You might have clicked on a techcrunch link in the past few weeks or live in a country different than the OP. They use http redirects to assign you an advertising ID based on your IP or something afaik.

I would say its more concerning for everyone else that is getting third party cookies embedded as first

It is only for European users

I have the same behaviour. Techcrunch is redirecting to their spying partner and then the adblocker shows an error page.

I guess it's an http redirect but I haven't checked because I prefer to write comments than debugging crappy websites.

To the people behind this : Go to hell.

The latter.

I am. I'm using uBlock Origin, but apparently this redirect got through. Then the DNS lookup of guce.advertising.com failed because of the filter I have set up on that end, so my Techcrunch experience ended on an error page.