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Multiple Redirects: Using multiple 301 redirects in succession (A to B, then B to C) can lead to increased page load times and may dilute SEO value. Mixed Content Issues : When redirecting from HTTP to HTTPS, ensure that all resources (images, scripts, stylesheets) on the page are also loaded over HTTPS to prevent mixed content warnings.
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.
308 Permanent Redirect This and all future requests should be directed to the given URI. 308 parallels the behavior of 301, but does not allow the HTTP method to change. So, for example, submitting a form to a permanently redirected resource may continue smoothly.
Permanent RFC 7239: From: The email address of the user making the request. From: user@example.com: Permanent RFC 9110: Host: The domain name of the server (for virtual hosting), and the TCP port number on which the server is listening. The port number may be omitted if the port is the standard port for the service requested. Mandatory since ...
Some operators prefer to use PURLs of type 301 (indicating that the final URI should be addressed in future requests). A PURL of type "chain" allows a PURL to redirect to another PURL in a manner identical to a 301 or 302 redirection, with the difference that a PURL server will handle the redirection internally for greater efficiency.
Apache HTTP Server Documentation – FileETag Directive; Editing the Web: Detecting the Lost Update Problem Using Unreserved Checkout, W3C Note, 10 May 1999. Live demo of zombie cookie using ETags; Old SQUID Development projects – ETag support Archived 23 September 2012 at the Wayback Machine (completed in 2001)
Controlling Apache using the main server configuration file httpd.conf [9] is often preferred for security and performance reasons: [10] Performance loss For each HTTP request , there are additional file-system accesses for parent directories when using .htaccess , to check for possibly existing .htaccess files in those parent directories which ...
The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...