www.domain.de/index.php zeigt 404 bei mehrsprachiger Website

Hallo zusammen,

wir haben ein Projekt seit einiger Zeit auf deutsch und englisch (zweisprachig) umgestellt. Nun ist die www.domain.de/index.php micht mehr
zu erreichen bzw. bekommt am die 404 wenn man die Seite manuell öffnet. Spricht man die URL ohne index.php an wird der Nutzer auf die
entsprechende Sprachversion www.domain.de/de/ geleitet und alles funktioniert.

Ich nehme nun an das der Fehler auf der index.php schlußendlich von Goolge abgestraft wird!?
Wie kann man verhindern das eine 404 ausgegeben wir bzw. welche Lösungen stehen hier zur Verfügung.

Viele Dank vorab und Grüße
Mirko

Hast du URLs umschreiben aktiviert?
Warum sollte das von Google abgestraft werden?

Hallo Spooky,
ja, URL umschreiben ist aktiviert.

Zur Abstrafung von Google:
Die Seite, also die Startseite (index.php), war bis zur Umstellung auf zweisprachig immer super gelistet
bei Google... nun "säuft" die Seite so langsam ab und deswegen mutmaße ich das es ggf. an der 404
liegt.

Grüße
Mirko

Zitat:

---

Zitat von gia-online

Zur Abstrafung von Google:
Die Seite, also die Startseite (index.php), war bis zur Umstellung auf zweisprachig immer super gelistet
bei Google... nun "säuft" die Seite so langsam ab und deswegen mutmaße ich das es ggf. an der 404
liegt.

---

index.php ist nicht die "Startseite" sondern der Einstiegspunkt der Contao (2 & 3) Webapplikation. Die tatsächliche Startseite resultiert aus deinem Seitenbaum. Wenn du example.org/index.php aufrufst, wirst du je nach eingestellter Browser Sprache auf die jeweilige Sprache weiter geleitet.

Funktionieren denn alle alten URLs noch, die im Google Index sind? Wenn nicht, dann ist das wohl der Grund für die schlechtere Platzierung.

sorry, ich meine auch Einstiegspunkt... aber die index.php leitet nicht auf die im Seitenbaum angelegt Startseite
sondern gibt 404 raus.

Die alten URL'S sind nicht mehr im Google-Index sondern es werden die Neuen gelistet. Jedoch findet man die
Startseite unter www.example.de nicht mehr.

Gruß
Mirko

Zitat:

---

Zitat von gia-online

sorry, ich meine auch Einstiegspunkt... aber die index.php leitet nicht auf die im Seitenbaum angelegt Startseite
sondern gibt 404 raus.

---

Das ist nicht normal. Poste mal einen Link zur Seite.

Zitat:

---

Zitat von gia-online

Jedoch findet man die
Startseite unter www.example.de nicht mehr.

---

Was genau meinst du damit? Warum nicht?

Zitat:

---

Zitat von Spooky

Das ist nicht normal. Poste mal einen Link zur Seite.

www.beruf-gaertner.de


Was genau meinst du damit? Warum nicht?

---

Es werden nur die Unterseiten z.B. www.examplae.de/de/beispiel.html gelistet.

Zitat:

---

Zitat von gia-online

www.beruf-gaertner.de

---

Du solltest den Alias deiner Startseiten auf "index" setzen, nicht "home".

Poste deine gesamte .htaccess

Code:

---

##
# Contao Open Source CMS
#
# Copyright (C) 2005-2013 Leo Feyer
#
# @package Core
# @link    https://contao.org
# @license http://www.gnu.org/licenses/lgpl-3.0.html LGPL
##

##
# Prevent access to the Contao template files
##
<FilesMatch "\.(tpl|html5|xhtml)$">
  <IfModule !mod_authz_core.c>
# disabled apache 2.4    Order deny,allow
Require all denied
  </IfModule>
  <IfModule mod_authz_core.c>
    Require all denied
  </IfModule>
</FilesMatch>

##
# Allow access from all domains for webfonts
# @see https://github.com/h5bp/html5-boilerplate
##
<IfModule mod_headers.c>
  <FilesMatch "\.(ttf|ttc|otf|eot|woff|font.css)$">
    Header set Access-Control-Allow-Origin "*"
  </FilesMatch>
</IfModule>

