Free Uptime and Website Tools
Free, no-signup tools for uptime, SLAs, and the cost of downtime.
Website CheckerNew
Check whether any site is up from 5 global regions at once, with per-region response times and SSL expiry. No signup.
Open Website Checker →Uptime SLA Calculator
Convert 99%, 99.9%, 99.99% or any custom SLA into the real downtime budget per day, week, month, and year.
Open Uptime SLA Calculator →Downtime Cost Calculator
Turn an outage into a dollar impact based on your revenue and traffic.
Open Downtime Cost Calculator →SLA Credit Calculator
What you are owed when a vendor misses an SLA.
Open SLA Credit Calculator →