Today multiple webpages stopped working and there was no obvious reason.

After many things i’ve tried to fix the problem, (For examlple different console commands, tools from multiple developers, restarting my router) i tried to ping a known IP adress instead of a webpage adress. Bingo, it worked.

Well, to check if the DNS resolver cache was the culprid, i did a quick ipconfig /flushdns command in the windows commandline and as expected, the pages worked like a charm again.

ipconfig /flushdns

The dns cache speeds up website access with storing the respective IP that belongs to a queried domain. If the cache gets corrupted or a server changes ips your browser could try to access old invalid adresses.

This could be the reason of crashing apps, broken pages or missing images.