⚠️ Not signed | ||||||
| A | 77.72.1.45🇬🇧 KRYSTAL77.72.0.0/21 Krystal Hosting Ltd | ||||||
| PTR | teth-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 +ip4:77.72.1.45 include:relay.k.io ~all | ||||||
| SOA | ns1.krystal.ukadmin@k-validator-teth-lon1.krystal.uk 2026-03-25 #1 | ||||||
uk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns1.nic.uk ⭐ | ||||||
| NS | dns2.nic.uk | ||||||
| NS | dns3.nic.uk | ||||||
| NS | dns4.nic.uk | ||||||
| NS | nsa.nic.uk | ||||||
| NS | nsb.nic.uk | ||||||
| NS | nsc.nic.uk | ||||||
| NS | nsd.nic.uk | ||||||
| SOA | dns1.nic.ukhostmaster@nic.uk serial=1777073681 | ||||||
Same first word
Similar names
DNS History
12 records (5 active, 7 former)
○NSns0.lcn.com2015-11-11 → 2018-12-02 · 4 obs
● 2018-12-02 15:51:02
○ 2026-03-27 19:23:10
○ 2026-04-24 23:52:26
●NSns1.krystal.uk2026-03-27 → 2026-04-24 · 3 obs
● 2026-03-27 19:23:10
● 2026-04-24 23:52:26
○NSns1.lcn.com2015-11-11 → 2018-12-02 · 4 obs
● 2018-12-02 15:51:02
○ 2026-03-27 19:23:10
○ 2026-04-24 23:52:26
●NSns2.krystal.uk2026-03-27 → 2026-04-24 · 3 obs
● 2026-03-27 19:23:10
● 2026-04-24 23:52:26
○NSns2.lcn.com2018-12-02 → 2018-12-02 · 4 obs
● 2018-12-02 15:51:02
○ 2026-03-27 19:23:10
○ 2026-04-24 23:52:26
○MXmx0.lcn.com2015-11-11 → 2018-12-02 · 4 obs
● 2018-12-02 15:51:02
○ 2026-03-27 19:23:10
○ 2026-04-24 23:52:26
●MXmx1.krystal.uk2026-03-27 → 2026-04-24 · 3 obs
● 2026-03-27 19:23:10
● 2026-04-24 23:52:26
○MXmx1.lcn.com2015-11-11 → 2018-12-02 · 4 obs
● 2018-12-02 15:51:02
○ 2026-03-27 19:23:10
○ 2026-04-24 23:52:26
●MXmx2.krystal.uk2026-03-27 → 2026-04-24 · 3 obs
● 2026-03-27 19:23:10
● 2026-04-24 23:52:26
●A77.72.1.452026-03-27 → 2026-04-24 · 3 obs
● 2026-03-27 19:23:10
● 2026-04-24 23:52:26
○A94.126.40.332018-12-02 → 2018-12-02 · 4 obs
● 2018-12-02 15:51:02
○ 2026-03-27 19:23:10
○ 2026-04-24 23:52:26
○A94.126.40.412015-11-11 → 2016-04-06 · 4 obs
● 2016-04-06 23:39:48
○ 2018-12-02 15:51:02
○ 2026-04-24 23:52:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| uk | nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk... | - |
| rfconsult.uk | ns1.krystal.uk, ns2.krystal.uk | 2 records |
✅ Authoritative Response
Server:139.162.230.184
NS records: ns1.krystal.uk, ns2.krystal.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rfconsult.uk (unsigned zone)
⏱️ Timing
Total: 584ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 77.72.1.45 |
| NS | 2 | ns2.krystal.uk, ns1.krystal.uk |
| MX | 2 | mx2.krystal.uk (pri: 20), mx1.krystal.uk (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +ip4:77.72.1.45 include:re |
| SOA | 1 | ns1.krystal.uk admin.k-validator-teth-lo |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.krystal.uk, ns2.krystal.uk)
Analysis
IP Addresses
rfconsult.uk points to a single IP address: 77.72.1.45.
Other host names such as fusionsoft.co.uk, shop1.actinicexpress.co.uk, centreforlondon.org, firstforitrepairs.co.uk and solvant.co.uk share IP numbers with rfconsult.uk.
Name Servers
rfconsult.uk is delegated to two name servers: ns1.krystal.uk and ns2.krystal.uk.
rfconsult.uk uses the same name server setup as other domains, including riseupsinging.co.uk, casa-mestre.eu, proppal.co.uk, lakedistrictbikes.com and binders.no.
At least part of the name servers for rfconsult.uk are shared with other domains, for instance gsdevelopments.co.uk, arcturusclinic.co.uk, newgecko.com, drmikestroud.com and swstorage.co.uk.
these name servers are commonly used with the name servers ns1.krystal.co.uk, ns2.krystal.co.uk, ns1.cloudhosting.co.uk, ns2.cloudhosting.co.uk, ns1.uksrv.co.uk, ns2.uksrv.co.uk, ns1.krystal.io, ns2.krystal.io, ns3.krystal.io and ns4.krystal.io.
Hostnames with a single IP
ns1.krystal.uk resolves to: 77.72.0.11.
ns2.krystal.uk resolves to: 139.162.230.184.
Mail Servers
rfconsult.uk is handled by two mail servers: mx1.krystal.uk and mx2.krystal.uk.
rfconsult.uk uses the same mail server setup as other domains, for instance lellizzick.co.uk, revsoc21.uk, staycompared.com, osteopathic-practice.com and coracle.ltd.uk.
Host names with two IP numbers:
mx1.krystal.uk points to 185.53.56.44 and 185.53.56.46.
mx2.krystal.uk points to 185.53.56.45 and 185.53.56.47.