Run next to GA4 for a week before you rip anything out

Do not delete GA4 on day one. Add Cookie Free Analytics next to it. A week later you will know what the banner was hiding. That is the migration. The longer recipe is on /migrate.

We count the landing, the source, and the named goal. Ads platforms still do conversion tags. Many sites run both. Compare your own two totals for the same date range.

What will not come across

There is no historical import. Different instruments. Start a clean Cookie Free Analytics history. Hobby shows a badge; Starter hides it from €4. First-party is a CNAME on a subdomain such as c.yourdomain.com.

Compare pageviews to pageviews. A “visitor” here is unique for one UTC day, not a person across a month. Bounce is a 30-minute visit with one page. If you need Google Ads audiences, keep GA.