Gwynedd Council 
193.39.172.1 is owned by Gwynedd Council (http://www.gwynedd.gov.uk). It could be anyone from a child in one of the libraries or schools to a mamber of staff doing this. If you can let us know (webmaster@gwynedd.gov.uk) what pages and the exact times the vanadalism took place, we can chase up who has been causing the vandalism and hopefully put a stop to it.