In no particular order:
- SilverStripe' Google Sitemaps - all websites should have a sitemap.xml
- Axllent' trailing-slash module - keep URLs consistent.
- A collection of modules build by Graphiques Digitale to expose information to increase your back linking.
- Analyse the content issues with hubertusanton' seo and micschk' liveseo.
Just run:
# install the package
composer require friendsofsilverstripe/seo-suite
# add run dev/build
php ./framework/cli-script.php dev/build
- g4b0' SilverStripe htmlpurifier - great idea, requires a bit more work...