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
nginx
Page Title
人类基准测试 | 反应时间与序列记忆在线测试 - ceshi.ink
Meta Description
免费在线人类基准测试:测量反应时间(毫秒)、玩序列记忆九宫格;支持按日查看成绩与历史记录。红屏等待绿屏即点,数据保存在本机浏览器。
Meta Keywords
人类基准测试,反应时间测试,反应速度测试,序列记忆,短时记忆测试,在线反应测试,手眼协调,脑力测试,ceshi.ink
Last Checked
just now
Last Status Change
Came back up — 42 days ago (9/24/2026)
Last Downtime
First seen down 2 months ago (9/6/2026), back up 42 days ago

Observed Changes

DateStatusServer
9/24/2026, 12:29:46 AMActivenginx
9/6/2026, 2:12:03 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 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.