DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
ctrlr.io runs on Microsoft Azure, with DNS by Azure DNS and email via IONOS.
- Hosting network
- Microsoft AzureAS8075Microsoft Azure
- Managed DNS
- Azure DNS
- IONOS
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 4,999+ other sites on Microsoft Azure. Stable here since we started watching (Aug 1, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to portal.ctrlr.io.
DNS Records for ctrlr.io
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| ctrlr.io | MX | 0 | 11 | mx01.ionos.com |
| ctrlr.io | MX | 0 | 10 | mx00.ionos.com |
| ctrlr.io | SOA | 300 | ns1-38.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300 | |
| ctrlr.io | TXT | 0 | mtfc93ard00igk52acn8dkmc7q | |
| ctrlr.io | TXT | 0 | v=spf1 include:_spf.perfora.net include:_spf.kundenserver.de -all | |
| ctrlr.io | TXT | 0 | google-site-verification=2r9VmlCi7UuPbXkhOhxvVDnUQ_DY0jTkBuUkl5wpzvE | |
| ctrlr.io | TXT | 0 | MS=ms37090805 | |
| ctrlr.io | TXT | 0 | v=spf1 include:_spf-us.ionos.com ~all | |
| ctrlr.io | NS | 0 | ns2-38.azure-dns.net | |
| ctrlr.io | NS | 0 | ns4-38.azure-dns.info | |
| ctrlr.io | NS | 0 | ns3-38.azure-dns.org | |
| ctrlr.io | NS | 0 | ns1-38.azure-dns.com | |
| ctrlr.io | A | 0 | 20.3.11.119 | |
| www.ctrlr.io | CNAME | 0 | portal.ctrlr.io | |
| www.ctrlr.io | A | 0 | 20.3.11.119 |
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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