Website Uptime Monitor

Monitor website availability and server information for any domain

Current Status

Status
Active
Server Type
nginx
Page Title
アルシオラ株式会社 | 日本で初めてのメールマーケティング専門事業者。アルシオラ株式会社
Meta Description
日本で初めてのメールマーケティング専門事業者。アルシオラ株式会社
Meta Keywords
Not available
Most Recent Data
0 hours, 0 minutes ago

Historical Data

DateStatusServer
9/11/2026, 3:30:34 AMActivenginx
9/3/2026, 5:52:46 PMActivenginx
7/12/2026, 12:32:56 AMActivenginx
7/1/2026, 1:47:36 AMActivenginx
6/16/2026, 11:15:47 AMActivenginx
6/8/2026, 11:55:28 PMInactiveUnknown
4/26/2026, 8:51:49 AMActivenginx
4/23/2026, 8:52:23 AMActivenginx
3/2/2026, 7:52:16 AMInactiveUnknown
1/29/2026, 2:59:49 PMInactiveUnknown
1/28/2026, 3:09:59 AMInactiveUnknown
1/19/2026, 11:50:29 PMInactiveUnknown
12/25/2025, 11:15:17 AMInactiveUnknown
12/23/2025, 5:30:07 AMInactiveUnknown
12/18/2025, 10:03:26 PMInactiveUnknown
12/17/2025, 1:30:49 PMInactiveUnknown
11/22/2025, 9:41:09 PMActivenginx
11/20/2025, 2:24:09 PMActivenginx
11/14/2025, 11:17:25 PMActivenginx
11/12/2025, 9:48:50 AMActivenginx
11/8/2025, 5:09:05 PMActivenginx
11/7/2025, 8:56:01 AMInactiveUnknown
11/5/2025, 8:20:25 PMInactiveUnknown
6/27/2025, 3:29:14 AMActivenginx

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.

Monitor uptime free

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.