diff --git a/src/variations/fpm-apache/etc/apache2/vhost-templates/http.conf b/src/variations/fpm-apache/etc/apache2/vhost-templates/http.conf
index 8284272f..58512166 100644
--- a/src/variations/fpm-apache/etc/apache2/vhost-templates/http.conf
+++ b/src/variations/fpm-apache/etc/apache2/vhost-templates/http.conf
@@ -13,6 +13,11 @@ DocumentRoot ${APACHE_DOCUMENT_ROOT}
     DirectoryIndex index.php index.html index.htm
 </Directory>
 
+# Redirect /index.php/... to /... to prevent SEO duplicate content
+RewriteEngine On
+RewriteCond %{THE_REQUEST} \s/index\.php/
+RewriteRule ^/index\.php(/.+)$ $1 [R=301,L,QSA]
+
 # Healthchecks: Set /healthcheck to be the healthcheck URL
 ProxyPass "/healthcheck" "fcgi://localhost:9000"
 ProxyPassReverse "/healthcheck" "fcgi://localhost:9000"
diff --git a/src/variations/fpm-apache/etc/apache2/vhost-templates/https.conf b/src/variations/fpm-apache/etc/apache2/vhost-templates/https.conf
index c721ece5..dd23e7e9 100644
--- a/src/variations/fpm-apache/etc/apache2/vhost-templates/https.conf
+++ b/src/variations/fpm-apache/etc/apache2/vhost-templates/https.conf
@@ -18,6 +18,11 @@ DocumentRoot ${APACHE_DOCUMENT_ROOT}
     DirectoryIndex index.php index.html index.htm
 </Directory>
 
+# Redirect /index.php/... to /... to prevent SEO duplicate content
+RewriteEngine On
+RewriteCond %{THE_REQUEST} \s/index\.php/
+RewriteRule ^/index\.php(/.+)$ $1 [R=301,L,QSA]
+
 # Healthchecks: Set /healthcheck to be the healthcheck URL
 ProxyPass "/healthcheck" "fcgi://localhost:9000"
 ProxyPassReverse "/healthcheck" "fcgi://localhost:9000"
diff --git a/src/variations/fpm-nginx/etc/nginx/site-opts.d/http.conf.template b/src/variations/fpm-nginx/etc/nginx/site-opts.d/http.conf.template
index 3b2cd4b7..02d9c54f 100644
--- a/src/variations/fpm-nginx/etc/nginx/site-opts.d/http.conf.template
+++ b/src/variations/fpm-nginx/etc/nginx/site-opts.d/http.conf.template
@@ -36,6 +36,11 @@ location ~* ^/storage/.*\.php$ {
     deny all;
 }
 
+# Redirect /index.php/... to /... to prevent SEO duplicate content
+location ~ ^/index\.php(/.+)$ {
+    return 301 $1$is_args$args;
+}
+
 # Pass "*.php" files to PHP-FPM
 location ~ \.php$ {
     fastcgi_pass   127.0.0.1:9000;
diff --git a/src/variations/fpm-nginx/etc/nginx/site-opts.d/https.conf.template b/src/variations/fpm-nginx/etc/nginx/site-opts.d/https.conf.template
index a796f5d7..547bfe1b 100644
--- a/src/variations/fpm-nginx/etc/nginx/site-opts.d/https.conf.template
+++ b/src/variations/fpm-nginx/etc/nginx/site-opts.d/https.conf.template
@@ -42,6 +42,11 @@ location ~* ^/storage/.*\.php$ {
     deny all;
 }
 
+# Redirect /index.php/... to /... to prevent SEO duplicate content
+location ~ ^/index\.php(/.+)$ {
+    return 301 $1$is_args$args;
+}
+
 # Pass "*.php" files to PHP-FPM
 location ~ \.php$ {
     fastcgi_pass   127.0.0.1:9000;
diff --git a/src/variations/frankenphp/etc/frankenphp/Caddyfile b/src/variations/frankenphp/etc/frankenphp/Caddyfile
index 75647941..cc883e8e 100644
--- a/src/variations/frankenphp/etc/frankenphp/Caddyfile
+++ b/src/variations/frankenphp/etc/frankenphp/Caddyfile
@@ -59,6 +59,10 @@
 	}
 	log_skip @healthcheckpath
 
+	# Redirect /index.php/... to /... to prevent SEO duplicate content
+	@indexphp path_regexp indexphp ^/index\.php(/.+)$
+	redir @indexphp {re.indexphp.1} 301
+
 	php_server {
 		{$CADDY_PHP_SERVER_OPTIONS}
 	}