In case of error messages (4xx) or redirection problems (3xx), it may be appropriate to restore the default .htaccess file provided with the CMS in use. Here is a short list of the default .htaccess files provided for the most popular and most used CMS.
WordPress
There are three types of .htaccess files related to different variants of WordPress. The first is the basic rule in case you use a single website, the other two concern the multisite versions, one configured with domains in subfolders, which uses the "subdirectory" rule, the other which uses the "subdomain" rule if add-on domains are in subdomains.
WordPress Basic
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
WordPress Multisite (Subfolder)
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(wp-(content|admin|includes).*) $2 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]
WordPress Multisite (Subdomain)
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteRule ^wp-admin$ wp-admin/ [R=301,L]
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule ^(wp-(content|admin|includes).*) $1 [L]
RewriteRule ^(.*\.php)$ $1 [L]
RewriteRule . index.php [L]
Joomla
IndexIgnore *
Header always set X-Content-Type-Options "nosniff"
Options +FollowSymlinks
Options -Indexes
<FilesMatch "\.svg$">
Header always set Content-Security-Policy "script-src 'none'"
RewriteEngine On
RewriteCond %{QUERY_STRING} base64_encode[^(]*\([^)]*\) [OR]
RewriteCond %{QUERY_STRING} (<|%3C)([^s]*s)+cript.*(>|%3E) [NC,OR]
RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]
RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})
RewriteRule .* index.php [F]
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteCond %{REQUEST_URI} !^/index\.php
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* index.php [L]
Drupal 7
<FilesMatch "\.(engine|inc|info|install|make|module|profile|test|po|sh|.*sql|theme|tpl(\.php)?|xtmpl)(~|\.sw[op]|\.bak|\.orig|\.save)?$|^(\.(?!well-known).*|Entries.*|Repository|Root|Tag|Template|composer\.(json|lock)|web\.config)$|^#.*#$|\.php(~|\.sw[op]|\.bak|\.orig\.save)$">
Require all denied
Order allow,deny
Options -Indexes
Options +FollowSymLinks
ErrorDocument 404 /index.php
DirectoryIndex index.php index.html index.htm
php_flag magic_quotes_gpc off
php_flag magic_quotes_sybase off
php_flag register_globals off
php_flag session.auto_start off
php_value mbstring.http_input pass
php_value mbstring.http_output pass
php_flag mbstring.encoding_translation off
ExpiresActive On
ExpiresDefault A1209600
ExpiresActive Off
RewriteEngine on
RewriteRule ^ - [E=protossl]
RewriteCond %{HTTPS} on
RewriteRule ^ - [E=protossl:s]
RewriteRule ^ - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteRule "/\.|^\.(?!well-known/)" - [F]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !=/favicon.ico
RewriteRule ^ index.php [L]
RewriteCond %{HTTP:Accept-encoding} gzip
RewriteCond %{REQUEST_FILENAME}\.gz -s
RewriteRule ^(.*)\.css $1\.css\.gz [QSA]
RewriteCond %{HTTP:Accept-encoding} gzip
RewriteCond %{REQUEST_FILENAME}\.gz -s
RewriteRule ^(.*)\.js $1\.js\.gz [QSA]
RewriteRule \.css\.gz$ - [T=text/css,E=no-gzip:1]
RewriteRule \.js\.gz$ - [T=text/javascript,E=no-gzip:1]
<FilesMatch "(\.js\.gz|\.css\.gz)$">
Header set Content-Encoding gzip
Header append Vary Accept-Encoding
Header always set X-Content-Type-Options nosniff
Drupal 9
<FilesMatch "\.(engine|inc|install|make|module|profile|po|sh|.*sql|theme|twig|tpl(\.php)?|xtmpl|yml)
(~|\.sw[op]|\.bak|\.orig|\.save)?$|^(\.(?!well-known).*|Entries.*|Repository|Root|Tag|Template|composer\.(json|lock)|web\.config)$|^#.*#$|\.php(~|\.sw[op]|\.bak|\.orig|\.save)$">
Require all denied
Order allow,deny
Options -Indexes
DirectoryIndex index.php index.html index.htm
AddType image/svg+xml svg svgz
AddEncoding gzip svgz
php_value assert.active 0
ExpiresActive On
ExpiresDefault A1209600
ExpiresActive Off
FallbackResource /index.php
