Pi Hole Ad block help

Hi, Ive set up my Pi hole and i believe I have set is as my primary DNS however im noticing Ads such as on news.com.au are still getting through. I am unsure what i have done wrong.

empty your cache and restart your device

also check in pihole logs if the domains are red marked

how do i find the specific domain? etc news.com.au still has ads

i'm new into pihole i just installed it yesterday but isn't it a problem with ipv6 ?