2xx Success
HTTP 206 Partial Content
The server sends one or more parts of the resource, the byte ranges the client asked for in a Range header, instead of the whole thing. It is how downloads resume and how video and audio players jump to the middle of a file.
Defined in RFC 9110, section 15.3.7(opens in a new tab)
//_01 Uptime checks
Is 206 up or down for a monitor?
Uptimecheck HTTP monitor
Default settings
Up. By default an Uptimecheck HTTP monitor accepts 200–399 as up, so a 206 counts as up. With a keyword check, the page must also contain the word you set.
Is it down? checker
Free, at /is-it-down/
Up: the checker counts any answer below 500 as the site answering.
//_02 Causes and fixes
Why you see 206 and what to do
Typical causes
- Video and audio players seeking, download managers resuming, PDF viewers loading pages.
If you run the site
- If downloads can’t resume or videos can’t seek, check that the server sends Accept-Ranges: bytes and that no proxy or compression step drops range support.
If you’re a visitor
- Nothing to do.
Know the moment your site stops answering as it should
An Uptimecheck monitor requests your page as often as every minute, checks the status code against the ones you expect, confirms a failure with a second check and then alerts you.
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Questions
What does HTTP 206 mean?
The server sends one or more parts of the resource, the byte ranges the client asked for in a Range header, instead of the whole thing. It is how downloads resume and how video and audio players jump to the middle of a file.
Does an uptime monitor count 206 as down?
Up. By default an Uptimecheck HTTP monitor accepts 200–399 as up, so a 206 counts as up. With a keyword check, the page must also contain the word you set.
Downtime is obsolete.
Set up your first monitor in under a minute, or look around the live demo first.
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