Website Uptime Monitor
Monitor website availability and server information for any domain
horse21.nl
Uptime & Server Information
Current Status
Historical Data
| Date | Status | Server |
|---|---|---|
| 8/10/2026, 5:19:40 AM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 7/28/2026, 6:49:24 AM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 7/24/2026, 2:03:41 AM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 7/13/2026, 4:03:05 AM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 7/10/2026, 7:37:24 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 7/4/2026, 2:54:12 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 6/30/2026, 1:56:17 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 6/21/2026, 1:46:48 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 6/18/2026, 8:51:46 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 6/14/2026, 9:15:52 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 6/10/2026, 3:49:10 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 5/22/2026, 12:14:57 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 4/24/2026, 5:19:26 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 4/23/2026, 3:45:37 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 2/18/2026, 2:34:37 PM | Inactive | Unknown |
| 1/31/2026, 12:12:01 PM | Inactive | Unknown |
| 1/19/2026, 8:13:50 AM | Inactive | Unknown |
| 1/16/2026, 7:57:45 PM | Inactive | Unknown |
| 12/12/2025, 2:36:30 AM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 11/27/2025, 6:52:32 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 10/13/2025, 5:08:26 AM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 10/1/2025, 5:45:09 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 8/26/2025, 2:26:48 PM | Inactive | Unknown |
| 8/21/2025, 11:29:55 AM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 7/28/2025, 4:39:14 AM | Inactive | Unknown |
| 7/15/2025, 7:18:39 AM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 7/7/2025, 3:31:29 AM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 6/23/2025, 5:56:19 AM | Inactive | Unknown |
| 6/10/2025, 6:53:06 AM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 5/26/2025, 11:36:05 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 5/23/2025, 3:21:56 PM | Active | Caddy, Microsoft-HTTPAPI/2.0 |
| 4/12/2025, 12:31:12 AM | 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.
Metrics we monitor
- Uptime percentage: The percentage of time your website is accessible
- Response time: How quickly your server responds to requests
- Status codes: HTTP response codes indicating server status
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.