SEO optimization: Sitemap

We have completely restructured the sitemap generation system.

Now a single sitemap listed within the robots.txt lets Google have all links to all sitemaps with specific update dates.

The mechanism is based on the actual files that are deposited within the website, thus the lasteUpdate dates are always correct. 

An automatic procedure gathers all sections that have been tagged as SEO-friendly and from each it extracts all articles to create a sitemap full of published or archived contents.

This allows us to add sections that are not published on the menu or in the site to the sitemaps.

Images also are not SEO-friendly. The image name discrepancy between article and sitemap has been mediated by using the "Canonical" link element which tells search engines which content is original, allowing them to choose in situations of name conflict.