##
# Disable ETags
# @see http://developer.yahoo.com/performance/rules.html#etags
##
FileETag None
<IfModule mod_headers.c>
  Header unset ETag
</IfModule>

##
# Set the proper MIME types
# @see https://github.com/h5bp/html5-boilerplate
##
<IfModule mod_mime.c>
  AddType application/javascript              js jsonp
  AddType application/json                    json
  AddType audio/ogg                          oga ogg
  AddType audio/mp4                          m4a f4a f4b
  AddType video/ogg                          ogv
  AddType video/mp4                          mp4 m4v f4v f4p
  AddType video/webm                          webm
  AddType video/x-flv                        flv
  AddType image/svg+xml                      svg svgz
  AddEncoding gzip                            svgz
  AddType application/vnd.ms-fontobject      eot
  AddType application/x-font-ttf              ttf ttc
  AddType font/opentype                      otf
  AddType application/x-font-woff            woff
  AddType image/x-icon                        ico
  AddType image/webp                          webp
  AddType text/cache-manifest                appcache manifest
  AddType text/x-component                    htc
  AddType application/xml                    rss atom xml rdf
  AddType application/x-web-app-manifest+json webapp
  AddType text/x-vcard                        vcf
  AddType application/x-shockwave-flash      swf
</IfModule>

##
# Gzip compression
# @see https://github.com/h5bp/html5-boilerplate
##
<IfModule mod_deflate.c>
  <IfModule mod_filter.c>
    AddOutputFilterByType DEFLATE text/html text/plain text/css application/json
    AddOutputFilterByType DEFLATE application/javascript
    AddOutputFilterByType DEFLATE text/xml application/xml text/x-component
    AddOutputFilterByType DEFLATE application/xhtml+xml application/rss+xml application/atom+xml
    AddOutputFilterByType DEFLATE image/x-icon image/svg+xml application/vnd.ms-fontobject application/x-font-ttf font/opentype
  </IfModule>
</IfModule>

##
# Expires headers (for better cache control)
# @see https://github.com/h5bp/html5-boilerplate
##
<IfModule mod_expires.c>
  ExpiresActive on

  ##
  # Productional website
  ##
  ExpiresByType text/cache-manifest          "access plus 0 seconds"
  ExpiresByType text/html                    "access plus 0 seconds"
  ExpiresByType text/xml                      "access plus 0 seconds"
  ExpiresByType application/xml              "access plus 0 seconds"
  ExpiresByType application/json              "access plus 0 seconds"
  ExpiresByType application/rss+xml          "access plus 1 hour"
  ExpiresByType application/atom+xml          "access plus 1 hour"
  ExpiresByType image/gif                    "access plus 1 month"
  ExpiresByType image/png                    "access plus 1 month"
  ExpiresByType image/jpeg                    "access plus 1 month"
  ExpiresByType image/x-icon                  "access plus 1 month"
  ExpiresByType video/ogg                    "access plus 1 month"
  ExpiresByType audio/ogg                    "access plus 1 month"
  ExpiresByType video/mp4                    "access plus 1 month"
  ExpiresByType video/webm                    "access plus 1 month"
  ExpiresByType text/x-component              "access plus 1 month"
  ExpiresByType application/x-font-ttf        "access plus 1 month"
  ExpiresByType font/opentype                "access plus 1 month"
  ExpiresByType application/x-font-woff      "access plus 1 month"
  ExpiresByType image/svg+xml                "access plus 1 month"
  ExpiresByType application/vnd.ms-fontobject "access plus 1 month"
  ExpiresByType text/css                      "access plus 1 year"
  ExpiresByType application/javascript        "access plus 1 year"

  ##
  # Disable caching during development
  # @see https://github.com/contao/core/issues/4364
  ##
  #ExpiresByType text/cache-manifest          "access"
  #ExpiresByType text/html                    "access"
  #ExpiresByType text/xml                      "access"
  #ExpiresByType application/xml              "access"
  #ExpiresByType application/json              "access"
  #ExpiresByType application/rss+xml          "access"
  #ExpiresByType application/atom+xml          "access"
  #ExpiresByType image/gif                    "access"
  #ExpiresByType image/png                    "access"
  #ExpiresByType image/jpeg                    "access"
  #ExpiresByType image/x-icon                  "access"
  #ExpiresByType video/ogg                    "access"
  #ExpiresByType audio/ogg                    "access"
  #ExpiresByType video/mp4                    "access"
  #ExpiresByType video/webm                    "access"
  #ExpiresByType text/x-component              "access"
  #ExpiresByType application/x-font-ttf        "access"
  #ExpiresByType font/opentype                "access"
  #ExpiresByType application/x-font-woff      "access"
  #ExpiresByType image/svg+xml                "access"
  #ExpiresByType application/vnd.ms-fontobject "access"
  #ExpiresByType text/css                      "access"
  #ExpiresByType application/javascript        "access"

