What is Uptime?
The short answer
Uptime is the share of time a website is online and working; monitoring services check it continuously and alert when it goes down.
What people say: “my website is down”.
Uptime, explained
Static sites on a CDN rarely go down; the usual causes of outages are expired domains, DNS mistakes and failing back-end services.
Questions people ask about Uptime
What is Uptime?
Uptime is the share of time a website is online and working; monitoring services check it continuously and alert when it goes down.
Related terms
Web hosting is the service that stores a website's files on internet-connected servers and delivers them to visitors around the clock.
CDNA CDN is a network of servers around the world that keeps copies of a site's files and serves each visitor from the location nearest to them.
DeployTo deploy is to publish a new version of a website to its host so visitors see it; modern hosts deploy automatically when code is pushed to Git.
CI/CDCI/CD is automation that checks and ships code: continuous integration runs builds and tests on every change, and continuous deployment releases what passes.
Part of the Web Encyclopedia by Apex Flow Digital. Definitions are general knowledge, kept current, with no invented statistics.