DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
rstack.com 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
- Set
Sits alongside 4,999+ other sites on Cloudflare. Stable here since we started watching (Jul 26, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for rstack.com
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| rstack.com | TXT | 0 | v=spf1 include:_spf.mx.cloudflare.net include:_spf.google.com ~all | |
| rstack.com | A | 0 | 104.21.23.108 | |
| rstack.com | A | 0 | 172.67.210.202 | |
| rstack.com | MX | 0 | 62 | route3.mx.cloudflare.net |
| rstack.com | MX | 0 | 7 | route2.mx.cloudflare.net |
| rstack.com | MX | 0 | 22 | route1.mx.cloudflare.net |
| rstack.com | AAAA | 0 | 2606:4700:3031::6815:176c | |
| rstack.com | AAAA | 0 | 2606:4700:3035::ac43:d2ca | |
| rstack.com | NS | 0 | summer.ns.cloudflare.com | |
| rstack.com | NS | 0 | melnicoff.ns.cloudflare.com | |
| rstack.com | SOA | 1800 | melnicoff.ns.cloudflare.com dns.cloudflare.com 2410172516 10000 2400 604800 1800 | |
| rstack.com | CAA | 0 | 0 issue comodoca.com | |
| rstack.com | CAA | 0 | 0 issue letsencrypt.org | |
| rstack.com | CAA | 0 | 0 issuewild letsencrypt.org | |
| rstack.com | CAA | 0 | 0 issue ssl.com | |
| rstack.com | CAA | 0 | 0 issue globalsign.com | |
| rstack.com | CAA | 0 | 0 issue digicert.com; cansignhttpexchanges=yes | |
| rstack.com | CAA | 0 | 0 issuewild digicert.com; cansignhttpexchanges=yes | |
| rstack.com | CAA | 0 | 0 issuewild comodoca.com | |
| rstack.com | CAA | 0 | 0 issue sectigo.com | |
| rstack.com | CAA | 0 | 0 issuewild pki.goog; cansignhttpexchanges=yes | |
| rstack.com | CAA | 0 | 0 issuewild ssl.com | |
| rstack.com | CAA | 0 | 0 issuewild sectigo.com | |
| rstack.com | CAA | 0 | 0 issue pki.goog; cansignhttpexchanges=yes | |
| rstack.com | CAA | 0 | 0 issuewild globalsign.com | |
| www.rstack.com | A | 0 | 172.67.210.202 | |
| www.rstack.com | A | 0 | 104.21.23.108 | |
| www.rstack.com | AAAA | 0 | 2606:4700:3031::6815:176c | |
| www.rstack.com | AAAA | 0 | 2606:4700:3035::ac43:d2ca |
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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
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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