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  2. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection. [2]A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD.

  3. HTTP 301 - Wikipedia

    en.wikipedia.org/wiki/HTTP_301

    Absolute URL Usage: While relative URLs might be accepted by some browsers, using absolute URLs in the Location header is the standard and ensures consistent behavior across all user agents. Impact on SEO

  4. HTTP 404 - Wikipedia

    en.wikipedia.org/wiki/HTTP_404

    In the first case, it is better to employ URL mapping or URL redirection by returning a 301 Moved Permanently response, which can be configured in most server configuration files, or through URL rewriting; in the second case, a 410 Gone should be returned. Because these two options require special server configuration, most websites do not make ...

  5. List of HTTP header fields - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_header_fields

    Allows easier parsing of the MakeModel/Firmware that is usually found in the User-Agent String of AT&T Devices: X-Att-Deviceid: GT-P7320/P7320XXLPG: X-Wap-Profile [34] Links to an XML file on the Internet with a full description and details about the device currently connecting. In the example to the right is an XML file for an AT&T Samsung ...

  6. HTTP 403 - Wikipedia

    en.wikipedia.org/wiki/HTTP_403

    The Apache web server returns 403 Forbidden in response to requests for URL [3] paths that corresponded to file system directories when directory listings have been disabled in the server and there is no Directory Index directive to specify an existing file to be returned to the browser.

  7. Help:CS1 errors - Wikipedia

    en.wikipedia.org/wiki/Help:CS1_errors

    External links in a rendered citation are a combination of url-holding parameters, |url=, |chapter-url=, etc., with title-holding parameters, |title=, |chapter=, etc. Title-holding parameters may be wikilinked to another Wikipedia article but not when there is a matching url-holding parameter in the citation. When this condition occurs, the ...

  8. Query string - Wikipedia

    en.wikipedia.org/wiki/Query_string

    A query string is a part of a uniform resource locator (URL) that assigns values to specified parameters. A query string commonly includes fields added to a base URL by a Web browser or other client application, for example as part of an HTML document, choosing the appearance of a page, or jumping to positions in multimedia content.

  9. Beautiful Soup (HTML parser) - Wikipedia

    en.wikipedia.org/wiki/Beautiful_Soup_(HTML_parser)

    Beautiful Soup is a Python package for parsing HTML and XML documents, including those with malformed markup. It creates a parse tree for documents that can be used to extract data from HTML, [3] which is useful for web scraping. [2] [4]