Website Uptime Monitor

Monitor website availability and server information for any domain

Current Status

Status
Active
Server Type
cloudflare
Page Title
AI検索に引用されるWEB制作|llms.txt・構造化データ標準実装 29.8万円〜 | OTASUKE WEB
Meta Description
ChatGPTやGeminiに引用されるサイトを設計段階からつくるWEB制作・ホームページ制作。llms.txt・llms-full.txtの設置、AIクローラー15種の明示許可、構造化データ実装を標準仕様に。SEO対策込みで29.8万円から、月額費用なし。
Meta Keywords
WEB制作,ホームページ制作,SEO対策,AIO対策,LLMO対策,WEB制作会社,ホームページ制作会社,AI検索最適化,GEO対策,WEBサイト制作,LP制作,コーポレートサイト制作,WEB集客,SEO対策 会社,ChatGPT検索対策,構造化データ,WEBデザイン,サイトリニューアル,コンテンツSEO,MEO対策
Last Checked
just now
Last Status Change
Came back up — just now (10/13/2026)
Last Downtime
First seen down 14 months ago (7/27/2025), back up just now

Observed Changes

DateStatusServer
10/13/2026, 5:47:25 PMActivecloudflare
7/27/2025, 7:03:30 AMInactiveUnknown

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.

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.