  We discuss the presence of a light dilaton in Conformal Field Theories
deformed by a single scalar operator, in the holographic realization consisting
of confining Renormalization Group flows. Then, we apply this formalism to
study the extension of the Standard Model with a light dilaton in a 5D warped
model. We study the spectrum of scalar and vector perturbations, compare the
model predictions with Electroweak Precision Tests and find the corresponding
bounds for the lightest modes. Finally, we analyze the possibility that the
Higgs resonance found at the LHC be a dilaton.
