DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
stackhero.io runs on Cloudflare, with DNS by Cloudflare and email via Proton.
- Hosting network
- CloudflareAS13335Cloudflare
- Managed DNS
- Cloudflare
- Proton
- IPv6 (AAAA)
- Enabled
- CAA pinning
- Set
Sits alongside 4,999+ other sites on Cloudflare. Stable here since we started watching (Aug 17, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for stackhero.io
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| stackhero.io | A | 0 | 104.21.23.117 | |
| stackhero.io | A | 0 | 172.67.210.212 | |
| stackhero.io | MX | 0 | 10 | mail.protonmail.ch |
| stackhero.io | MX | 0 | 20 | mailsec.protonmail.ch |
| stackhero.io | NS | 0 | dina.ns.cloudflare.com | |
| stackhero.io | NS | 0 | duke.ns.cloudflare.com | |
| stackhero.io | TXT | 0 | v=spf1 a:iqxvin.stackhero-network.com include:_spf.protonmail.ch mx -all | |
| stackhero.io | TXT | 0 | google-site-verification=bEml2AS6Xf4WJM1DcdTSpr27UNVnJbnEoanEJDeWL80 | |
| stackhero.io | TXT | 0 | protonmail-verification=921683bef81ce5193b68a5e464ff377aa5a671bb | |
| stackhero.io | SOA | 1800 | dina.ns.cloudflare.com dns.cloudflare.com 2411216650 10000 2400 604800 1800 | |
| stackhero.io | AAAA | 0 | 2606:4700:3036::6815:1775 | |
| stackhero.io | AAAA | 0 | 2606:4700:3034::ac43:d2d4 | |
| stackhero.io | CAA | 0 | 0 issuewild comodoca.com | |
| stackhero.io | CAA | 0 | 0 issuewild letsencrypt.org | |
| stackhero.io | CAA | 0 | 0 issuewild ; | |
| stackhero.io | CAA | 0 | 0 issue ssl.com | |
| stackhero.io | CAA | 0 | 0 issuewild pki.goog; cansignhttpexchanges=yes | |
| stackhero.io | CAA | 0 | 0 issue letsencrypt.org | |
| stackhero.io | CAA | 0 | 0 issuewild ssl.com | |
| stackhero.io | CAA | 0 | 0 issue pki.goog; cansignhttpexchanges=yes | |
| stackhero.io | CAA | 0 | 0 issue comodoca.com | |
| stackhero.io | CAA | 0 | 0 issue digicert.com; cansignhttpexchanges=yes | |
| stackhero.io | CAA | 0 | 0 issuewild digicert.com; cansignhttpexchanges=yes | |
| stackhero.io | CAA | 0 | 0 iodef mailto:security+caa@stackhero.io | |
| www.stackhero.io | AAAA | 0 | 2606:4700:3036::6815:1775 | |
| www.stackhero.io | AAAA | 0 | 2606:4700:3034::ac43:d2d4 | |
| www.stackhero.io | A | 0 | 104.21.23.117 | |
| www.stackhero.io | A | 0 | 172.67.210.212 |
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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