What DNS Propagation Means for Your Website's Availability

https://city-wiki.win/index.php/What_DNS_Propagation_Means_for_Your_Website%27s_Availability

DNS propagation is the time it takes for domain name changes to update across the internet's servers, anywhere from minutes to 48 hours. Until it completes, some visitors might still reach your old site or get errors, so expect temporary hiccups in website availability during this period.