Can I still use Google Analytics?

Yes, but with conditions. Google Analytics is not inherently illegal – it depends on the technical and contractual implementation. Required are: (1) explicit, voluntary consent before tracking, (2) anonymisation or pseudonymisation of IP addresses, and (3) ideally a data processing agreement with Google that complies with GDPR. Many supervisory authorities have agreed that US tools with appropriate safeguards (Standard Contractual Clauses, Supplementary Measures) are usable – but under scrutiny. If in doubt, German alternatives like Matomo or Finteza are safer and avoid the thorny question of data transfer to the US entirely.