DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
do.cr runs on A2 Hosting, with email via Microsoft 365.
- Hosting network
- A2 HostingAS55293A2 Hosting
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 4,999+ other sites on A2 Hosting. Stable here since we started watching (Aug 28, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to do.cr.
DNS Records for do.cr
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| do.cr | TXT | 0 | v=spf1 +a +mx +ip4:68.66.226.117 ip4:186.15.86.44 include:spf.protection.outlook.com include:spf.a2hosting.com include:emailsrvr.com ~all | |
| do.cr | TXT | 0 | MS=ms15210623 | |
| do.cr | SOA | 86400 | ns1.a2hosting.com root.az1-ts101.a2hosting.com 2026081701 3600 1800 1209600 86400 | |
| do.cr | A | 0 | 68.66.226.117 | |
| do.cr | MX | 0 | do-cr.mail.protection.outlook.com | |
| do.cr | NS | 0 | ns1.a2hosting.com | |
| do.cr | NS | 0 | ns3.a2hosting.com | |
| do.cr | NS | 0 | ns4.a2hosting.com | |
| do.cr | NS | 0 | ns2.a2hosting.com | |
| www.do.cr | A | 0 | 68.66.226.117 | |
| www.do.cr | NS | 0 | ns3.a2hosting.com | |
| www.do.cr | NS | 0 | ns4.a2hosting.com | |
| www.do.cr | NS | 0 | ns2.a2hosting.com | |
| www.do.cr | NS | 0 | ns1.a2hosting.com | |
| www.do.cr | SOA | 86400 | ns1.a2hosting.com root.az1-ts101.a2hosting.com 2026081701 3600 1800 1209600 86400 | |
| www.do.cr | CNAME | 0 | do.cr | |
| www.do.cr | MX | 0 | do-cr.mail.protection.outlook.com | |
| www.do.cr | TXT | 0 | MS=ms15210623 | |
| www.do.cr | TXT | 0 | v=spf1 +a +mx +ip4:68.66.226.117 ip4:186.15.86.44 include:spf.protection.outlook.com include:spf.a2hosting.com include:emailsrvr.com ~all |
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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