Website Uptime Monitor
Monitor website availability and server information for any domain
04800.cn
Uptime & Server Information
Current Status
Historical Data
| Date | Status | Server |
|---|---|---|
| 7/23/2026, 12:30:44 PM | Active | nginx |
| 7/21/2026, 8:12:21 PM | Active | nginx |
| 6/13/2026, 1:55:27 AM | Active | nginx |
| 6/6/2026, 8:44:55 PM | Active | nginx |
| 5/31/2026, 9:30:32 AM | Active | nginx |
| 5/7/2026, 6:16:48 PM | Active | nginx |
| 5/5/2026, 12:13:45 AM | Active | nginx |
| 4/17/2026, 6:15:26 AM | Active | nginx |
| 4/14/2026, 6:17:08 AM | Active | nginx |
| 4/8/2026, 2:54:09 AM | Active | nginx |
| 3/27/2026, 4:49:25 PM | Active | nginx |
| 3/15/2026, 5:54:47 PM | Inactive | Unknown |
| 2/23/2026, 8:08:20 PM | Active | nginx |
| 2/22/2026, 2:32:11 PM | Inactive | Unknown |
| 2/20/2026, 7:27:36 AM | Inactive | Unknown |
| 1/29/2026, 12:23:11 AM | Active | nginx |
| 1/26/2026, 3:41:08 AM | Active | nginx |
| 1/22/2026, 8:11:52 AM | Inactive | Unknown |
| 1/21/2026, 5:47:15 AM | Inactive | Unknown |
| 1/19/2026, 11:24:04 AM | Inactive | Unknown |
| 1/14/2026, 9:17:36 AM | Inactive | Unknown |
| 1/12/2026, 2:25:32 AM | Inactive | Unknown |
| 1/10/2026, 1:21:19 AM | Inactive | Unknown |
| 1/5/2026, 4:02:21 AM | Inactive | Unknown |
| 12/25/2025, 9:45:00 PM | Inactive | Unknown |
| 12/18/2025, 2:18:49 PM | Inactive | Unknown |
| 12/15/2025, 2:06:33 PM | Inactive | Unknown |
| 12/11/2025, 10:52:41 AM | Inactive | Unknown |
| 12/9/2025, 1:08:08 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.
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.