Website Uptime Monitor
Monitor website availability and server information for any domain
424200.cn
Uptime & Server Information
Current Status
Historical Data
| Date | Status | Server |
|---|---|---|
| 7/23/2026, 1:07:24 AM | Active | nginx |
| 7/7/2026, 7:30:30 PM | Active | nginx |
| 6/24/2026, 7:23:45 AM | Active | nginx |
| 6/7/2026, 4:34:55 AM | Active | nginx |
| 6/1/2026, 6:50:06 AM | Active | nginx |
| 5/28/2026, 1:34:18 AM | Active | nginx |
| 5/22/2026, 6:42:34 AM | Active | nginx |
| 5/17/2026, 4:52:36 AM | Active | nginx |
| 5/11/2026, 10:10:34 PM | Active | nginx |
| 5/10/2026, 8:15:18 PM | Active | nginx |
| 5/2/2026, 11:36:03 PM | Active | nginx |
| 4/18/2026, 9:32:36 AM | Active | nginx |
| 3/18/2026, 12:00:26 AM | Active | nginx |
| 3/12/2026, 8:37:55 AM | Inactive | Unknown |
| 2/27/2026, 11:10:56 PM | Inactive | Unknown |
| 2/21/2026, 9:28:52 AM | Inactive | Unknown |
| 2/7/2026, 4:52:27 PM | Inactive | Unknown |
| 2/5/2026, 1:49:05 AM | Inactive | Unknown |
| 1/11/2026, 6:36:02 PM | Inactive | Unknown |
| 12/25/2025, 4:58:01 PM | Inactive | Unknown |
| 12/21/2025, 6:11:53 AM | Inactive | Unknown |
| 12/19/2025, 9:24:50 PM | Inactive | Unknown |
| 9/23/2025, 10:50:42 AM | Inactive | Unknown |
| 9/18/2025, 2:22:58 AM | Active | nginx |
| 9/10/2025, 3:22:40 PM | Active | nginx |
| 8/10/2025, 11:19:14 PM | Inactive | Unknown |
| 6/30/2025, 6:51:13 AM | Active | nginx |
| 5/3/2025, 9:08:15 PM | Active | nginx |
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.