OT, but is anyone here also redirected to "https://guce.advertising.com/collectIdentifiers?sessionId=3_...", which gets blocked by µBlock Origin? It's a HTTP redirect.

This only happens with my IPv6 landline internet connection (german carrier Telekom), via IPv4 mobile internet (T-Mobile) it loads fine. Happens with two different devices, so it shouldn't be a compromised device, Techcrunch TLS certificate is valid, so it also should not be a compromised router or my ISP. Are they A/B testing?

You can use https://github.com/StevenBlack/hosts as your hosts file, but even better is TLD and wildcard domain blocking with dnsmasq or dnscrypt-proxy.