DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
bio4.co.uk runs on AS31463, with email configured.
- Hosting network
- AS31463AS31463
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 174 other sites on AS31463. Stable here since we started watching (Jul 18, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for bio4.co.uk
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| bio4.co.uk | SOA | 300 | ns1.5rlinternet.net hostmaster\.5rlinternet.net 1504544332 3600 600 1203600 300 | |
| bio4.co.uk | MX | 0 | 10 | mail.bio4.co.uk |
| bio4.co.uk | A | 0 | 178.17.37.173 | |
| bio4.co.uk | NS | 0 | ns2.5rlinternet.net | |
| bio4.co.uk | NS | 0 | ns1.5rlinternet.net | |
| www.bio4.co.uk | A | 0 | 178.17.37.173 |
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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