[chongli]

I thought the whole purpose of using third party JavaScript and third party cookies in advertising is that the advertisers don't trust the host backends. What's to stop a site operator from "boosting" the stats in order to make more money?

[jeromegv]

Useful for people using Facebook pixel, Google Ads pixel. They have no incentive to lie (they aren't making money out Facebook or Google), it's just about making sure their users are being tracked after clicking an ad on Instagram, etc.

[puffy_magicdrgn]

So you just do a get adprovider.foo/track/<id> from the browser with no cookies and batch send from your backend -- they then just make sure the data you send them roughly matches?

For most big sites this isn't a problem as you're not going to be gaming the stats (presumably the legal costs outweigh the benefit) -- for the scammy small sites faking ad rev.. Well, if this kills them then good riddance ?

[chongli]

Can't the big sites negotiate directly with advertisers? I thought I read somewhere that the New York Times does this. In that case, why bother with the bloat of ad networks and their monstrous JavaScripts and other garbage?

If it's (as you say) good riddance to the small, scammy sites then I think it's the medium-sized sites which will really have a problem. Not big enough to negotiate directly, not small enough to disappear overnight.

[londons_explore]

> why bother with the bloat of ad networks

Except a few very rare cases, ad networks can statistically deliver a far more effective ad than a manually curated ad.

The network also has the infrastructure in place to track the user all the way from the ad click to completing a purchase, potentially across many devices or even in a physical store. They use those numbers to demonstrate their value with hard figures rather than marketing fluff.