DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
castnet.co.uk runs on Cloudflare, with DNS by Cloudflare and email via Google Workspace.
- Hosting network
- CloudflareAS13335Cloudflare
- Managed DNS
- Cloudflare
- Google Workspace
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 4,999+ other sites on Cloudflare. Stable here since we started watching (Jul 20, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for castnet.co.uk
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| castnet.co.uk | A | 0 | 104.21.22.206 | |
| castnet.co.uk | A | 0 | 172.67.206.237 | |
| castnet.co.uk | SOA | 1800 | arnold.ns.cloudflare.com dns.cloudflare.com 2405848436 10000 2400 604800 1800 | |
| castnet.co.uk | NS | 0 | arnold.ns.cloudflare.com | |
| castnet.co.uk | NS | 0 | serena.ns.cloudflare.com | |
| castnet.co.uk | TXT | 0 | v=spf1 include:_spf.google.com ~all | |
| castnet.co.uk | TXT | 0 | google-site-verification=rfJeT1TKbeWN_Rmdi_17FfNYItWIy86zC9DwjHSEGn4 | |
| castnet.co.uk | MX | 0 | 1 | smtp.google.com |
| castnet.co.uk | AAAA | 0 | 2606:4700:3030::ac43:ceed | |
| castnet.co.uk | AAAA | 0 | 2606:4700:3034::6815:16ce | |
| www.castnet.co.uk | A | 0 | 104.21.22.206 | |
| www.castnet.co.uk | A | 0 | 172.67.206.237 | |
| www.castnet.co.uk | AAAA | 0 | 2606:4700:3034::6815:16ce | |
| www.castnet.co.uk | AAAA | 0 | 2606:4700:3030::ac43:ceed |
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain