Website Uptime Monitor

Monitor website availability and server information for any domain

Current Status

Status
Active
Server Type
nginx/1.18.0 (Ubuntu)
Page Title
实用 AI(Useful AI)2026:一线工程师的判断、AI 入门与工具实测 | Useful AI
Meta Description
实用 AI(Useful AI):一线 AI 工程师的判断日志——不做百科做评论。AI 零基础入门、主流工具实测(ChatGPT / Claude / Gemini / DeepSeek / Kimi)、大厂免费课程、提示词写法、AI 术语表与 GPU 算力行情,全部由亲手验证的结论构成。
Meta Keywords
实用AI,useful ai,Useful AI,实用人工智能,AI入门,AI工具推荐,免费AI课程,提示词,prompt engineering,ChatGPT,Claude,DeepSeek,Kimi,AI术语表,前向部署工程师,FDE,显卡期货,GPU算力,认知差,AI评论
Most Recent Data
0 hours, 0 minutes ago

Historical Data

DateStatusServer
8/5/2026, 11:19:48 AMActivenginx/1.18.0 (Ubuntu)

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.

Metrics we monitor

  • Uptime percentage: The percentage of time your website is accessible
  • Response time: How quickly your server responds to requests
  • Status codes: HTTP response codes indicating server status

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.