</IfModule>

##
# Header adjustments
##
<IfModule mod_headers.c>

  ##
  # Disable caching during development
  # @see https://github.com/contao/core/issues/4364
  ##
  #Header unset Cache-Control
  #Header append Cache-Control must-revalidate

  ##
  # Do not cache the cron.txt file
  # @see https://github.com/contao/core/issues/5105
  ##
  <FilesMatch "cron\.txt$">
    Header set Cache-Control "no-cache, no-store, must-revalidate, max-age=0, proxy-revalidate, no-transform"
  </FilesMatch>

  ##
  # Add a Vary Accept-Encoding header for the compressed resources. If you
  # modify the file types above, make sure to change them here accordingly.
  # @see http://developer.yahoo.com/performance/rules.html#gzip
  #
  # Note: If you are using a case-sensitive file system like HFS+ or ext4, you
  # have to change the <FilesMatch> directive as follows:
  #
  # <FilesMatch "\.(?i:js|css|xml|gz)$">
  #
  # For more information see: https://github.com/contao/core/issues/4364
  ##
  <FilesMatch "\.(js|css|xml|gz)$">
    Header append Vary Accept-Encoding
  </FilesMatch>

</IfModule>

##
# Disable MultiViews if you are having issues with requests returning the wrong
# page. Requires AllowOverride Options=All,MultiViews to be set here.
# @see https://github.com/contao/core/issues/3521
##
#Options -MultiViews

##
# URL rewriting
##
<IfModule mod_rewrite.c>
  RewriteEngine On

  ##
  # Change the RewriteBase if your Contao installation is in a subdirectoy and
  # the rewrite rules are not working properly. Usage examples:
  #
  #  RewriteBase /contao-3.0.0
  #  RewriteBase /path/to/contao
  #
  # Depending on your server, you might have to remove the line entirely.
  ##
  RewriteBase /

  ##
  # Uncomment the following lines and replace "domain.com" with your domain
  # name to redirect requests without "www" to the correct domain.
  ##
 
  #First rewrite any request to the wrong domain to use the correct one (here www.)
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

#Now, rewrite to HTTPS:
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

  ##
  # If you cannot use mod_deflate, uncomment the following lines to load a
  # compressed .gz version of the aggregated Contao JavaScript and CSS files.
  ##
  #AddEncoding gzip .gz
  #<FilesMatch "\.js\.gz$">
  #  AddType "text/javascript" .gz
  #</FilesMatch>
  #<FilesMatch "\.css\.gz$">
  #  AddType "text/css" .gz
  #</FilesMatch>
  #RewriteCond %{HTTP:Accept-encoding} gzip
  #RewriteCond %{REQUEST_FILENAME} \.(js|css)$
  #RewriteCond %{REQUEST_FILENAME}.gz -f
  #RewriteRule ^(.*)$ $1.gz [QSA,L]

  ##
  # Do not rewrite requests for static files or folders such as style sheets,
  # images, movies or text documents. Do not add the URL suffix here!
  #
  # Note: If you are using a case-sensitive file system like HFS+ or ext4, you
  # have to change the <FilesMatch> directive as follows:
  #
  # <FilesMatch "\.(?i:htm|php|js|css| … |gz)$">
  #
  # For more information see: https://github.com/contao/core/issues/4364
  ##
  <FilesMatch "\.(htm|html|php|js|css|htc|png|gif|jpe?g|ico|xml|csv|txt|swf|flv|mp4|webm|ogv|mp3|ogg|oga|eot|woff|svg|ttf|pdf|gz)$">
    RewriteEngine Off
  </FilesMatch>

