Searched for https://cros-legacy.ec.europa.eu/content/implementation-track-meeting-2018-12-03-04-vienna-kickoff_en 
Note: This calendar view maps the number of captures of https://cros-legacy.ec.europa.eu/content/implementation-track-meeting-2018-12-03-04-vienna-kickoff_en, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.