# Faceted navigation on an online shop.
# One product listing with filters can generate millions of URLs that all
# show roughly the same goods. The rules below close the combinations and
# keep plain pagination open, because that is how deep pages get discovered.

User-agent: *
# Filters and sorting: closed
Disallow: /*?color=
Disallow: /*?size=
Disallow: /*?brand=
Disallow: /*?price=
Disallow: /*?sort=
Disallow: /*?orderby=
Disallow: /*?view=
Disallow: /*&color=
Disallow: /*&size=
Disallow: /*&sort=
#
# Session and tracking parameters
Disallow: /*?sid=
Disallow: /*?sessionid=
Disallow: /*?utm_
#
# Pagination: open on purpose
Allow: /*?page=
#
# Personal pages
Disallow: /cart
Disallow: /checkout
Disallow: /account

Sitemap: https://example.com/sitemap.xml