  ##
  # By default, Contao adds ".html" to the generated URLs to simulate static
  # HTML documents. If you change the URL suffix in the back end settings, make
  # sure to change it here accordingly!
  #
  #  RewriteRule .*\.html$ index.php [L]  # URL suffix .html
  #  RewriteRule .*\.txt$ index.php [L]    # URL suffix .txt
  #  RewriteRule .*\.json$ index.php [L]  # URL suffix .json
  #
  # If you do not want to use an URL suffix at all, you have to add a second
  # line to prevent URLs that point to folders from being rewritten (see #4031).
  #
  #  RewriteCond %{REQUEST_FILENAME} !-d
  #  RewriteRule .* index.php [L]
  #
  # If you are using mod_cache, it is recommended to use the RewriteRule below,
  # which adds the query string to the internal URL:
  #
  #  RewriteRule (.*\.html)$ index.php/$1 [L]
  #
  # Note that not all environments support mod_rewrite and mod_cache.
  ##
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteRule .*\.html$ index.php [L]

  ##
  # The following rules are required if you want to pass the language as first
  # URL parameter (added in Contao 2.11). The first rule rewrites an empty URL
  # to the front end controller, the second one adds a missing trailing slash.
  ##
  RewriteRule ^[a-z]{2}(\-[A-Z]{2})?/$ index.php [L]
  RewriteRule ^([a-z]{2}(\-[A-Z]{2})?)$ $1/ [R=301,L]

</IfModule>

---

1. Beim nächsten mal bitte gleich in [code] Tags.
2. Deine .htaccess ist nicht aktuell. Stelle die Original .htaccess.default von Contao 3.5.30 her und füge dort dann deine Änderungen die du brauchst hinzu.

zu 1. -> werde ich machen.
zu 2. -> vielen Dank für Deine Hilfe!!!

Gruß und DANK
Mirko

Habe die .htaccess wie folgt aktualisiert. Leider hat dies mein Problem mit der 404 auf der www.domain.de/index.php nicht behoben.

Muss ich hier ggf. noch ein RedirectMatch reinschreiben und auf einen "Sprachenordner" z.B. www.domain.de/de/ weiterleiten?

Code:

---

##
# Contao Open Source CMS
#
# Copyright (c) 2005-2016 Leo Feyer
#
# @license LGPL-3.0+
##

##
# Prevent access to the Contao template files
##
<FilesMatch "\.(tpl|html5|xhtml)$">
  <IfModule !mod_authz_core.c>
    Order deny,allow
    Deny from all
  </IfModule>
  <IfModule mod_authz_core.c>
    Require all denied
  </IfModule>
</FilesMatch>

##
# Allow access from all domains for webfonts
# @see https://github.com/h5bp/html5-boilerplate
##
<IfModule mod_headers.c>
  <FilesMatch "\.(ttf|ttc|otf|eot|woff2?|font\.css)$">
    Header set Access-Control-Allow-Origin "*"
  </FilesMatch>
</IfModule>

##
# Disable ETags
# @see http://developer.yahoo.com/performance/rules.html#etags
##
FileETag None
<IfModule mod_headers.c>
  Header unset ETag
</IfModule>

##
# Set the proper MIME types
# @see https://github.com/h5bp/html5-boilerplate
##
<IfModule mod_mime.c>
  AddType application/javascript              js jsonp
  AddType application/json                    json
  AddType audio/ogg                          oga ogg
  AddType audio/mp4                          m4a f4a f4b
  AddType video/ogg                          ogv
  AddType video/mp4                          mp4 m4v f4v f4p
  AddType video/webm                          webm
  AddType video/x-flv                        flv
  AddType image/svg+xml                      svg svgz
  AddEncoding gzip                            svgz
  AddType application/vnd.ms-fontobject      eot
  AddType application/x-font-ttf              ttf ttc
  AddType font/opentype                      otf
  AddType application/x-font-woff            woff woff2
  AddType image/x-icon                        ico
  AddType image/webp                          webp
  AddType text/cache-manifest                appcache manifest
  AddType text/x-component                    htc
  AddType application/xml                    rss atom xml rdf
  AddType application/x-web-app-manifest+json webapp
  AddType text/x-vcard                        vcf
  AddType application/x-shockwave-flash      swf
</IfModule>

