Can I run TapCub alongside Google Analytics 4?

The one-week parallel plan

Migrating analytics is mostly about trust, not data transfer. Historical reports stay where they are; what moves is the report your team opens each morning. Run both tools side by side:

1. Day 1 — install. Add the TapCub snippet next to your GA4 tag. Follow the install guide. Remove nothing yet.
2. Days 2–5 — compare. Open both tools each day and compare visitors, sessions and top pages. Write down the ratio, not the difference.
3. Day 6 — recreate goals. Rebuild only the goals and events your team actually reads. Usually fewer than ten — see mapping goals.
4. Day 7 — switch. Make TapCub the link people open. Keep the GA4 tag one more month as a fallback, then remove it.

Do the two tags interfere?

No. Each library loads and reports to its own endpoint; neither reads the other’s cookies or events. The only cost is a few kilobytes of extra script. TapCub is about 2 KB gzipped and loads with defer, so it does not block rendering.

When to remove GA4

Keep GA4 for one month after you switch, as a fallback while the team gets used to the new reports. When you remove it, update your consent banner’s cookie list and delete its tag from the template — not just from Tag Manager, if it was hard-coded too.