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Hosting & Network
sos-dcr.cz runs on AS15685, with email via Google Workspace.
- Hosting network
- AS15685AS15685
- Managed DNS
- Self-hosted / other
- Google Workspace
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 12,231 other sites on AS15685. Stable here since we started watching (Sep 2, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to sos-dcr.cz.
DNS Records for sos-dcr.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| sos-dcr.cz | MX | 0 | 20 | alt2.aspmx.l.google.com |
| sos-dcr.cz | MX | 0 | 30 | aspmx3.googlemail.com |
| sos-dcr.cz | MX | 0 | 10 | aspmx.l.google.com |
| sos-dcr.cz | MX | 0 | 20 | alt1.aspmx.l.google.com |
| sos-dcr.cz | MX | 0 | 30 | aspmx5.googlemail.com |
| sos-dcr.cz | MX | 0 | 30 | aspmx4.googlemail.com |
| sos-dcr.cz | MX | 0 | 30 | aspmx2.googlemail.com |
| sos-dcr.cz | TXT | 0 | v=spf1 a mx include:_spf.4ws.cz include:_spf.google.com include:smtp.spcnet.cz include:spf.skolaonline.cz ~all | |
| sos-dcr.cz | SOA | 3600 | ns.grdns.cz admin.forpsi.com 2025051601 14400 3600 2592000 3600 | |
| sos-dcr.cz | NS | 0 | ns.grdns.cz | |
| sos-dcr.cz | NS | 0 | ns.grdns.it | |
| sos-dcr.cz | A | 0 | 77.78.106.36 | |
| sos-dcr.cz | AAAA | 0 | 2001:1528:114::525 | |
| www.sos-dcr.cz | A | 0 | 77.78.106.36 | |
| www.sos-dcr.cz | NS | 0 | ns.grdns.it | |
| www.sos-dcr.cz | NS | 0 | ns.grdns.cz | |
| www.sos-dcr.cz | SOA | 3600 | ns.grdns.cz admin.forpsi.com 2025051601 14400 3600 2592000 3600 | |
| www.sos-dcr.cz | AAAA | 0 | 2001:1528:114::525 | |
| www.sos-dcr.cz | TXT | 0 | v=spf1 a mx include:_spf.4ws.cz include:_spf.google.com include:smtp.spcnet.cz include:spf.skolaonline.cz ~all | |
| www.sos-dcr.cz | MX | 0 | 30 | aspmx2.googlemail.com |
| www.sos-dcr.cz | MX | 0 | 30 | aspmx3.googlemail.com |
| www.sos-dcr.cz | MX | 0 | 30 | aspmx5.googlemail.com |
| www.sos-dcr.cz | MX | 0 | 20 | alt1.aspmx.l.google.com |
| www.sos-dcr.cz | MX | 0 | 20 | alt2.aspmx.l.google.com |
| www.sos-dcr.cz | MX | 0 | 10 | aspmx.l.google.com |
| www.sos-dcr.cz | MX | 0 | 30 | aspmx4.googlemail.com |
| www.sos-dcr.cz | CNAME | 0 | sos-dcr.cz |
Get alerted the moment sos-dcr.cz's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch sos-dcr.cz continuously, notifying you the moment anything moves across all three signals:
Uptime
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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.
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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