RPB Chessboard is a plugin for WordPress, the popular blog CMS. It allows to typeset and display chess games and diagrams in posts and pages of WordPress blogs, using the standard FEN and PGN notations.
https://wordpress.org/plugins/rpb-chessboard/
https://rpb-chessboard.yo35.org/
If you encounter some bugs with this program, or if you wish to get new features in the future versions, you can report/propose them in the GitHub bug tracker.
If you are interested in translating this plugin into your language, please contact the author.
Custom developments in relation with RPB Chessboard (e.g. specific feature, advanced customization...) can be realized by the author as a paid service. If you need to have such custom developments for your website, please feel free to contact the author.