f5computing.co.uk - robtex.com
f5computing.co.uk
co.uk
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.nic.uk ⭐ ⚠️ Not in parent delegation | ||||||
| NS | dns2.nic.uk ⚠️ Not in parent delegation | ||||||
| NS | dns3.nic.uk ⚠️ Not in parent delegation | ||||||
| NS | dns4.nic.uk ⚠️ Not in parent delegation | ||||||
| NS | nsa.nic.uk ⚠️ Not in parent delegation | ||||||
| NS | nsb.nic.uk ⚠️ Not in parent delegation | ||||||
| NS | nsc.nic.uk ⚠️ Not in parent delegation | ||||||
| NS | nsd.nic.uk ⚠️ Not in parent delegation | ||||||
| SOA | dns1.nic.ukhostmaster@nominet.org.uk serial=1774548822 | ||||||
rank #13403 in the tld
WOT: SAFE (74/100)
Same first word
f5computing.co.uk |
DNS History
7 records (6 active, 1 former)
●NSns1.krystal.co.uk2026-03-12 → 2026-03-26 · 3 obs
● 2026-03-12 16:45:40
● 2026-03-26 18:25:42
●NSns1.uksrv.co.uk2018-05-27 → 2026-03-26 · 2 obs
● 2026-03-26 18:25:42
●NSns2.krystal.co.uk2026-03-12 → 2026-03-26 · 3 obs
● 2026-03-12 16:45:40
● 2026-03-26 18:25:42
●NSns2.uksrv.co.uk2018-05-27 → 2026-03-26 · 2 obs
● 2026-03-26 18:25:42
●MXf5computing-co-uk.mail.protection.outlook.com2018-05-27 → 2026-03-26 · 2 obs
● 2026-03-26 18:25:42
●A185.199.220.632026-03-12 → 2026-03-26 · 3 obs
● 2026-03-12 16:45:40
● 2026-03-26 18:25:42
○A77.72.4.1942018-05-27 → 2018-05-27 · 3 obs
○ 2026-03-12 16:45:40
○ 2026-03-26 18:25:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| uk | dns4.nic.uk, nsd.nic.uk, nsa.nic.uk, dns1.nic.uk... | - |
| f5computing.co.uk | ns1.krystal.co.uk, ns2.krystal.co.uk | 2 records |
✅ Authoritative Response
Server:77.72.0.11
NS records: ns1.krystal.co.uk, ns2.krystal.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for f5computing.co.uk (unsigned zone)
⏱️ Timing
Total: 632ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.199.220.63 |
| NS | 2 | ns2.uksrv.co.uk, ns1.uksrv.co.uk |
| MX | 1 | f5computing-co-uk.mail.protection.outloo |
| TXT | 2 | v=spf1 ip4:185.199.220.63 include:relay., google-site-verification=TRp0xWPqy3T6wzp |
| SOA | 1 | ns1.uksrv.co.uk james.f5computing.co.uk |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.krystal.co.uk, ns1.krystal.co.uk)
Analysis
IP Addresses
f5computing.co.uk points to an IP address: 185.199.220.63.
other host names include seawise-chartering.co.uk, www.jubilee-plus.org, mycreativeuk.com, wendyalexandrar.com and utsdigbeth.co.uk; they share IP numbers with f5computing.co.uk.
Name Servers
f5computing.co.uk delegates to four name servers: ns1.krystal.co.uk, ns2.krystal.co.uk, ns1.uksrv.co.uk and ns2.uksrv.co.uk.
f5computing.co.uk at least partially shares name servers with other domains, for instance islandcasinos.net, citystag.com, femalevoiceoverartist-uk.com, photobrief.eu and romansocietyrac.ac.uk.
these name servers are commonly used with ns1.krystal.uk, ns2.krystal.uk, ns1.cloudhosting.uk, ns2.cloudhosting.uk, ns1.krystal.io, ns2.krystal.io, ns3.krystal.io, ns4.krystal.io, ns1.uksrv.uk and ns2.uksrv.uk.
Host names with one IP:
ns1.krystal.co.uk points to 77.72.0.11.
ns2.krystal.co.uk points to 139.162.230.184.
ns1.uksrv.co.uk points to 77.72.0.11.
ns2.uksrv.co.uk points to 139.162.230.184.
Host names pointing to 77.72.0.11: ns1.krystal.co.uk and ns1.uksrv.co.uk.
Host names pointing to 139.162.230.184: ns2.krystal.co.uk and ns2.uksrv.co.uk.
Mail Servers
f5computing.co.uk is handled by a single mail server, f5computing-co-uk.mail.protection.outlook.com.
Hostname f5computing-co-uk.mail.protection.outlook.com resolves to eight IP numbers: 2a01:111:f403:ca04::b, 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::7, 2a01:111:f403:ca09::e, 52.101.68.16, 52.101.73.26, 52.101.73.28 and 52.101.73.153.