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
码士集团官网 - IT职业领路人
Meta Description
马士兵老师的官方网站,由马士兵老师携手BATJ名师为大家提供java架构师培训,人工智能培训,大数据培训,软件测试培训,Web前端培训,区块链培训等课程,课程均由一线互联网公司技术大牛精心研发,全程项目驱动知识的学习,让您站在巨人的肩膀上快速成长。码士集团:成就更好的自己。
Meta Keywords
马士兵,马士兵教育,java架构师培训,架构师培训,架构师培训课程,架构师培训课程,架构师培训班,人工智能培训,人工智能培训课程,人工智能培训机构,人工智能培训班,大数据培训,软件测试培训,区块链培训,架构师培训机构,大数据培训机构,软件测试培训机构,区块链培训机构,Web前端培训,Web前端培训课程,Web前端培训机构,Web前端培训班,p6,p7,p8架构师
Last Checked
just now
Last Status Change
No change observed
Last Downtime
Never observed down

Observed Changes

DateStatusServer
11/5/2026, 12:24:57 PMActivenginx

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.