DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
mas.run runs on Cloudflare, with DNS by Cloudflare and email via Cloudflare Email.
- Hosting network
- CloudflareAS13335Cloudflare
- Managed DNS
- Cloudflare
- Cloudflare Email
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 4,652,705 other sites on Cloudflare. Stable here since we started watching (Jul 20, 2026).
DNS Records for mas.run
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| mas.run | MX | 0 | 33 | route2.mx.cloudflare.net |
| mas.run | MX | 0 | 71 | route3.mx.cloudflare.net |
| mas.run | MX | 0 | 32 | route1.mx.cloudflare.net |
| mas.run | SOA | 1800 | hasslo.ns.cloudflare.com dns.cloudflare.com 2415594349 10000 2400 604800 1800 | |
| mas.run | TXT | 0 | v=spf1 include:_spf.mx.cloudflare.net ~all | |
| mas.run | AAAA | 0 | 2606:4700:3031::ac43:c4c7 | |
| mas.run | AAAA | 0 | 2606:4700:3035::6815:cf8 | |
| mas.run | NS | 0 | magdalena.ns.cloudflare.com | |
| mas.run | NS | 0 | hasslo.ns.cloudflare.com | |
| mas.run | A | 0 | 172.67.196.199 | |
| mas.run | A | 0 | 104.21.12.248 | |
| www.mas.run | CNAME | 0 | mas.run | |
| www.mas.run | NS | 0 | magdalena.ns.cloudflare.com | |
| www.mas.run | NS | 0 | hasslo.ns.cloudflare.com | |
| www.mas.run | TXT | 0 | v=spf1 include:_spf.mx.cloudflare.net ~all | |
| www.mas.run | A | 0 | 172.66.45.30 | |
| www.mas.run | A | 0 | 172.66.46.226 | |
| www.mas.run | AAAA | 0 | 2606:4700:310c::ac42:2ee2 | |
| www.mas.run | AAAA | 0 | 2606:4700:310c::ac42:2d1e | |
| www.mas.run | MX | 0 | 71 | route3.mx.cloudflare.net |
| www.mas.run | MX | 0 | 33 | route2.mx.cloudflare.net |
| www.mas.run | MX | 0 | 32 | route1.mx.cloudflare.net |
| www.mas.run | SOA | 1800 | hasslo.ns.cloudflare.com dns.cloudflare.com 2415594349 10000 2400 604800 1800 |
Get alerted the moment mas.run's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch mas.run 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