sim123.co.uk - robtex.com
sim123.co.uk
| DNSSEC | ⚠️ Not signed | ||||||
| A | 79.170.40.248🇬🇧 GD-EMEA-DC-LD579.170.40.0/21 Heart Internet Limited | ||||||
| PTR | web248.extendcp.co.uk | ||||||
| NS | ns2.mainnameserver.com ⭐ | ||||||
| A | 79.170.43.3🇬🇧 GD-EMEA-DC-LD579.170.40.0/21 Heart Internet Limited | ||||||
| PTR | ns2.mainnameserver.com | ||||||
| NS | ns.mainnameserver.com | ||||||
| A | 79.170.40.2🇬🇧 GD-EMEA-DC-LD579.170.40.0/21 Heart Internet Limited | ||||||
| PTR | ns1.mainnameserver.com | ||||||
| MX | mail.sim123.co.uk ⭐ | ||||||
| A | 79.170.40.86🇬🇧 GD-EMEA-DC-LD579.170.40.0/21 Heart Internet Limited | ||||||
| PTR | mail86.extendcp.co.uk | ||||||
| SOA | ns.mainnameserver.comhostmaster@mainnameserver.com 2024-09-12 #69 | ||||||
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=1776023231 | ||||||
rank #13133 in the tld
WOT: SAFE (74/100)
Subdomains
mail.sim123.co.uk |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns.mainnameserver.com2026-02-15 → 2026-04-12 · 2 obs
● 2026-04-12 20:14:38
●NSns2.mainnameserver.com2026-02-15 → 2026-04-12 · 2 obs
● 2026-04-12 20:14:38
●MXmail.sim123.co.uk2026-02-15 → 2026-04-12 · 2 obs
● 2026-04-12 20:14:38
●A79.170.40.2482026-02-15 → 2026-04-12 · 2 obs
● 2026-04-12 20:14:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| uk | nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk... | - |
| sim123.co.uk | ns2.mainnameserver.com, ns.mainnameserver.com | - |
✅ Authoritative Response
Server:79.170.43.3
NS records: ns2.mainnameserver.com, ns.mainnameserver.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sim123.co.uk (unsigned zone)
⏱️ Timing
Total: 586ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 79.170.40.248 |
| NS | 2 | ns2.mainnameserver.com, ns.mainnameserver.com |
| MX | 1 | mail.sim123.co.uk (pri: 10) |
| SOA | 1 | ns.mainnameserver.com hostmaster.mainnam |
Analysis
Hierarchy
sim123.co.uk is the parent of mail.sim123.co.uk.
IP Addresses
sim123.co.uk points to a single IP number: 79.170.40.248.
other host names for instance customconstructions.co.uk, mail.forbesfitness.co.uk, bluemark.biz, stockportplaza.com and imagebox.be share IP numbers with sim123.co.uk.
Name Servers
sim123.co.uk is delegated to two name servers: ns2.mainnameserver.com and ns.mainnameserver.com.
sim123.co.uk shares the same name server setup as other domains, for example infectioncontrol.training, wales.business, screenadvantage.com, embedded-talent.com and fisherdaysolicitors.co.uk.
sim123.co.uk at least partially shares name servers with other domains, for instance sirius-design.com, wessingtoncryogenics.co.uk, drpvalves.com, merolico.com and conistonbrewery.com.
These name servers are commonly used with ns2.heartinternet.co.uk, ns1.mainnameserver.com, ns.heartinternet.co.uk and ns1.heartinternet.co.uk.
Host names with one IP number:
The host ns2.mainnameserver.com points to 79.170.43.3 and the host ns.mainnameserver.com points to 79.170.40.2.
Mail Servers
sim123.co.uk is handled by a single mail server, mail.sim123.co.uk.
Host name mail.sim123.co.uk points to IP address 79.170.40.86.