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  2. HTTP location - Wikipedia

    en.wikipedia.org/wiki/HTTP_location

    The HTTP Location header field is returned in responses from an HTTP server under two circumstances: To ask a web browser to load a different web page (URL redirection). In this circumstance, the Location header should be sent with an HTTP status code of 3xx. It is passed as part of the response by a web server when the requested URI has:

  3. HTTP 301 - Wikipedia

    en.wikipedia.org/wiki/HTTP_301

    The new URL should be provided in the Location field, included with the response. The 301 redirect is considered a best practice for upgrading users from HTTP to HTTPS. RFC 2616 [1] states that: If a client has link-editing capabilities, it should update all references to the Request URL. The response is cacheable unless indicated otherwise.

  4. Meta refresh - Wikipedia

    en.wikipedia.org/wiki/Meta_refresh

    Meta refresh is a method of instructing a web browser to automatically refresh the current web page or frame after a given time interval, using an HTML meta element with the http-equiv parameter set to "refresh" and a content parameter giving the time interval in seconds.

  5. URL redirection - Wikipedia

    en.wikipedia.org/wiki/URL_redirection

    URL redirection, also called URL forwarding, is a World Wide Web technique for making a web page available under more than one URL address. When a web browser attempts to open a URL that has been redirected, a page with a different URL is opened.

  6. HTTP referer - Wikipedia

    en.wikipedia.org/wiki/HTTP_referer

    In the most common situation, this means that when a user clicks a hyperlink in a web browser, causing the browser to send a request to the server holding the destination web page, the request may include the Referer field, which indicates the last page the user was on (the one where they clicked the link).

  7. Canonical link element - Wikipedia

    en.wikipedia.org/wiki/Canonical_link_element

    A canonical link element is an HTML element that helps webmasters prevent duplicate content issues in search engine optimization by specifying the "canonical" or "preferred" version of a web page. It is described in RFC 6596, which went live in April 2012.

  8. Link prefetching - Wikipedia

    en.wikipedia.org/wiki/Link_prefetching

    An issue inherent to indiscriminate link prefetching involves the misuse of "safe" HTTP methods.The HTTP GET and HEAD requests are said to be "safe", i.e., a user agent that issues one of these requests should expect that the request results in no change on the recipient server. [13]

  9. Link relation - Wikipedia

    en.wikipedia.org/wiki/Link_relation

    A link relation is a descriptive attribute attached to a hyperlink in order to define the type of the link, or the relationship between the source and destination resources. The attribute can be used by automated systems, or can be presented to a user in a different way. In HTML these are designated with the rel attribute on link, a, or area ...