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characters

Referer请求头中包含以前的 web 页面,从中当前请求页面的链接,随后的地址。例如,Referer头允许服务器识别人们访问他们的位置,并且可以使用该数据进行分析,记录或优化缓存。

请注意,引用者实际上是“引用者”一词的拼写错误。有关更多详细信息,请参阅 Wikipedia上的HTTP referer 。

Referer头有透露有关用户,这是一个隐私问题的浏览历史信息的潜力。

在以下情况下Referer,浏览器不会发送标题:

  • the referring resource is a local "file" or "data" URI,

  • 使用不安全的 HTTP 请求,并使用安全协议(HTTPS)接收引用页面。

Header type

Request header

Forbidden header name

yes

句法

Referer: <url>

指令

<url>之前网页的绝对地址或部分地址,从该地址到当前请求的页面的链接被遵循。不包含 URL 碎片(即“#部分”)和用户信息(即 “ https:// username:password@example.com/foo/bar/ ” 中的 “ 用户名:密码 ”)。

例子

Referer: https://developer.mozilla.org/en-US/docs/Web/JavaScript

产品规格

Specification

Title

RFC 7231, section 5.5.2: Referer

Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content

浏览器兼容性

Feature

Chrome

Edge

Firefox

Internet Explorer

Opera

Safari

Basic Support

(Yes)

(Yes)

(Yes)

(Yes)

(Yes)

(Yes)

Feature

Android

Chrome for Android

Edge mobile

Firefox for Android

IE mobile

Opera Android

iOS Safari

Basic Support

(Yes)

(Yes)

(Yes)

(Yes)

(Yes)

(Yes)

(Yes)

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