On: Firefox replaces Google Analytics with fake no-op ...

[pid_0]

And then every website starts doing the CNAME nonsense.

[WalterGR → pid_0]

I didn’t know what you meant, so for others equally confused, this is a decent article:

https://www.theregister.com/2021/02/24/dns_cname_tracking/

[bpodgursky → WalterGR]

I don't understand the hate for this trick. It still breaks cross-site user tracking. It's just sort of a hack around installing a hypothetical Google Analytics app on-prem or pumping in data via a server-to-server integration.

Google Analytics can't cross-reference data from other sites on the browser, b/c it's not a third party cookie now... what's the problem?

[Nemo_bis → WalterGR]

Work is ongoing on that front too: ttps://webkit.org/blog/8146/protecting-against-hsts-abuse/

[falcolas → pid_0]

If it’s only a CNAME, you’re one DNS lookup away from continuing to block it.

One DNS lookup you’re doing anyways.

[tick_tock_tick → falcolas]

It's random CNAMEs and they use the unique cname you queried as another tracking point.