Properties of stellar regions occulted by HD 209458b and WASP-76b. Dotted vertical lines show transit contacts. Measured values (first epochs in blue, second epochs in red) are derived from best-fit profiles to each intrinsic CCF, before convolution with ESPRESSO LSF (Sect. 8.2.2). They are thus comparable to the models (dashed black curves) derived from fits to intrinsic CCF series (Sect. 8.3.1). The black curve in WASP-76 surface rv is the model from Ehrenreich et al. (2020). The two outliers in contrast at the limbs of HD 209458 are consistent with the FWHM and rv series, and thus kept in the analysis. WASP-76 local stellar lines are fully contaminated by the planet over the shaded range.