Shared hosting is a great starting point, but successful sites eventually need more resources. Watch for these warning signs.

1. Pages load slowly during traffic spikes
2. You receive CPU or process limit notifications
3. Traffic has grown steadily for several months
4. You need custom server software or cron jobs
5. Multiple staging environments are required
6. Checkout or API latency affects revenue
7. Neighbour sites on the server impact your performance

Upgrading to a Capnis VPS gives you isolated resources and root access while keeping costs reasonable.