Our web site was ten years old, a major refresh was more than needed.
This new one is no more based on a CMS engine but is coded in python with the jinja2 template engine and generated statically.
The site is now generated on the fly including the screenshots pages. Very important, the new site translation is managed through po files like the GCompris code base making it easier for translators to localize the web site.
The source of the site can be found on github here