Website Uptime Monitor

Monitor website availability and server information for any domain

Current Status

Status
Active
Server Type
nginx/1.14.0
Page Title
CTF在线工具-CTF工具|CTF编码|CTF密码学|CTF加解密|程序员工具|在线编解码
Meta Description
CTFcode为CTF比赛人员、程序员提供20多种常用编码,如base家族编码、莫尔斯电码,20多种古典密码学,如仿射密码、栅栏密码、培根密码等,以及10多种杂项工具,如XXencode、UUencode等。
Meta Keywords
CTF在线工具、CTF工具、CTF工具箱、CTF工具包、CTF编码、CTF加解密、CTF密码学、CTF算法、base64编码、base64在线解码、URL编码、HTML编码、utf-7、ADFGX密码、凯撒密码、rot13在线
Most Recent Data
0 hours, 0 minutes ago

Historical Data

DateStatusServer
7/26/2026, 3:20:12 PMActivenginx/1.14.0

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.