##
# Gzip compression
# @see https://github.com/h5bp/html5-boilerplate
##
<IfModule mod_deflate.c>
  <IfModule mod_filter.c>
    AddOutputFilterByType DEFLATE text/html text/plain text/css application/json
    AddOutputFilterByType DEFLATE application/javascript
    AddOutputFilterByType DEFLATE text/xml application/xml text/x-component
    AddOutputFilterByType DEFLATE application/xhtml+xml application/rss+xml application/atom+xml
    AddOutputFilterByType DEFLATE image/x-icon image/svg+xml application/vnd.ms-fontobject application/x-font-ttf font/opentype
  </IfModule>
</IfModule>

##
# Expires headers (for better cache control)
# @see https://github.com/h5bp/html5-boilerplate
##
<IfModule mod_expires.c>
  ExpiresActive on

  ##
  # Productional website
  ##
  ExpiresByType text/cache-manifest          "access plus 0 seconds"
  ExpiresByType text/html                    "access plus 0 seconds"
  ExpiresByType text/xml                      "access plus 0 seconds"
  ExpiresByType application/xml              "access plus 0 seconds"
  ExpiresByType application/json              "access plus 0 seconds"
  ExpiresByType application/rss+xml          "access plus 1 hour"
  ExpiresByType application/atom+xml          "access plus 1 hour"
  ExpiresByType image/gif                    "access plus 1 month"
  ExpiresByType image/png                    "access plus 1 month"
  ExpiresByType image/jpeg                    "access plus 1 month"
  ExpiresByType image/x-icon                  "access plus 1 month"
  ExpiresByType video/ogg                    "access plus 1 month"
  ExpiresByType audio/ogg                    "access plus 1 month"
  ExpiresByType video/mp4                    "access plus 1 month"
  ExpiresByType video/webm                    "access plus 1 month"
  ExpiresByType text/x-component              "access plus 1 month"
  ExpiresByType application/x-font-ttf        "access plus 1 month"
  ExpiresByType font/opentype                "access plus 1 month"
  ExpiresByType application/x-font-woff      "access plus 1 month"
  ExpiresByType image/svg+xml                "access plus 1 month"
  ExpiresByType application/vnd.ms-fontobject "access plus 1 month"
  ExpiresByType text/css                      "access plus 1 year"
  ExpiresByType application/javascript        "access plus 1 year"

  ##
  # Disable caching during development
  # @see https://github.com/contao/core/issues/4364
  ##
  #ExpiresByType text/cache-manifest          "access"
  #ExpiresByType text/html                    "access"
  #ExpiresByType text/xml                      "access"
  #ExpiresByType application/xml              "access"
  #ExpiresByType application/json              "access"
  #ExpiresByType application/rss+xml          "access"
  #ExpiresByType application/atom+xml          "access"
  #ExpiresByType image/gif                    "access"
  #ExpiresByType image/png                    "access"
  #ExpiresByType image/jpeg                    "access"
  #ExpiresByType image/x-icon                  "access"
  #ExpiresByType video/ogg                    "access"
  #ExpiresByType audio/ogg                    "access"
  #ExpiresByType video/mp4                    "access"
  #ExpiresByType video/webm                    "access"
  #ExpiresByType text/x-component              "access"
  #ExpiresByType application/x-font-ttf        "access"
  #ExpiresByType font/opentype                "access"
  #ExpiresByType application/x-font-woff      "access"
  #ExpiresByType image/svg+xml                "access"
  #ExpiresByType application/vnd.ms-fontobject "access"
  #ExpiresByType text/css                      "access"
  #ExpiresByType application/javascript        "access"

</IfModule>

##
# Header adjustments
##
<IfModule mod_headers.c>

  ##
  # Disable caching during development
  # @see https://github.com/contao/core/issues/4364
  ##
  #Header unset Cache-Control
  #Header append Cache-Control must-revalidate

  ##
  # Do not cache the cron.txt file
  # @see https://github.com/contao/core/issues/5105
  ##
  <FilesMatch "cron\.txt$">
    Header set Cache-Control "no-cache, no-store, must-revalidate, max-age=0, proxy-revalidate, no-transform"
  </FilesMatch>

