Website Uptime Monitor

Monitor website availability and server information for any domain

Current Status

Status
Active
Server Type
Apache
Page Title
江戸川区を拠点に電気工事等を承る株式会社S-DENは共に働く社員を求人
Meta Description
江戸川区に本社を置く電気工事等のインフラ施工を生業としている株式会社S-DENでは、一緒に働いてくださる社員を求人しています。電気は住宅やオフィス、工場に至るまで必須のインフラです。電気を安心して使用できるように、配線等の施工をチームワークで行います。
Meta Keywords
江戸川区,電気工事
Most Recent Data
0 hours, 0 minutes ago

Historical Data

DateStatusServer
8/13/2026, 2:32:26 AMActiveApache
7/28/2026, 4:30:02 PMActiveApache
7/12/2026, 5:15:45 PMInactiveUnknown
1/18/2026, 8:30:42 PMInactiveUnknown
1/12/2026, 8:03:25 PMInactiveUnknown
12/28/2025, 3:56:27 AMInactiveUnknown
12/22/2025, 5:23:18 PMInactiveUnknown
12/18/2025, 5:41:57 AMInactiveUnknown
8/28/2025, 6:01:31 AMInactiveUnknown
6/16/2025, 5:53:33 PMInactiveUnknown
6/2/2025, 10:59:54 PMInactiveUnknown

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.