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/HTTP

Link

The HTTP Link entity-header field provides a means for serialising one or more links in HTTP headers. It is semantically equivalent to the HTML <link> element.

Syntax

Link: < uri-reference >; param1=value1; param2="value2"
<uri-reference>
The URI reference, must be enclosed between < and >.

Parameters

The link header contains parameters, which are separated with ; and are equivalent to attributes of the <link> element.

Examples

The URI (absolute or relative) must be enclosed between < and >:

Link: <https://example.com>; rel="preconnect"
Link: https://bad.example; rel="preconnect"

You can specify multiple links separated by commas, for example:

Link: <https://one.example.com>; rel="preconnect", <https://two.example.com>; rel="preconnect", <https://three.example.com>; rel="preconnect"

Specifications

Specification Status Comments
RFC 8288, section 3: Link Serialisation in HTTP Headers IETF RFC
RFC 5988, section 5: The Link Header Field IETF RFC Initial definition

Browser compatibility

No compatibility data found. Please contribute data for "http.headers.Link" (depth: 1) to the MDN compatibility data repository.

See also

© 2005–2020 Mozilla and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Link