  ##
  # Add a Vary Accept-Encoding header for the compressed resources. If you
  # modify the file types above, make sure to change them here accordingly.
  # @see http://developer.yahoo.com/performance/rules.html#gzip
  #
  # Note: If you are using a case-sensitive file system like HFS+ or ext4, you
  # have to change the <FilesMatch> directive as follows:
  #
  # <FilesMatch "\.(?i:js|css|xml|gz|svgz)$">
  #
  # For more information see: https://github.com/contao/core/issues/4364
  ##
  <FilesMatch "\.(js|css|xml|gz|svgz)$">
    Header append Vary Accept-Encoding
  </FilesMatch>

  ##
  # Do not cache source map files
  # @see https://github.com/contao/core/issues/8532
  ##
  <FilesMatch "\.map$">
    Header set Expires "0"
    Header set Cache-Control "no-cache, no-store, must-revalidate, max-age=0, proxy-revalidate, no-transform"
  </FilesMatch>

</IfModule>

##
# Disable MultiViews if you are having issues with requests returning the wrong
# page. Requires AllowOverride Options=All,MultiViews to be set here.
# @see https://github.com/contao/core/issues/3521
##
#Options -MultiViews

##
# URL rewriting
##
<IfModule mod_rewrite.c>
  RewriteEngine On

  ##
  # Change the RewriteBase if your Contao installation is in a subdirectoy and
  # the rewrite rules are not working properly. Usage examples:
  #
  #  RewriteBase /contao-3.0.0
  #  RewriteBase /path/to/contao
  #
  # Depending on your server, you might have to remove the line entirely.
  ##
  RewriteBase /

 
  #First rewrite any request to the wrong domain to use the correct one (here www.)
  RewriteCond %{HTTP_HOST} !^www\.
  RewriteRule ^(.*)$ https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

  #Now, rewrite to HTTPS:
  RewriteCond %{HTTPS} off
  RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]


  ##
  # If you cannot use mod_deflate, uncomment the following lines to load a
  # compressed .gz version of the aggregated Contao JavaScript and CSS files.
  ##
  #AddEncoding gzip .gz
  #<FilesMatch "\.js\.gz$">
  #  AddType "application/javascript" .gz
  #</FilesMatch>
  #<FilesMatch "\.css\.gz$">
  #  AddType "text/css" .gz
  #</FilesMatch>
  #RewriteCond %{HTTP:Accept-encoding} gzip
  #RewriteCond %{REQUEST_FILENAME} \.(js|css)$
  #RewriteCond %{REQUEST_FILENAME}.gz -f
  #RewriteRule ^(.*)$ $1.gz [QSA,L]

  ##
  # By default, Contao adds ".html" to the generated URLs to simulate static
  # HTML documents. If you change the URL suffix in the back end settings, make
  # sure to change it here accordingly!
  #
  #  RewriteRule .*\.html$ index.php [L]  # URL suffix .html
  #  RewriteRule .*\.txt$ index.php [L]    # URL suffix .txt
  #  RewriteRule .*\.json$ index.php [L]  # URL suffix .json
  #
  # If you do not want to use an URL suffix at all, you have to add a third
  # line to prevent URLs that point to folders from being rewritten (see #4031).
  #
  #  RewriteCond %{REQUEST_FILENAME} !-d
  #  RewriteRule .* index.php [L]
  #
  # If you are using mod_cache, it is recommended to use the RewriteRule below,
  # which adds the query string to the internal URL:
  #
  #  RewriteRule (.*\.html)$ index.php/$1 [L]
  #
  # Note that not all environments support mod_rewrite and mod_cache.
  ##
  RewriteCond %{REQUEST_FILENAME} !\.(htm|html|php|js|css|map|htc|png|gif|jpe?g|ico|xml|csv|txt|swf|flv|mp4|webm|ogv|mp3|ogg|oga|eot|otf|tt[cf]|woff2?|svgz?|pdf|zip|gz)$
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteRule .*\.html$ index.php [L]

  ##
  # The following rules are required if you want to pass the language as first
  # URL parameter (added in Contao 2.11). The first rule rewrites the empty URL
  # to the front end controller, the second one adds a missing trailing slash.
  ##
  RewriteRule ^[a-z]{2}(\-[A-Z]{2})?/$ index.php [L]
  RewriteRule ^([a-z]{2}(\-[A-Z]{2})?)$ $1/ [R=301,L]

</IfModule>

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Nein, das sollte bereits automatisch passieren. Warum das bei dir nicht funktioniert kann ich momentan nicht erkennen.