Searched for https://iite.unesco.org/announcements/international-webinar-advancing-open-educational-practice-in-line-with-unesco-oer-recommendations-during-covid-19-pandemic/
Note: This calendar view maps the number of captures of https://iite.unesco.org/announcements/international-webinar-advancing-open-educational-practice-in-line-with-unesco-oer-recommendations-during-covid-19-pandemic/, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.