RewriteEngine on
RewriteRule ^ - [E=protossl]
RewriteCond %{HTTPS} on
RewriteRule ^ - [E=protossl:s]
RewriteRule ^ - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteRule "/\.|^\.(?!well-known/)" - [F]
RewriteCond %{REQUEST_URI} ^(.*)?/(install\.php) [OR]
RewriteCond %{REQUEST_URI} ^(.*)?/(rebuild\.php)
RewriteCond %{REQUEST_URI} !core
RewriteRule ^ %1/core/%2 [L,QSA,R=301]
RewriteRule ^core/install\.php core/install.php?rewrite=ok [QSA,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !=/favicon.ico
RewriteRule ^ index.php [L]
RewriteCond %{REQUEST_URI} !/core/[^/]*\.php$
RewriteCond %{REQUEST_URI} !/core/modules/system/tests/https?\.php
RewriteCond %{REQUEST_URI} !/core/modules/statistics/statistics\.php$
RewriteRule "^(.+/.*|autoload)\.php($|/)" - [F]
RewriteCond %{HTTP:Accept-encoding} gzip
RewriteCond %{REQUEST_FILENAME}\.gz -s
RewriteRule ^(.*)\.css $1\.css\.gz [QSA]
RewriteCond %{HTTP:Accept-encoding} gzip
RewriteCond %{REQUEST_FILENAME}\.gz -s
RewriteRule ^(.*)\.js $1\.js\.gz [QSA]
RewriteRule \.css\.gz$ - [T=text/css,E=no-gzip:1,E=no-brotli:1]
RewriteRule \.js\.gz$ - [T=text/javascript,E=no-gzip:1,E=no-brotli:1]
<FilesMatch "(\.js\.gz|\.css\.gz)$">
Header set Content-Encoding gzip
Header append Vary Accept-Encoding
Header always set X-Content-Type-Options nosniff
RequestHeader unset Proxy
PrestaShop
SetEnv HTTP_MOD_REWRITE On
RewriteEngine on
RewriteRule . - [E=REWRITEBASE:/]
RewriteRule ^api$ api/ [L]
RewriteRule ^api/(.*)$ %{ENV:REWRITEBASE}webservice/dispatcher.php?url=$1 [QSA,L]
RewriteRule ^([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %
{ENV:REWRITEBASE}img/p/$1/$1$2$3.jpg [L]
RewriteRule ^([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %
{ENV:REWRITEBASE}img/p/$1/$2/$1$2$3$4.jpg [L]
RewriteRule ^([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %
{ENV:REWRITEBASE}img/p/$1/$2/$3/$1$2$3$4$5.jpg [L]
RewriteRule ^([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %
{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$1$2$3$4$5$6.jpg [L]
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %
{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$1$2$3$4$5$6$7.jpg [L]
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %
{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$6/$1$2$3$4$5$6$7$8.jpg [L]
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %
{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$6/$7/$1$2$3$4$5$6$7$8$9.jpg [L]
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-
9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$6/$7/$8/$1$2$3$4$5$6$7$8$
9$10.jpg [L]
RewriteRule ^c/([0-9]+)(\-[\.*_a-zA-Z0-9-]*)(-[0-9]+)?/.+\.jpg$ %
{ENV:REWRITEBASE}img/c/$1$2$3.jpg [L]
RewriteRule ^c/([a-zA-Z_-]+)(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/c/$1$2.jpg [L]
RewriteRule ^images_ie/?([^/]+)\.(jpe?g|png|gif)$ js/jquery/plugins/fancybox/images/$1.$2 [L]
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]
RewriteRule ^.*$ %{ENV:REWRITEBASE}index.php [NC,L]
AddType application/vnd.ms-fontobject .eot
AddType font/ttf .ttf
AddType font/otf .otf
AddType font/woff2 .woff2
AddType application/x-font-woff .woff
<FilesMatch "\.(ttf|ttc|otf|eot|woff|woff2|svg)$">
Header set Access-Control-Allow-Origin "*"
ErrorDocument 404 /index.php?controller=404
Magento
DirectoryIndex index.php
php_value memory_limit 512M
php_value max_execution_time 18000
php_flag magic_quotes_gpc off
php_flag session.auto_start off
php_flag suhosin.session.cryptua off
php_flag zend.ze1_compatibility_mode Off
SecFilterEngine Off
SecFilterScanPOST Off
SSLOptions StdEnvVars
Options +FollowSymLinks
RewriteEngine on
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteCond %{REQUEST_URI} !^/(media|skin|js)/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
RewriteRule .* index.php [L]
AddDefaultCharset Off
ExpiresDefault "access plus 1 year"
Order allow,deny
Allow from all
