Comment by ses1984
7 years ago
Don't browsers and operating systems mostly respect ttls?
So if some things are cached, you won't get a complete picture, but the picture you get might be enough.
7 years ago
Don't browsers and operating systems mostly respect ttls?
So if some things are cached, you won't get a complete picture, but the picture you get might be enough.
I can't tell. I run Firefox at home, and set up my own DoH server (mainly because I saw the writing on the wall and and if Mozilla/Google are going to shove this down my throat, I want it shoved down on my terms, but I digress). If I visit my blog (which has a DNS TTL of 86,400) I get a query for my domain not only on every request, but even if I just hover over the link. It will also do a query when I click on a link to news.ycombinator.com (with a TTL of 300) but not when I hover over a link. It's bizarre.
Mostly, yes. In my experience (as a service provider) Chrome has a bad habit of caching records occasionally for much much longer than it should. Maybe bug maybe intentional, I dunno.