User-agent: *
# explicitly allow images
Allow: /media/
Allow: /pub/media/

# Block sensitive areas
Disallow: /index.php/
Disallow: /checkout/
Disallow: /app/
Disallow: /lib/
Disallow: /*.php$
Disallow: /pkginfo/
Disallow: /report/
Disallow: /var/
Disallow: /customer/
Disallow: /sendfriend/
Disallow: /review/
Disallow: /catalogsearch/
Disallow: /search/

# Block sorting parameters to save crawl budget, but be careful blocking all '?'
Disallow: /*?dir*
Disallow: /*?limit*
Disallow: /*?mode*
Disallow: /*?order*

# Do NOT block /catalog/ or generic /*?