Website Down Checker

See whether a site was up at our last check and when it last went down.

Current Status

Status
Active
Server Type
Microsoft-IIS/7.5
Page Title
润桐RainPat专利检索---查专利,用润桐
Meta Description
专业的知识产权大数据调查平台,提供专利检索,专利查询,专利搜索,专利引证,专利交易,商标查询,版权查询,知识产权裁判文书等全品类知识产权大数据,为客户提供专利预警,专利分析,专利导航,知识产权评议和专利数据库建设等特色服务,同时还具有专利代理,商标注册,专利转让,专利运营,专利托管,专利质押,专利保险,专利申请,专利复审,专利无效,专利诉讼,专利资产评估,技术转移,商标转让,商标交易,版权代理,版权交易,专利下载,专利信息,技术转让,专利文献,技术交易及知识产权信息服务
Meta Keywords
专利查询,专利检索,专利,知识产权,专利下载,专利搜索,专利信息,专利分析,专利申请,专利托管,专利转让,专利导航,专利交易,专利诉讼,专利预警,专利买卖,专利数据,专利运营,专利质押,专利保险,专利资产,专利文献
Last Checked
just now
Last Status Change
Came back up — 2 months ago (8/22/2026)
Last Downtime
First seen down 2 months ago (8/21/2026), back up 2 months ago

Observed Changes

DateStatusServer
8/22/2026, 12:05:28 PMActiveMicrosoft-IIS/7.5
8/21/2026, 5:14:52 AMInactiveUnknown
8/19/2026, 11:45:46 AMActiveMicrosoft-IIS/7.5
8/18/2026, 9:02:41 AMActiveMicrosoft-IIS/7.5
8/15/2026, 6:19:11 AMActiveMicrosoft-IIS/7.5
8/8/2026, 2:14:46 AMActiveMicrosoft-IIS/7.5
8/4/2026, 11:01:19 AMInactiveUnknown
8/1/2026, 11:33:14 PMActiveMicrosoft-IIS/7.5
7/23/2026, 11:29:26 PMActiveMicrosoft-IIS/7.5
7/18/2026, 5:44:20 PMActiveMicrosoft-IIS/7.5

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 monitor with 7-day uptime percentage, failed checks, average latency by region, and daily outages

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, CNAME, TXT 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

This page shows whether we could reach a website the last time we checked it. We also keep a record of when it went down and came back, so you can see whether an outage is new or has happened before. For each site we show:

  • Website availability and response status
  • Server software and configuration
  • Meta information including titles and descriptions
  • Historical uptime patterns

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.