Website Uptime Monitor
Monitor website availability and server information for any domain
posteo.net
Uptime & Server Information
Current Status
Historical Data
| Date | Status | Server |
|---|---|---|
| 7/28/2026, 2:14:21 PM | Active | Apache |
| 7/25/2026, 3:26:41 AM | Active | Apache |
| 7/25/2026, 3:26:41 AM | Active | Apache |
| 7/13/2026, 3:14:36 PM | Active | Apache |
| 6/28/2026, 5:33:15 PM | Active | Apache |
| 6/28/2026, 5:33:14 PM | Active | Apache |
| 6/12/2026, 12:51:58 AM | Active | Apache |
| 6/10/2026, 8:56:42 AM | Active | Apache |
| 5/21/2026, 8:34:22 PM | Active | Apache |
| 5/18/2026, 1:46:17 PM | Active | Apache |
| 5/16/2026, 10:39:44 AM | Inactive | Unknown |
| 5/3/2026, 9:42:18 PM | Active | Apache |
| 4/7/2026, 9:49:41 AM | Active | Apache |
| 3/9/2026, 1:17:12 PM | Inactive | Unknown |
| 2/18/2026, 11:25:59 PM | Inactive | Unknown |
| 1/27/2026, 4:19:20 AM | Inactive | Unknown |
| 1/15/2026, 6:55:26 AM | Inactive | Unknown |
| 1/11/2026, 5:42:37 PM | Inactive | Unknown |
| 12/17/2025, 11:44:15 PM | Inactive | Unknown |
| 12/12/2025, 3:11:40 AM | Active | Apache |
| 12/5/2025, 11:52:37 AM | Active | Apache |
| 11/22/2025, 9:56:27 AM | Inactive | Unknown |
| 11/1/2025, 11:04:27 PM | Active | Apache |
| 10/24/2025, 7:07:34 PM | Active | Apache |
| 10/24/2025, 7:07:33 PM | Inactive | Unknown |
| 10/24/2025, 7:07:33 PM | Active | Apache |
| 9/5/2025, 2:34:08 PM | Active | Apache |
| 8/14/2025, 11:04:18 AM | Active | Apache |
| 7/21/2025, 9:35:19 AM | Active | Apache |
| 7/21/2025, 9:35:17 AM | Active | Apache |
| 7/21/2025, 9:35:17 AM | Active | Apache |
| 6/18/2025, 1:41:16 PM | Active | Apache |
| 5/28/2025, 4:58:16 PM | Active | Apache |
| 5/23/2025, 3:54:14 PM | Active | Apache |
| 5/18/2025, 4:20:07 PM | Inactive | Unknown |
| 5/15/2025, 2:49:22 AM | Active | Apache |
| 5/4/2025, 1:41:11 PM | Active | Apache |
| 5/3/2025, 12:50:18 AM | Active | Apache |
| 4/26/2025, 4:42:39 AM | Active | Unknown |
| 4/4/2025, 6:04:42 PM | Active | Unknown |
| 4/2/2025, 4:42:39 AM | Active | Unknown |
| 3/18/2025, 3:27:47 PM | Active | Unknown |
| 1/26/2025, 7:13:57 AM | Active | 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.