English: Robots.txt
Welsh: Robots.txt
Subject: TGCh
English definition: This is a permissions file, located in the root directory that controls which web pages can be harvested or indexed by a search engine.
Welsh definition: Ffeil ganiatâd yw hon, a leolir yn y cyfeirlyfr gwraidd sy'n rheoli pa dudalennau gwe y gellir eu cynaeafu neu eu mynegeio gan beiriant chwilio.