Nativement, Magento ne génère pas de fichier robots.txt mais il est néanmoins intéressant de bloquer certains répertoires aux moteurs de recherche :
# Website Sitemap
Sitemap:
# Crawlers Setup
User-agent: *
Crawl-delay: 30
# Allowable Index
Allow: /*?p=
Allow: /index.php/blog/
Allow: /catalog/seo_sitemap/category/
# Directories
Disallow: /404/
Disallow: /app/
Disallow: /cgi-bin/
Disallow: /downloader/
Disallow: /errors/
Disallow: /includes/
Disallow: /js/
Disallow: /lib/
Disallow: /magento/
Disallow: /pkginfo/
Disallow: /report/
Disallow: /scripts/
Disallow: /shell/
Disallow: /skin/
Disallow: /stats/
Disallow: /var/
# Paths (clean URLs)
Disallow: /catalogsearch/result/
Disallow: /catalog/product_compare/
Disallow: /catalog/category/view/
Disallow: /catalog/product/view/
Disallow: /catalogsearch/
Disallow: /checkout/
Disallow: /control/
Disallow: /contacts/
Disallow: /customer/
Disallow: /customize/
Disallow: /newsletter/
Disallow: /poll/
Disallow: /review/
Disallow: /sendfriend/
Disallow: /tag/
Disallow: /wishlist/
Disallow: /index.php/catalogsearch/result/
Disallow: /index.php/catalog/product_compare/
Disallow: /index.php/catalog/category/view/
Disallow: /index.php/catalog/product/view/
Disallow: /index.php/catalogsearch/
Disallow: /index.php/checkout/
Disallow: /index.php/control/
Disallow: /index.php/contacts/
Disallow: /index.php/customer/
Disallow: /index.php/customize/
Disallow: /index.php/newsletter/
Disallow: /index.php/poll/
Disallow: /index.php/review/
Disallow: /index.php/sendfriend/
Disallow: /index.php/tag/
Disallow: /index.php/wishlist/
# Files
Disallow: /cron.php
Disallow: /cron.sh
Disallow: /error_log
Disallow: /install.php
Disallow: /LICENSE.html
Disallow: /LICENSE.txt
Disallow: /LICENSE_AFL.txt
Disallow: /STATUS.txt
# Paths (no clean URLs)
Disallow: /*.js$
Disallow: /*.css$
Disallow: /*.php$
Disallow: /*?p=*&
Disallow: /*?SID=
Disallow: /*?limit=all
# Uncomment if you do not wish for Google to index your images
#User-agent: Googlebot-Image
#Disallow: /Si vous souhaitez spécifier des instructions et des paramètres supplémentaires dans le fichier robots.txt, vous pouvez consulter le manuel d'implémentation du fichier robots.txt