Website Uptime Monitor
Monitor website availability and server information for any domain
testbook.com
Uptime & Server Information
Current Status
Historical Data
| Date | Status | Server |
|---|---|---|
| 9/5/2026, 2:21:43 PM | Active | cloudflare |
| 8/21/2026, 9:58:44 AM | Active | cloudflare |
| 7/6/2026, 4:37:10 PM | Active | cloudflare |
| 7/2/2026, 8:18:27 AM | Active | cloudflare |
| 6/18/2026, 2:38:41 PM | Active | cloudflare |
| 6/6/2026, 8:05:07 AM | Active | cloudflare |
| 5/28/2026, 6:11:19 PM | Active | cloudflare |
| 5/27/2026, 11:16:57 AM | Active | cloudflare |
| 5/22/2026, 3:54:09 PM | Active | cloudflare |
| 5/20/2026, 8:15:22 AM | Active | cloudflare |
| 5/2/2026, 7:29:03 PM | Active | cloudflare |
| 4/19/2026, 5:09:09 PM | Active | cloudflare |
| 4/16/2026, 6:26:34 AM | Active | cloudflare |
| 3/16/2026, 7:44:29 PM | Inactive | Unknown |
| 6/25/2025, 10:29:38 AM | Active | cloudflare |
| 5/29/2025, 9:45:54 PM | Active | cloudflare |
| 5/27/2025, 5:49:56 AM | Active | cloudflare |
| 4/28/2025, 3:46:14 PM | Active | cloudflare |
| 3/13/2025, 6:12:15 PM | Inactive | Unknown |
| 3/5/2025, 8:01:03 AM | Active | cloudflare |
| 3/2/2025, 3:55:37 AM | Inactive | Unknown |
| 2/28/2025, 4:08:45 PM | Active | cloudflare |
| 2/16/2025, 3:15:05 AM | Active | cloudflare |
| 1/31/2025, 3:50:38 AM | Inactive | Unknown |
| 1/9/2025, 4:18:37 PM | Active | cloudflare |
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.