When DNS records change, your device or browser may still use cached results. Clearing DNS cache helps fetch fresh DNS data.
ipconfig /flushdns
Clear-DnsClientCache
sudo dscacheutil -flushcache
and then sudo killall -HUP mDNSResponder
sudo resolvectl flush-caches
(or sudo systemd-resolve --flush-caches
)sudo service nscd restart
(or sudo systemctl restart nscd
)sudo systemctl restart dnsmasq
sudo systemctl reload NetworkManager
(or sudo systemctl restart NetworkManager
)chrome://net-internals/#dns
or edge://net-internals/#dns
and click “Clear host cache”.about:networking#dns
and click “Clear DNS Cache”.