Website Uptime Monitor

Monitor website availability and server information for any domain

Current Status

Status
Active
Server Type
hcdn
Page Title
CalcM8 — Multi Calculator
Meta Description
Multi Calculator — financial, math, physics and real estate calculators. Fast, accessible and mobile-friendly.
Meta Keywords
Not available
Most Recent Data
0 hours, 0 minutes ago

Historical Data

DateStatusServer
7/28/2026, 5:43:56 AMActivehcdn
6/24/2026, 3:44:13 PMActivehcdn
4/10/2026, 11:11:17 PMActivehcdn
2/21/2026, 7:57:20 PMActivehcdn
2/19/2026, 2:45:46 AMInactiveUnknown
1/21/2026, 11:12:36 AMInactiveUnknown
1/18/2026, 7:52:47 PMActivehcdn
1/7/2026, 9:09:10 PMInactiveUnknown
12/17/2025, 3:24:58 AMInactiveUnknown
11/9/2025, 1:52:01 AMActivehcdn
11/4/2025, 5:47:44 PMActivehcdn
11/3/2025, 1:11:41 AMActivehcdn
10/14/2025, 4:36:53 PMActivehcdn
9/20/2025, 12:25:35 AMActivehcdn
7/30/2025, 8:51:59 PMActivehcdn

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.