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
GitHub.com
Page Title
Qiyuan Qiao | HKU
Meta Description
Qiyuan Qiao (乔启元) is a Ph.D. student at HKU researching data-efficient robot learning, world models, 3D perception, and robotic manipulation.
Meta Keywords
qiyuan qiao, qiyuan, 乔启元, 喬啟元, qqy, qiaoqy, 喬启元, qiao, qiaoyuan, qiao qiyuan, qiyuanqiao, 香港大学, 香港大學, HKU, University of Hong Kong, 计算机科学, 電腦科學, Computer Science, 机器人, 機器人, robotics, robotic grasping, 机械工程, 機械工程, mechanical engineering, 计算机视觉, 電腦視覺, computer vision, 世界模型, world models, 具身智能, embodied intelligence, 高效数据收集, efficient data collection, 自适应抓取, 自適應抓取, adaptive grasping, 乔启元主页, 喬啟元主頁, qiyuan qiao homepage, qiyuan qiao website, qiyuan qiao research, qiyuan qiao publications, 乔启元研究, 喬啟元研究, 乔启元论文, 喬啟元論文
Last Checked
just now
Last Status Change
No change observed
Last Downtime
Never observed down

Observed Changes

DateStatusServer
11/2/2026, 9:42:41 AMActiveGitHub.com

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.