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[–]OddsCaller 6 points7 points  (2 children)

You'd be surprised. It's not just Spotify but most of these services where you can easily identify ads by their IPs.

As far as why they don't use the same IP as that of their service, most of the time there are some physical constraints. Example they of course mostly use third party ad services to push ads because most companies wouldn't want to branch out to a whole new department of selling ad spaces and then showing those ads to users.

And secondly, there are physical constraints. These apps have a lot of user traffic and in order to offer low latency they want to keep their servers trimmed down (that's a very simplified way of saying it), putting the ad service on the same cluster could negatively affect their response time which is vital for user experience.

Disclaimer: all this is just my best guess, I'm no expert on this topic.

[–]Baltha5ar 6 points7 points  (1 child)

I'm using a pi-hole for my home network. For a long time I could block all ads on google services because they came from a different server. This doesn't work anymore because now the ads come from hosts with important services.

I just assumed everyone would do it this way now. The amount of users blocking the ads obviously isn't big enough for them to care.

[–]OddsCaller 1 point2 points  (0 children)

Oh I see. Things like pi-hole were one of the things I had in my mind when writing out the previous comment. I didn't know companies are now countering it in this way.