Is your website down or just down for you? Use a website down checker to verify real outages, rule out local DNS/cache issues, and fix common downtime causes in minutes.
Find out if your website is really down or only down for you. Step-by-step external checks: DNS, ping, multi-region, third-party tools, and what to do next.
How much downtime does each uptime percentage actually allow? Full tables from 99% to 99.999% in seconds, minutes, hours and days per day, month and year.
Use this downtime cost calculator framework to estimate lost revenue, support load, churn risk, and the real business impact of every minute offline.
Get text messages the moment your website goes down. Learn how to set up SMS downtime alerts, reduce false positives, and wake the right person fast.
Get instant Microsoft Teams notifications when your website goes down. Set up downtime alerts in your Teams channel in minutes using webhooks.
Get instant Discord notifications when your website goes down. Step-by-step setup with webhooks — alerts in your server within minutes.
Get Slack notifications the moment your website or API goes down. Step-by-step guide to downtime alerts in Slack.
Calculate the true cost of website downtime for your business. Use our formula to understand why uptime monitoring pays for itself.
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