ieiji said:
I would have to congratulate you on both being somehow intelligent enough to pull images from data that realistically is buried excessively deep in the darkest corners of the internet

google isnt the only way to search for things
its a search engine for sure but how did you think people used to get urls from websites?
either by sharing or having a crawler which is literally what google is but "highly advanced" over the years

aka
just because YOU cant find it
doesnt mean you can't find it

it's relatively easy to set up something to scrap and craw through networks that nobody has ever found, heard, knew existance or knew someone could access
if you know what you are about to do
through the years people just only used(by majority) google and didnt had to have any other crawlers or search engines leaving some illegal still being able to be found if you know what you are doing

tl dr
it is hard to find that type of content but isnt THAT hard if you have little knowledge and power

but also coming across irl bestiality content you can do that by fucking accident or without your consent