DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
active24.cz runs on AS51013, with email configured.
- Hosting network
- AS51013AS51013
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Enabled
- CAA pinning
- Set
Sits alongside 44,761 other sites on AS51013. Stable here since we started watching (Jul 16, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for active24.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| active24.cz | SOA | 3600 | alfa.ns.active24.cz hostmaster.active24.cz 2026102303 14400 3600 604800 3600 | |
| active24.cz | AAAA | 0 | 2a00:4b40:1000:4:37:9:169:173 | |
| active24.cz | AAAA | 0 | 2a00:4b40:1000:4:37:9:169:171 | |
| active24.cz | AAAA | 0 | 2a00:4b40:1000:4:37:9:169:172 | |
| active24.cz | A | 0 | 37.9.169.173 | |
| active24.cz | A | 0 | 37.9.169.171 | |
| active24.cz | A | 0 | 37.9.169.172 | |
| active24.cz | MX | 0 | 10 | mx.spamfilter.io |
| active24.cz | CAA | 0 | 0 issuewild sectigo.com | |
| active24.cz | CAA | 0 | 0 issue sectigo.com | |
| active24.cz | CAA | 0 | 0 issue letsencrypt.org | |
| active24.cz | CAA | 0 | 0 issue thawte.com | |
| active24.cz | CAA | 0 | 0 iodef mailto:caa@active24.cz | |
| active24.cz | CAA | 0 | 0 issuewild thawte.com | |
| active24.cz | NS | 0 | beta.ns.active24.cz | |
| active24.cz | NS | 0 | gama.ns.active24.sk | |
| active24.cz | NS | 0 | alfa.ns.active24.cz | |
| active24.cz | TXT | 0 | OSSRH-58398 | |
| active24.cz | TXT | 0 | v=spf1 mx ip4:81.95.96.0/20 ip4:31.15.8.0/21 ip4:185.12.196.0/22 ip4:185.26.229.213 ip6:2a02:4a8:ac24::/48 ip4:212.123.41.224/28 include:_spf.hostedemail.com include:servers.mcsv.net include:spf.spamfilter.io include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com -all | |
| active24.cz | TXT | 0 | amazonses:eAOuVxlmO4a4k2BCjPK4EFOjyQUfFEFWniuTB0Dmphk= | |
| active24.cz | TXT | 0 | google-site-verification=4lO5Pxtc--qLdlzLBO92yZsZ-tZ8zm2BrhC-bCVPDL0 | |
| active24.cz | TXT | 0 | facebook-domain-verification=bxdobw5c71ymo1s50cisodul6ydxxt | |
| active24.cz | TXT | 0 | have-i-been-pwned-verification=10638c872e65592e7e9859936bddef7b | |
| www.active24.cz | A | 0 | 37.9.169.173 | |
| www.active24.cz | A | 0 | 37.9.169.172 | |
| www.active24.cz | A | 0 | 37.9.169.171 | |
| www.active24.cz | AAAA | 0 | 2a00:4b40:1000:4:37:9:169:171 | |
| www.active24.cz | AAAA | 0 | 2a00:4b40:1000:4:37:9:169:173 | |
| www.active24.cz | AAAA | 0 | 2a00:4b40:1000:4:37:9:169:172 |
Get alerted the moment active24.cz's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch active24.cz continuously, notifying you the moment anything moves across all three signals:

Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT 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