Refresh
The HTTP Refresh
response header directs a web browser to either refresh or redirect the page when a specified amount of time has passed after the page was fully loaded.
It is exactly equivalent to using <meta http-equiv="refresh" content="...">
in HTML.
Note:
Even though it's present in the HTTP response, the Refresh
header is still handled by the HTML loading machinery and happens after HTTP or JavaScript redirects. See redirection order of precedence for more information.
Header type | Response header |
---|---|
Forbidden header name | No |
Syntax
Refresh: <time>
Refresh: <time>, url=<url>
Refresh: <time>; url=<url>
<time>
-
A non-negative number of seconds after which to refresh the page. Fractional parts are recognized but ignored; you should only specify integers.
<url>
Optional-
If present, the browser will redirect to the specified URL instead of refreshing with the current URL. This URL can be quoted or unquoted. The
url=
prefix is case-insensitive and optional.
Examples
Refreshing a page after a specific time
This header will cause the browser to refresh the page 5 seconds after it is fully loaded (that is, after the load
event):
Refresh: 5
Redirecting after a specific time
This header will cause the browser to redirect to the a URL 5 seconds after the page is fully loaded:
Refresh: 5; url=https://example.com/
Note:
See the http-equiv="refresh"
attribute in the HTML reference for important information about accessibility implications of automatic redirects.
Specifications
Specification |
---|
HTML Standard # the-refresh-header |
Browser compatibility
BCD tables only load in the browser
See also
<meta>
- Redirections in HTTP
- The Refresh header is still with us HTTP Working Group message (2019)