Website Uptime Monitor
Monitor website availability and server information for any domain
czc.cz
Uptime & Server Information
Current Status
Observed Changes
| Date | Status | Server |
|---|---|---|
| 8/28/2026, 7:25:27 AM | Active | Unknown |
| 7/18/2026, 3:39:09 AM | Active | Unknown |
| 6/4/2026, 11:16:02 AM | Inactive | Unknown |
| 4/16/2026, 8:16:59 PM | Active | Unknown |
| 4/8/2026, 1:44:06 PM | Active | Unknown |
| 3/22/2026, 11:40:28 PM | Active | Unknown |
| 1/24/2026, 3:28:43 AM | Inactive | Unknown |
| 1/23/2026, 12:16:23 AM | Inactive | Unknown |
| 1/5/2026, 7:40:49 PM | Inactive | Unknown |
| 12/24/2025, 10:32:21 PM | Inactive | Unknown |
| 12/10/2025, 11:22:26 PM | Active | Unknown |
| 11/19/2025, 2:20:04 PM | Inactive | Unknown |
| 11/12/2025, 5:45:03 PM | Active | Unknown |
| 11/5/2025, 11:03:28 AM | Active | Unknown |
| 11/4/2025, 8:15:18 AM | Active | Unknown |
| 10/12/2025, 11:47:13 PM | Active | Unknown |
| 8/14/2025, 8:44:48 PM | Active | Unknown |
| 8/1/2025, 10:29:08 PM | Active | Unknown |
| 7/25/2025, 4:41:23 PM | Active | Unknown |
| 7/19/2025, 5:11:41 AM | Active | Unknown |
| 5/30/2025, 8:15:16 AM | Active | Unknown |
| 5/24/2025, 3:30:12 PM | Active | Unknown |
| 5/20/2025, 9:51:24 PM | Active | Unknown |
| 3/4/2025, 11:16:51 AM | Inactive | Unknown |
| 2/18/2025, 8:13:51 PM | Inactive | Unknown |
| 2/1/2025, 12:18:53 PM | Inactive | Unknown |
Don't just check uptime once — watch it 24/7
This is a one-time check. Turn on monitoring and we'll watch the domains that matter to you continuously, notifying you the moment anything moves across all three signals:
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
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
Free for your first domain: uptime, DNS, and certificate together. No credit card.
About Website Uptime Monitoring
Use the Who.is uptime information to track the availability and server information of websites. This helps track:
- Website availability and response status
- Server software and configuration
- Meta information including titles and descriptions
- Historical uptime patterns
This information is valuable for website owners, system administrators, and anyone interested in monitoring website reliability and performance.
What this page reports
- Last status change: When we last saw a site switch between reachable and unreachable
- Last downtime: When a site was most recently seen down, and whether it has come back
- Server and meta information: The server software, page title and meta tags we last observed
We check a domain at most once a day and record an observation only when something changes, so these are the times a change was seen rather than the exact moment it happened. For continuous, minute-by-minute checks with alerting, use website monitoring.
Disclaimer: Who.is is not affiliated with, endorsed by, or connected to any of the domains displayed on this page. We provide this information as a public service for informational purposes only.