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Hosting & Network
rsts.cz runs on AS198519, with email via Microsoft 365.
- Hosting network
- AS198519AS198519
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- Set
Sits alongside 3 other sites on AS198519. Stable here since we started watching (Aug 3, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for rsts.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| rsts.cz | CAA | 0 | 0 issue pki.goog; cansignhttpexchanges=yes | |
| rsts.cz | CAA | 0 | 0 issue comodoca.com | |
| rsts.cz | CAA | 0 | 0 issuewild pki.goog; cansignhttpexchanges=yes | |
| rsts.cz | CAA | 0 | 0 issue digicert.com; cansignhttpexchanges=yes | |
| rsts.cz | CAA | 0 | 0 issuewild ssl.com | |
| rsts.cz | CAA | 0 | 0 issuewild digicert.com; cansignhttpexchanges=yes | |
| rsts.cz | CAA | 0 | 0 issue amazon.com | |
| rsts.cz | CAA | 0 | 0 issue letsencrypt.org | |
| rsts.cz | CAA | 0 | 0 issuewild letsencrypt.org | |
| rsts.cz | CAA | 0 | 0 issuewild comodoca.com | |
| rsts.cz | CAA | 0 | 0 issue ssl.com | |
| rsts.cz | A | 0 | 185.250.73.131 | |
| rsts.cz | A | 0 | 185.250.72.131 | |
| rsts.cz | SOA | 1800 | blue.foundationdns.com dns.cloudflare.com 2410888511 10000 2400 604800 1800 | |
| rsts.cz | MX | 0 | rbinternational-com.mail.protection.outlook.com | |
| rsts.cz | NS | 0 | blue.foundationdns.com | |
| rsts.cz | NS | 0 | blue.foundationdns.org | |
| rsts.cz | NS | 0 | blue.foundationdns.net | |
| rsts.cz | TXT | 0 | MS=ms63250367 | |
| rsts.cz | TXT | 0 | v=spf1 ip4:90.182.24.77 ip4:194.228.116.57 ip4:82.99.163.197 ip4:62.168.7.193 ip4:82.99.162.232 ip4:62.168.6.253 ip4:82.99.163.199 ip4:62.168.7.111 ip4:185.250.73.19 ip4:185.250.72.23 mx include:spf.protection.outlook.com ~all | |
| rsts.cz | TXT | 0 | _zbwb6qwbi8fkqpw0p5g6h585orwtypi | |
| rsts.cz | TXT | 0 | tGh6ThiaZ0Bh7aTo30utQ77v1Bv70jSFgfM5S83GUYd1YiwvrhK4RGaeC051fS2OArCajfTNud+cWE9F29tLVw== | |
| rsts.cz | TXT | 0 | knowbe4-site-verification=d3e68e80f165179a4d78ec512c990287 | |
| rsts.cz | TXT | 0 | hd7rbvclk66t0518m1qgxcxsfkxxy0wq | |
| rsts.cz | TXT | 0 | zkz433m90nzxst16smdqj2wmk5b6lxdw | |
| www.rsts.cz | A | 0 | 185.250.72.131 | |
| www.rsts.cz | A | 0 | 185.250.73.131 |
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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