What does oos check?
Official announcements, website responses and user reports are shown separately.
Website observations
Public and personal monitors use the same engine for HTTP responses, timing, DNS, connection and certificate expiry. Personal monitors support GET, HEAD and POST, headers, JSON request bodies, status ranges, included or excluded text, JSON values, response limits and certificate lifetime. Body checks read up to 256KB; incomplete bodies cannot pass exclusion or JSON conditions. Consecutive failures determine incidents. Chart gaps are not counted as uptime. A responding URL does not establish that the app, login or payments work.
Updates and retention
Curated services are checked every five minutes; personal monitors use the chosen interval. Free accounts choose 30 or 60 minutes, and Plus starts at one minute. Runs may be delayed, so actual observation times are shown. Official sources are refreshed every five minutes. Website checks and reports are retained for thirty days, and open pages refresh about once a minute.
Official information with a source
We collect current status and recent notices from public status APIs. Titles and timestamps come from the provider, with closed notices marked separately. Other services link to their official website or status page.
Reports and availability
A report describes a user's experience. Device or network problems may also be included. When reports are limited, check official information too.
When we show increasing reports
Comparison starts seven days after the first report, with at least 20 reports across four days in the preceding seven days. Reports are increasing when the last 30 minutes has at least five reports, at least three times the previous seven-day half-hour average, and at least three distinct network identifiers. This is separate from official confirmation of an outage.
Limiting repeat reports
We count one report per service per browser every 30 minutes, up to 12 reports across all services per hour. A network can submit up to 60 reports in ten minutes. People sharing a network may share this limit. Different devices or browsers can be counted separately.