Website Uptime Monitor
Monitor website availability and server information for any domain
slack.com
Uptime & Server Information
Current Status
Observed Changes
| Date | Status | Server |
|---|---|---|
| 9/9/2026, 4:43:09 PM | Active | Apache |
| 7/30/2026, 10:47:53 AM | Active | Apache |
| 7/3/2026, 11:26:14 AM | Active | Apache |
| 6/25/2026, 3:39:44 PM | Active | Apache |
| 6/17/2026, 3:54:34 PM | Active | Apache |
| 6/5/2026, 5:28:36 AM | Active | Apache |
| 6/1/2026, 4:01:54 AM | Active | Apache |
| 5/19/2026, 12:47:02 PM | Active | Apache |
| 5/16/2026, 12:36:38 AM | Active | Apache |
| 5/9/2026, 3:20:22 PM | Active | Apache |
| 5/6/2026, 9:00:55 AM | Active | Apache |
| 5/2/2026, 11:01:53 PM | Active | Apache |
| 4/18/2026, 6:38:21 AM | Active | Apache |
| 4/10/2026, 4:44:32 PM | Active | Apache |
| 4/8/2026, 7:00:52 PM | Active | Apache |
| 4/4/2026, 6:11:56 AM | Inactive | Unknown |
| 4/1/2026, 7:33:40 PM | Active | Apache |
| 3/17/2026, 3:41:56 AM | Inactive | Unknown |
| 3/13/2026, 11:57:00 AM | Active | Apache |
| 3/8/2026, 4:41:56 PM | Active | Apache |
| 3/2/2026, 5:07:21 PM | Active | Apache |
| 3/1/2026, 10:35:06 AM | Active | Apache |
| 2/26/2026, 4:42:33 PM | Active | Apache |
| 2/21/2026, 5:54:47 PM | Active | Apache |
| 2/14/2026, 8:21:42 PM | Inactive | Unknown |
| 2/12/2026, 6:20:59 PM | Inactive | Unknown |
| 2/11/2026, 9:42:23 AM | Active | Apache |
| 2/5/2026, 2:18:08 AM | Active | Apache |
| 2/2/2026, 9:44:54 PM | Inactive | Unknown |
| 1/30/2026, 10:28:47 PM | Inactive | Unknown |
| 1/29/2026, 9:44:16 PM | Inactive | Unknown |
| 1/26/2026, 11:12:20 PM | Active | Apache |
| 1/24/2026, 7:29:01 PM | Inactive | Unknown |
| 1/23/2026, 1:15:13 PM | Inactive | Unknown |
| 1/22/2026, 8:02:12 AM | Inactive | Unknown |
| 1/21/2026, 1:45:24 AM | Inactive | Unknown |
| 1/20/2026, 12:39:53 AM | Active | Apache |
| 1/18/2026, 5:41:10 PM | Inactive | Unknown |
| 1/17/2026, 5:31:03 PM | Inactive | Unknown |
| 1/16/2026, 10:38:30 AM | Inactive | Unknown |
| 1/13/2026, 10:49:39 PM | Inactive | Unknown |
| 1/10/2026, 11:10:50 AM | Inactive | Unknown |
| 1/8/2026, 8:40:47 PM | Inactive | Unknown |
| 1/6/2026, 8:17:44 PM | Inactive | Unknown |
| 1/5/2026, 6:57:43 PM | Inactive | Unknown |
| 1/4/2026, 12:28:21 PM | Inactive | Unknown |
| 12/24/2025, 3:20:12 PM | Inactive | Unknown |
| 12/23/2025, 2:56:37 PM | Inactive | Unknown |
| 12/22/2025, 7:51:00 AM | Inactive | Unknown |
| 12/20/2025, 11:03:03 PM | Active | Apache |
| 12/19/2025, 10:13:44 PM | Inactive | Unknown |
| 12/18/2025, 2:43:34 PM | Inactive | Unknown |
| 12/16/2025, 11:59:06 PM | Active | Apache |
| 12/15/2025, 1:59:35 PM | Inactive | Unknown |
| 12/13/2025, 1:59:45 AM | Active | Apache |
| 12/11/2025, 8:12:00 PM | Active | Apache |
| 12/10/2025, 1:05:11 PM | Active | Apache |
| 12/9/2025, 1:11:25 AM | Active | Apache |
| 12/6/2025, 12:48:23 PM | Active | Apache |
| 11/30/2025, 11:57:45 PM | Active | Apache |
| 11/29/2025, 11:08:15 AM | Inactive | Unknown |
| 11/27/2025, 8:20:31 PM | Active | Apache |
| 11/24/2025, 7:45:30 AM | Active | Apache |
| 11/21/2025, 7:48:31 PM | Active | Apache |
| 11/18/2025, 6:12:19 AM | Active | Apache |
| 11/16/2025, 4:44:22 PM | Active | Apache |
| 11/15/2025, 10:48:40 AM | Active | Apache |
| 11/14/2025, 3:14:41 AM | Active | Apache |
| 11/10/2025, 2:56:29 PM | Active | Apache |
| 11/8/2025, 8:05:07 PM | Inactive | Unknown |
| 11/7/2025, 8:10:07 AM | Active | Apache |
| 11/3/2025, 7:33:25 PM | Active | Apache |
| 10/31/2025, 5:01:39 AM | Inactive | Unknown |
| 10/26/2025, 12:50:09 PM | Active | Apache |
| 10/25/2025, 6:41:15 AM | Active | Apache |
| 10/24/2025, 4:16:02 AM | Active | Apache |
| 10/22/2025, 10:30:19 AM | Active | Apache |
| 10/18/2025, 3:00:38 PM | Active | Apache |
| 9/23/2025, 2:45:20 PM | Active | Apache |
| 9/12/2025, 8:54:28 PM | Active | Apache |
| 9/8/2025, 7:02:06 PM | Inactive | Unknown |
| 8/26/2025, 10:05:28 AM | Active | Apache |
| 8/18/2025, 3:18:33 PM | Active | Apache |
| 8/12/2025, 6:35:45 PM | Inactive | Unknown |
| 8/11/2025, 4:15:58 AM | Inactive | Unknown |
| 7/11/2025, 8:35:41 PM | Inactive | Unknown |
| 6/26/2025, 2:43:22 PM | Active | Apache |
| 6/20/2025, 7:09:36 PM | Active | Apache |
| 5/26/2025, 7:14:56 AM | Active | Apache |
| 5/15/2025, 1:26:04 PM | Active | Apache |
| 5/14/2025, 9:05:27 AM | Active | Apache |
| 5/10/2025, 8:17:49 PM | Active | Apache |
| 5/8/2025, 7:50:19 AM | Active | Apache |
| 5/3/2025, 12:53:15 AM | Active | Apache |
| 4/28/2025, 8:12:46 PM | Active | Unknown |
| 4/24/2025, 1:27:15 PM | Active | Unknown |
| 4/22/2025, 7:36:39 PM | Active | Unknown |
| 4/21/2025, 10:53:00 AM | Active | Unknown |
| 4/17/2025, 10:04:56 AM | Active | Unknown |
| 4/15/2025, 5:28:09 PM | 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.
What this page reports
- Last status change: When we last saw a site switch between reachable and unreachable
- Last downtime: When a site was most recently seen down, and whether it has come back
- Server and meta information: The server software, page title and meta tags we last observed
We check a domain at most once a day and record an observation only when something changes, so these are the times a change was seen rather than the exact moment it happened. For continuous, minute-by-minute checks with alerting, use website monitoring.
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.