Tracking. Tied to use account, length of stay, how many reclixks, etc for marketing by/ads and surveillance.

But what’s stopping Google from doing this already?

I copy a tracking link from google in my reply here. You click on the link. Google now connects me and my search session to you and knows where I gave you this link from. If I get the original url, all google knows is that I copied that link and nothing else.

JavaScript being disabled - Google was already sending analytics pings when search result links were clicked on, using JS.

<a ping=""> works without JS in Chrome and Safari (but not Firefox) https://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorE...

Even with JS enabled, those ping requests (and other tracking) could be blocked; this new measure can not be.

https://news.ycombinator.com/item?id=49680338

JavaScript is required to use Google search at all, no?

Oh that is true, I forgot they changed that.

It doesn't work without JS though.

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Pings are blockable in Firefox and so are the event analytics requests triggered by Google's on-page JavaScript.