If you attempt to turn RewriteEngine On a web server without the mod_rewrite module installed and enabled, this will cause a 500 Internal Server Error. Also, each time the request is made on a web server, .htaccess file will be called upon. That means, to optimize and better serve .htaccess file (particularly for Google’s Page Experience update), make sure you insert 301 redirection rules at precise points.
Knowing this, let’s explore how to setup 301 Moved Permanently using Apache Server file called .htaccess
How to 301 Redirect .htaccess
Examples for .htaccess 301 Redirection
<IfModule mod_rewrite.c>
Options +FollowSymLinks
RewriteEngine On
RewriteRule ^oldURL/ https://www.example.com/newURL/ [R=301,NC,L]
</IfModule>
<IfModule mod_rewrite.c>
Options +FollowSymLinks
RewriteEngine On
#redirect folder to new folder (e.g. when you change category)
RewriteRule ^example-old-folder/(.*)$ https://www.example.com/new-folder/$1 [R=301,NC,L]
</IfModule>
<IfModule mod_rewrite.c>
Options +FollowSymLinks
RewriteEngine On
#redirect ENTIRE old domain to NEW Domain (both www and non-www redirects)
RewriteCond %{HTTP_HOST} ^olddomain.com [NC,OR]
RewriteCond %{HTTP_HOST} ^www.olddomain.com [NC]
RewriteRule ^(.*)$ https://www.newdomain.net/$1 [L,R=301,NC]
</IfModule>
<IfModule mod_rewrite.c>
Options +FollowSymLinks
RewriteEngine On
#Force HTTPS SSL with htaccess
RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://www.example.com/$1 [R,L]
</IfModule>
<IfModule mod_rewrite.c>
Options +FollowSymLinks
RewriteEngine On
#CHANGE file extension redirect
RewriteCond %{REQUEST_URI} .php$
RewriteRule ^(.*).php$ /$1.html [R=301,NC,L]
#you can also use this format to (perhaps helpful when redirecting to new domain)
RewriteRule (.+)\.php?$ https://www.example.com/$1.html [R=301,NC,L]
</IfModule>
<IfModule mod_rewrite.c>
Options +FollowSymLinks
RewriteEngine On
#remove file extension redirect
RewriteRule (.+)\.html?$ https://www.example.com/$1/ [R=301,NC,L]
RewriteRule (.+)\.php?$ https://www.example.com/$1/ [R=301,NC,L]
</IfModule>
To force a directory to serve over SSL, create a .htaccess file inside that subfolder and add the below code. Ideal for HTTPS Failing issues on subdomains
<IfModule mod_rewrite.c>
Options +FollowSymLinks
RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteCond %{REQUEST_URI} samplefolder
RewriteRule ^(.*)$ https://www.example.com/samplefolder/$1 [R,L]
</IfModule>
What if you run in to issues and .htaccess file RewriteRules do not work as expected? Then, change their location, for example: WordPress has default .htaccess rules for it to work correctly, depending on what you are redirecting, if you place the 301 rules above this default code, perhaps this may solve problems when 301 redirects aren’t working.
301 Redirection on NGINX Server
Creating 301 redirection on NGINX server is bit different in a sense that redirection rules are added in nginx.conf file. Below is 301 redirect example for nginx:
server {
rewrite ^/oldURL/$ /newURL/ permanent;
}
I really appreciate this post a lot. Thanks!