How long google chrome and firefox cache DNS records
I think its a duplication of Firefox invalidate dns cache
There are two configuration values for it in Firefox:network.dnsCacheExpiration and network.dnsCacheExpirationGracePeriod with a default of 60 seconds (v45).
More info: http://kb.mozillazine.org/Network.dnsCacheExpiration
In Chrome:chrome://net-internals/#dns It seems the default is ~1minute (v66).
Don't forget about your system DNS cache. The browser does not talk with the DNS server directly, but rather your system resolver, so TTL is irrelevant here.
Try also this solution, it uses the "hidden" top right black arrow in the chrome net-internals page.It works immediately.