Website Uptime Monitor

Monitor website availability and server information for any domain

Current Status

Status
Active
Server Type
nginx/1.14.1
Page Title
iTbook.team 技术速查手册
Meta Description
最全的网站IT技术基础教程,介绍了PHP、MySQL、Linux、web服务器、redis、memcache、javascript、HTML5、css、seo等各种编程语言配置、使用、技巧、安全等知识。
Meta Keywords
IT技术速查手册,PHP,MySQL,Linux,web服务器,javascript,HTML5,css,seo,redis,memcache
Most Recent Data
0 hours, 0 minutes ago

Historical Data

DateStatusServer
8/14/2026, 6:09:00 PMActivenginx/1.14.1
8/6/2026, 8:44:25 PMActivenginx/1.14.1
8/4/2026, 4:53:22 AMActivenginx/1.14.1
8/2/2026, 6:55:50 AMActivenginx/1.14.1
7/21/2026, 11:08:36 AMActivenginx/1.14.1
6/26/2026, 8:19:18 AMActivenginx/1.14.1
6/12/2026, 7:41:19 AMInactiveUnknown
6/3/2026, 7:24:25 AMActivenginx/1.14.1
5/22/2026, 8:15:41 PMActivenginx/1.14.1
5/2/2026, 5:38:16 PMActivenginx/1.14.1
2/6/2026, 5:32:56 PMInactiveUnknown
1/13/2026, 9:21:48 PMActivenginx/1.14.1
12/9/2025, 9:59:55 AMInactiveUnknown

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.