Website Uptime Monitor
Monitor website availability and server information for any domain
cobalt.tools
Uptime & Server Information
Current Status
Historical Data
| Date | Status | Server |
|---|---|---|
| 8/25/2026, 8:47:26 PM | Inactive | Unknown |
| 8/2/2026, 10:19:19 AM | Inactive | Unknown |
| 4/12/2026, 10:18:51 AM | Inactive | Unknown |
| 3/8/2026, 6:19:21 PM | Inactive | Unknown |
| 3/2/2026, 10:23:24 AM | Inactive | Unknown |
| 1/9/2026, 3:09:29 PM | Inactive | Unknown |
| 1/9/2026, 3:09:26 PM | Inactive | Unknown |
| 1/9/2026, 3:09:26 PM | Inactive | Unknown |
| 1/1/2026, 7:03:18 PM | Inactive | Unknown |
| 1/1/2026, 7:03:16 PM | Inactive | Unknown |
| 12/7/2025, 6:26:36 PM | Inactive | Unknown |
| 9/23/2025, 12:18:54 AM | Inactive | Unknown |
| 9/20/2025, 2:42:35 PM | Inactive | Unknown |
| 9/14/2025, 7:50:32 PM | Inactive | Unknown |
| 8/17/2025, 9:06:09 AM | Inactive | Unknown |
| 8/14/2025, 2:36:27 PM | Inactive | Unknown |
| 7/2/2025, 1:28:07 PM | Inactive | Unknown |
| 5/31/2025, 8:39:10 PM | Inactive | Unknown |
| 5/23/2025, 2:02:47 PM | Inactive | Unknown |
| 5/3/2025, 12:13:55 AM | Inactive | Unknown |
| 4/25/2025, 4:06:54 PM | Inactive | Unknown |
| 4/22/2025, 7:22:58 AM | Inactive | Unknown |
| 4/18/2025, 2:43:43 PM | Inactive | Unknown |
| 4/17/2025, 1:27:39 PM | Inactive | Unknown |
| 4/12/2025, 1:21:23 PM | Inactive | Unknown |
| 4/9/2025, 8:10:21 PM | Inactive | Unknown |
| 4/8/2025, 7:59:00 PM | Inactive | Unknown |
| 4/7/2025, 3:43:22 PM | Inactive | Unknown |
| 3/28/2025, 12:46:44 PM | Inactive | Unknown |
| 3/26/2025, 7:33:02 PM | Inactive | Unknown |
| 3/25/2025, 6:32:44 PM | Inactive | Unknown |
| 3/24/2025, 5:07:39 PM | Inactive | Unknown |
| 3/21/2025, 12:09:56 PM | Inactive | Unknown |
| 3/20/2025, 7:40:28 AM | Inactive | Unknown |
| 3/16/2025, 9:17:45 PM | Inactive | Unknown |
| 3/15/2025, 6:04:38 PM | Inactive | Unknown |
| 3/11/2025, 1:43:06 PM | Inactive | Unknown |
| 3/4/2025, 9:47:46 PM | Inactive | Unknown |
| 3/3/2025, 2:20:46 PM | Inactive | Unknown |
| 3/2/2025, 1:22:09 PM | Inactive | Unknown |
| 2/26/2025, 2:58:49 PM | Inactive | Unknown |
| 2/22/2025, 10:53:38 PM | Inactive | Unknown |
| 2/21/2025, 4:01:16 AM | Inactive | Unknown |
| 2/19/2025, 7:39:11 PM | Inactive | Unknown |
| 2/17/2025, 1:00:24 PM | Inactive | Unknown |
| 2/10/2025, 7:57:31 PM | Inactive | Unknown |
| 2/9/2025, 5:41:59 AM | Inactive | Unknown |
| 2/2/2025, 6:47:56 PM | Inactive | Unknown |
| 2/1/2025, 2:07:24 PM | Inactive | Unknown |
| 1/28/2025, 2:30:03 PM | Inactive | Unknown |
| 1/27/2025, 12:44:27 AM | Inactive | Unknown |
| 1/21/2025, 2:17:56 PM | Inactive | Unknown |
| 1/12/2025, 9:34:57 PM | Inactive | Unknown |
| 1/11/2025, 5:42:36 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.