Background Autism Spectrum Disorder (ASD) is a neurodevelopmental condition diagnosed through the assessment of early-onset difficulties in social communication and repetitive behaviours and restricted interests, leading to dysfunctioning in at least two contexts (American Psychiatric Association, 2013; Lai, Lombardo, & Baron-Cohen, 2014). Parents are pivotal in the care of children with a (presumed) ASD diagnosis. Indeed, in understanding and supporting children with a diagnosis, parents occupy a central position (Lord, Elsabbagh, Baird, & Veenstra-Vanderweele, 2018; Mintz, 2018). Moreover, it has been argued that understanding ASD begins with listening to, communicating with, and learning from autistic people and their families, and by understanding their experiences (Bakan, 2018; Cascio, 2018). Several studies investigated parents' experiences of their child having ASD and getting an ASD diagnosis. Previous research investigated diagnostic best practices for ASD, and made recommendations to improve the diagnostic assessment, the disclosure of a diagnosis, and parents' satisfaction after the feedback session. For example, studies have shown that a clinician's manner during the disclosure of the ASD diagnosis was important, and a follow-up appointment was advised to take place within weeks after the