I have setup Pi-Hole together with stubby and dnscrypt-proxy.
Expected Behaviour:
Pi-Hole should filter out and block static images and GIF ads.
Actual Behaviour:
Unfortunately for quite a while static images and GIF ads are not blocked on any of my devices.
I'm pretty sure that this worked in the past. Pretty much anything else is blocked.
Does anyone know why static images and GIF ads are not being blocked and what can be done so adblocking will work again as expected?
Pi-hole never has been aware of images - as a filtering DNS server, Pi-hole only ever sees domains.
If you were trying to block resources like images of a certain URL, a DNS filter like Pi-hole could only do so by blocking the domain that serves those resources, but then all other content from that domain would also be blocked.
If you'd actually want to block specific URLs, you'd have to use a browser extension like uBlockOrigin to block those.
I'm aware that these Images and GIF must come from allowed domains.
But these are not blocked generally and when I tried to block specific domains it didn't worked.
Anyway I would not know how to block so many ads manually.
As I stated I'm pretty sure that this had worked before and I don't know why it's not working anymore.
I use uBlock origin as browser extension as well and it does work.