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How to 301 Redirect for SEO purposes, maximizing link juice to every pageDawn Rossi, 09-19-2008 |
To maximize your website pages link juice, there are a few simple rules you have to follow:
#1. Avoid session variables in your urls
This is bad: http://www.mydomain.com/?PHPSESSID=1234567
#2. Avoid duplicate content
If you're using clean urls, category pages (WordPress, vBulletin, Joomla) or tags, you will end up with multiple copies of the same content with different urls:
http://www.mydomain.com/showthread.php?id=12345
http://www.mydomain.com/clean_thread_name-t12345.html
http://www.mydomain.com/?id=12345
http://www.mydomain.com/index.php
Where all four versions are pointing to the exact same page.
=
To fix this, you have to "301 redirect" to a single clean version of each page.
301 redirect is the act of telling search engines, your page permanently moved to a new address, keeping all link juice flowing to a single place.
Here's how:
At the top of every display script, fetch the current clean-url for that page and if that doesn't match REQUEST_URI, redirect the user to the clean version:
// For SEO purposes, 301 redirect if url
// is not what it needs to be
{
// Get clean url for this page
$clean_url = GetCleanThreadURL($forumid, $threadid);
$current_url_noparams = $REQUEST_URI;
if (($pos = strpos($current_url_noparams,"?"))!==false)
{
$current_url_noparams = substr($current_url_noparams,0,$pos);
}
// If we have a session ID, or current_no_params doesn't match clean url
if (strpos($REQUEST_URI, "PHPSESSID")!==false ||
Strcasecmp($current_url_noparams, $clean_rul)!=0)
{
// Redirect user to clean url
Header( "HTTP/1.1 301 Moved Permanently" );
Header( "Location: $clean_url");
return;
}
}
#1. Avoid session variables in your urls
This is bad: http://www.mydomain.com/?PHPSESSID=1234567
#2. Avoid duplicate content
If you're using clean urls, category pages (WordPress, vBulletin, Joomla) or tags, you will end up with multiple copies of the same content with different urls:
http://www.mydomain.com/showthread.php?id=12345
http://www.mydomain.com/clean_thread_name-t12345.html
http://www.mydomain.com/?id=12345
http://www.mydomain.com/index.php
Where all four versions are pointing to the exact same page.
=
To fix this, you have to "301 redirect" to a single clean version of each page.
301 redirect is the act of telling search engines, your page permanently moved to a new address, keeping all link juice flowing to a single place.
Here's how:
At the top of every display script, fetch the current clean-url for that page and if that doesn't match REQUEST_URI, redirect the user to the clean version:
// For SEO purposes, 301 redirect if url
// is not what it needs to be
{
// Get clean url for this page
$clean_url = GetCleanThreadURL($forumid, $threadid);
$current_url_noparams = $REQUEST_URI;
if (($pos = strpos($current_url_noparams,"?"))!==false)
{
$current_url_noparams = substr($current_url_noparams,0,$pos);
}
// If we have a session ID, or current_no_params doesn't match clean url
if (strpos($REQUEST_URI, "PHPSESSID")!==false ||
Strcasecmp($current_url_noparams, $clean_rul)!=0)
{
// Redirect user to clean url
Header( "HTTP/1.1 301 Moved Permanently" );
Header( "Location: $clean_url");
return;
}
}
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Mobile Application Development, 11-17-2010 |
Thank you so much for the information regarding 301 redirect and its effect
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