DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
certum.co.uk runs on IONOS, with DNS by Azure DNS and email configured.
- Hosting network
- IONOSAS8560IONOS
- Managed DNS
- Azure DNS
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 513,215 other sites on IONOS. Stable here since we started watching (Sep 18, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to certum-wp.mysrv.cloud.
DNS Records for certum.co.uk
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| certum.co.uk | A | 0 | 213.171.208.37 | |
| certum.co.uk | TXT | 0 | google-site-verification=-SMqu6OtnT50gvTuIc20FuVo4MoZ9shKloo0v_RYu1M | |
| certum.co.uk | TXT | 0 | MS=ms90315106 | |
| certum.co.uk | TXT | 0 | v=spf1 ip4:62.232.9.34 include:autotask.net include:spf.protection.outlook.com include:spf.exclaimer.net include:spf1.emailsecurity.app include:mailgun.org include:spf.unionstreet.co.uk -all | |
| certum.co.uk | SOA | 300 | ns1-01.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300 | |
| certum.co.uk | MX | 0 | 10 | mx2-eu.emailsecurity.app |
| certum.co.uk | MX | 0 | mx1-eu.emailsecurity.app | |
| certum.co.uk | NS | 0 | ns3-01.azure-dns.org | |
| certum.co.uk | NS | 0 | ns2-01.azure-dns.net | |
| certum.co.uk | NS | 0 | ns4-01.azure-dns.info | |
| certum.co.uk | NS | 0 | ns1-01.azure-dns.com | |
| www.certum.co.uk | CNAME | 0 | certum-wp.mysrv.cloud | |
| www.certum.co.uk | A | 0 | 213.171.208.37 |
Get alerted the moment certum.co.uk's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch certum.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