If so this should be hosted in GOV.WALES core, near to a start page for your GOV.WALES service or tool, and you should link to this.
Os felly, dylai gael ei we-letya yng nghraidd LLYW.CYMRU, ger tudalen gychwynnol ar gyfer eich gwasanaeth neu’ch offeryn LLYW.CYMRU, a dylech gynnwys dolen ato.