DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
osterna.co.uk runs on Cloudflare, with DNS by Cloudflare and email via Mimecast.
- Hosting network
- CloudflareAS13335Cloudflare
- Managed DNS
- Cloudflare
- Mimecast
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 3,221,304 other sites on Cloudflare. Stable here since we started watching (Sep 20, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for osterna.co.uk
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| osterna.co.uk | AAAA | 0 | 2606:4700:3034::6815:219f | |
| osterna.co.uk | AAAA | 0 | 2606:4700:3031::ac43:a4c8 | |
| osterna.co.uk | SOA | 1800 | carl.ns.cloudflare.com dns.cloudflare.com 2415200399 10000 2400 604800 1800 | |
| osterna.co.uk | A | 0 | 104.21.33.159 | |
| osterna.co.uk | A | 0 | 172.67.164.200 | |
| osterna.co.uk | MX | 0 | 10 | eu-smtp-inbound-1.mimecast.com |
| osterna.co.uk | MX | 0 | 10 | eu-smtp-inbound-2.mimecast.com |
| osterna.co.uk | NS | 0 | carl.ns.cloudflare.com | |
| osterna.co.uk | NS | 0 | emily.ns.cloudflare.com | |
| osterna.co.uk | TXT | 0 | 0ed1fe018ae8d19ea6ebf74b7a924375a8b77045b0 | |
| osterna.co.uk | TXT | 0 | apple-domain-verification=SeeMCKW98Qv7mDZJ | |
| osterna.co.uk | TXT | 0 | v=spf1 ip4:192.254.125.237/32 ip4:153.92.242.237/32 ip4:168.245.93.86/32 ip4:109.104.97.164/32 include:eu._netblocks.mimecast.com include:_spf.salesforce.com include:spf.protection.outlook.com include:spf.uk.exclaimer.net include:mailgun.org -all | |
| osterna.co.uk | TXT | 0 | 00DQH000009Lnjh=1TBTm00000003cD | |
| osterna.co.uk | TXT | 0 | atlassian-domain-verification=rSNPgXtdK2aBdcq/29r1/kR7hbdDejoi9KeLZZc4nyh3alnTbe963zfvjThrCA2G | |
| osterna.co.uk | TXT | 0 | google-site-verification=VKFCEvk25Aa6Rdgc0fu9hADdpw26HjHOSHaolj27vrI | |
| osterna.co.uk | TXT | 0 | MS=ms72680980 | |
| www.osterna.co.uk | AAAA | 0 | 2606:4700:3031::ac43:a4c8 | |
| www.osterna.co.uk | AAAA | 0 | 2606:4700:3034::6815:219f | |
| www.osterna.co.uk | A | 0 | 172.67.164.200 | |
| www.osterna.co.uk | A | 0 | 104.21.33.159 |
Get alerted the moment osterna.co.uk's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch osterna.co.uk continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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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